Are foam columns strong enough outside?

Yes — with proper coatings and, where needed, internal posts. That’s standard practice.

How real do they look?

Unbelievably real. We’ve had builders knock on them to check if they’re stone.

Can you replicate historical designs?

Absolutely. We scan, model, and produce with millimeter precision. We’ve even recreated a Tuscan column that resembles original structures from 18th-century villas.

Do you offer samples?

Yes — finish samples and full-scale mockups are available.

What’s the lifespan?

Measured in decades with minimal maintenance. Foam doesn’t rot, rust, or degrade.

Rinse with water, inspect seals occasionally, repaint if desired.

Structural or decorative?

Both. For structural applications, we sleeve around steel or aluminum posts.

Can lighting actually be built into the columns themselves?

Absolutely — and we do it more often than you might think. Because foam is so easy to shape, we can carve internal channels for LED strips, spotlights, or even concealed uplighting that washes a façade in a warm glow. On a luxury residential project in Sarasota, for instance, we created a row of exterior architectural columns with integrated ambient lighting. By day, they framed the veranda with classical symmetry; by night, they transformed the space into a dramatic stage for evening gatherings, with light spilling softly across the terrace. The homeowners told us it was “like discovering a whole new house after sunset.”

Will these columns actually hold up in harsh coastal climates?

Yes — they’re engineered for exactly that. Our coatings are formulated to resist salt spray, humidity, and UV degradation, which is why installations along the Miami waterfront are still performing flawlessly after more than a decade. Even in locations with hurricane-level weather, the columns retain their structural integrity and appearance, needing only occasional rinsing to keep them looking new.

Do you offer nationwide delivery — and is shipping expensive?

We do, and thanks to the material’s lightweight nature, shipping is often much more affordable than clients expect. A typical set of outdoor columns can travel cross-country on a standard pallet, without the need for heavy-duty rigs or oversized loads. This not only keeps logistics simple but also shortens lead times significantly.

What’s the most creatively challenging project you’ve ever delivered?

One of the most unforgettable ones was a “sound corridor” we designed for a music conservatory in Orlando. The architect wanted two opposing rows of columns that would carry sound naturally across a courtyard — a poetic idea that many suppliers dismissed as impossible. We engineered the inner surfaces of each column to subtly reflect and focus sound waves. The result? A whisper spoken at one end of the walkway could be clearly heard 40 feet away. It was part art installation, part acoustic experiment — and a perfect example of how foam lets imagination push past the limits of conventional materials.

Can you really change how a porch looks that fast?

Yes — often in just a couple of weeks. And the result isn’t just new columns, it’s a completely different first impression.

Do they work for perimeter upgrades?

Yes. We once replaced failing piers with stucco fence columns and integrated stucco gate columns with hidden camera wiring. Clean, efficient, and maintenance-free.

How do they compare to masonry?

Lower weight, faster install, fewer trades, fewer cracks, less upkeep. And they look just as good — often better.

Established Precision

Architectural columns

Don’t let the weight and cost of traditional materials dictate your design. Our lightweight architectural columns deliver the precise look and lifespan of concrete, but install in a fraction of the time with no additional structural reinforcement.

Request a free quote Schedule appointment

40 ft

Max height

5–10-Year

Warranty

90%

Lighter than stone

Architectural ColumnsCorinthian Capital Circle

Architectural ColumnsScamozzi Capital Modern Circle

CSI MasterFormat

30+ options

Request more info

Custom EPS Columns

Polyurea Protective Coating

CNC Hot-Wire Fabrication

4″–60″ Diameter Range

Up to 40 ft in Height

90% Lighter Than Stone

Engineered for every vision

Whether you’re designing, building, or managing, our columns are engineered to elevate your project.

For Architects & Designers

Finally, stop value-engineering your best ideas. Whether it’s a historically accurate replication or a sleek modern statement, we provide the technical partnership you need to build bold.

100%

Precision to your CAD specifications

For Developers & Builders

Protect your margins and crush your deadlines. Our pre-finished columns deliver a high-end, unified look for entire communities with installation speeds that keep you weeks ahead of schedule.

20–30%

Faster delivery vs. stone or precast

For Commercial Properties

Create a sense of permanence and authority. These elements aren’t just decorative — they are zero-maintenance assets designed to elevate your brand presence for decades.

Lifetime maintenance and repair costs

For Luxury Homeowners

Get the massive, old-world look of masonry without the disruptive, months-long construction process. Stunning architectural elements that install in a single day.

90%

Lighter than traditional solid stone

Schedule an appointment Request a FREE quote

From structural post to architectural statement

EPS architectural shapes that look like stone — without the weight, cost, or structural engineering.
Built to spec, installed in hours.

System Architecture

EPS Core + Polyurea Shell
vs. Conventional Materials

Component	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Core	Primary shaped body	1.0 / 2.0	lb/ft³	ASTM C578	Defines weight + compressive behavior	All EPS products	Our company's working density
Adhesive Layer	Laminates foam sections	Construction-grade	system	Manufacturer spec	Prevents separation of parts	Built-up products	Use compatible foam-safe adhesive
Polyurea Shell	Primary hard protective coat	30–60	mil	Manufacturer spec	Impact, moisture, abrasion resistance	Exterior products	Our company's working thickness
Base Primer	Promotes coating bond	1 coat	layer	Manufacturer spec	Improves adhesion	Before polyurea	Required by coating system
Finish Coat	Paint or decorative finish	2 coats	layer	Paint spec	UV resistance + final appearance	Exterior/interior	Color depends on project
Products	Top architectural element	Custom	dimension	Project drawings	Visual hierarchy	Classical/custom products	Can be foam-built or composite
Products	Main cylindrical/tapered body	Custom	dimension	Project drawings	Main visible mass	Round/square/tapered products	CNC-shaped
Products	Bottom transition element	Custom	dimension	Project drawings	Visual stability + clean termination	All products	Sized to field conditions
Mechanical Anchoring	Attachment to substrate	Project-specific	detail	Engineer of record / FBC	Resists wind and service loads	Exterior products	Depends on wall/frame condition
Sealant at Joints	Weather sealing at seams	Exterior-grade	system	Sealant spec	Helps block water intrusion	Segment joints	Important in Florida exposure
Wind Resistance	Assembly performance target	120–180	PSF	Florida Building Code / project engineering	Affects fastening design	Exterior use	Depends on geometry + anchorage
Service Life	Expected lifespan when properly built	15–25+	years	Industry practice	Supports lifecycle value	Commercial/residential	Requires maintenance of finish

Component	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Core	Primary shaped body	1.0 / 2.0	lb/ft³	ASTM C578	Defines weight + compressive behavior	All EPS products	Our company's working density
Adhesive Layer	Laminates foam sections	Construction-grade	system	Manufacturer spec	Prevents separation of parts	Built-up products	Use compatible foam-safe adhesive
Polyurea Shell	Primary hard protective coat	30–60	mil	Manufacturer spec	Impact, moisture, abrasion resistance	Exterior products	Our company's working thickness
Base Primer	Promotes coating bond	1 coat	layer	Manufacturer spec	Improves adhesion	Before polyurea	Required by coating system
Finish Coat	Paint or decorative finish	2 coats	layer	Paint spec	UV resistance + final appearance	Exterior/interior	Color depends on project
Products	Top architectural element	Custom	dimension	Project drawings	Visual hierarchy	Classical/custom products	Can be foam-built or composite
Products	Main cylindrical/tapered body	Custom	dimension	Project drawings	Main visible mass	Round/square/tapered products	CNC-shaped
Products	Bottom transition element	Custom	dimension	Project drawings	Visual stability + clean termination	All products	Sized to field conditions
Mechanical Anchoring	Attachment to substrate	Project-specific	detail	Engineer of record / FBC	Resists wind and service loads	Exterior products	Depends on wall/frame condition
Sealant at Joints	Weather sealing at seams	Exterior-grade	system	Sealant spec	Helps block water intrusion	Segment joints	Important in Florida exposure
Wind Resistance	Assembly performance target	120–180	PSF	Florida Building Code / project engineering	Affects fastening design	Exterior use	Depends on geometry + anchorage
Service Life	Expected lifespan when properly built	15–25+	years	Industry practice	Supports lifecycle value	Commercial/residential	Requires maintenance of finish

Integrated Multi-Layer System

Our company’s architectural products are engineered as a fully integrated system composed of:

EPS Core: 1.0–2.0 lb/ft³ density
Polyurea Coating: two-component, 30–60 mils
Adhesion Primer
UV-Stable Finish Coat

Core Philosophy

This is not a sequence of separate layers. It is a closed engineered envelope where every component has a defined structural or protective role.

Functional Role of Each Layer

EPS Core: Provides geometric form. Maintains dimensional stability. Reduces total weight.
Polyurea Shell: Adds mechanical resistance. Provides chemical inertness. Blocks moisture intrusion.
Primer Layer: Ensures bond integrity between materials.
Finish Coat: Protects against UV exposure. Stabilizes final appearance.

Why Conventional Materials Fall Short

Wood: Vulnerable to moisture and decay. Requires constant maintenance. Can structurally degrade in 3–7 years in harsh climates.
Fiberglass: Dependent on rigid molds. Limited to prefabricated shapes. Custom designs become expensive.
PVC: Thermal expansion: $5–8 \times 10^{-5}/°C$ . Can warp, open joints, and lose dimensional accuracy under temperature swings.
Precast Concrete / Natural Stone: Extremely heavy. Requires cranes and reinforced substrates. Slower, more complex installation process.

Performance Advantages of Our Company

CNC Precision: ±3 mm across any profile.
Weight Reduction: 60–80% lighter than reinforced concrete.
Faster Installation: No heavy lifting equipment required.
Lower Structural Load: Reduced dead load on building envelope.
Wind Resistance: 120–180 PSF.
Code Engineering: Designed to Florida Building Code requirements.
Permit Ready: Substrate-specific anchorage by licensed engineer.

Final Result

Our company is not a decorative surface treatment. It is a fully documented, engineered, permit-ready architectural system designed to move efficiently from fabrication to installation without rework.

Request a free quote

Material Composition

Engineering Advantages of EPS/Polyurea Over Wood, PVC, and Fiberglass

Layer / material	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Type I	Lightweight core option	1.0	lb/ft³	ASTM C578	Lower weight, easier handling	Non-critical decorative volumes	Economical option
EPS Type II	Denser core option	2.0	lb/ft³	ASTM C578	Higher compressive performance	Higher-abuse / larger elements	Preferred for stronger assemblies
Closed-cell EPS	Foam cell structure	Closed-cell	type	ASTM C578	Low water absorption compared with open-cell foams	Exterior/interior	Royal Foam technology
Polyurea Coating	Elastomeric hard coat	30–60	mil	Manufacturer spec	Primary durability layer	Exterior elements	Royal Foam working range
Polyurea Chemistry	Fast-set sprayed coating	2-component	system	Manufacturer spec	Rapid cure for production	Coated EPS parts	Requires proper prep
Primer	Surface preparation layer	1 coat	layer	Manufacturer spec	Promotes coating bond	Before polyurea	Do not skip CNC-shaped
Paint / Finish	UV-stable decorative finish	2 coats	layer	Paint spec	Color retention + aesthetics	Visible surfaces	Final appearance depends on finish system
Adhesive	Foam-safe joining material	Project-specific	system	Manufacturer spec	Section bonding	Multi-part assemblies	Must be coating-compatible
Sealant	Flexible weather joint material	Exterior-grade	system	Sealant spec	Moisture defense at seams	Field joints	Important for Florida rain exposure
Optional Reinforcement	Internal rods/plates/brackets	Project-specific	detail	Engineer of record	Improves anchorage / load transfer	Large or special elements	Not every element needs it
Fasteners / Anchors	Attachment hardware	Project-specific	detail	FBC / engineer	Critical to actual wind performance	Exterior installation	Substrate matters
Surface Texture	Smooth / stone / custom effect	Custom	finish	Project spec	Controls visual style	Architectural applications	Supports premium positioning

Layer / material	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Type I	Lightweight core option	1.0	lb/ft³	ASTM C578	Lower weight, easier handling	Non-critical decorative volumes	Economical option
EPS Type II	Denser core option	2.0	lb/ft³	ASTM C578	Higher compressive performance	Higher-abuse / larger elements	Preferred for stronger assemblies
Closed-cell EPS	Foam cell structure	Closed-cell	type	ASTM C578	Low water absorption compared with open-cell foams	Exterior/interior	Royal Foam technology
Polyurea Coating	Elastomeric hard coat	30–60	mil	Manufacturer spec	Primary durability layer	Exterior elements	Royal Foam working range
Polyurea Chemistry	Fast-set sprayed coating	2-component	system	Manufacturer spec	Rapid cure for production	Coated EPS parts	Requires proper prep
Primer	Surface preparation layer	1 coat	layer	Manufacturer spec	Promotes coating bond	Before polyurea	Do not skip CNC-shaped
Paint / Finish	UV-stable decorative finish	2 coats	layer	Paint spec	Color retention + aesthetics	Visible surfaces	Final appearance depends on finish system
Adhesive	Foam-safe joining material	Project-specific	system	Manufacturer spec	Section bonding	Multi-part assemblies	Must be coating-compatible
Sealant	Flexible weather joint material	Exterior-grade	system	Sealant spec	Moisture defense at seams	Field joints	Important for Florida rain exposure
Optional Reinforcement	Internal rods/plates/brackets	Project-specific	detail	Engineer of record	Improves anchorage / load transfer	Large or special elements	Not every element needs it
Fasteners / Anchors	Attachment hardware	Project-specific	detail	FBC / engineer	Critical to actual wind performance	Exterior installation	Substrate matters
Surface Texture	Smooth / stone / custom effect	Custom	finish	Project spec	Controls visual style	Architectural applications	Supports premium positioning

Engineered Composite System

Our company’s products are built on a composite material architecture that no single conventional material can replicate.

Core Structure

EPS TYPE I: 1.0 lb/ft³ density
EPS TYPE II: 2.0 lb/ft³ density
Standards: Classified under ASTM C578
Material: Closed-cell EPS foam
Moisture Resistance: Water absorption below 2% per ASTM C272

Why It Matters

This low absorption threshold is critical for facade elements exposed to:

Wind-driven rain
Condensation cycles
Sustained humidity

Protective Outer Shell: Two-Component Polyurea Coating

Applied Thickness: 30–60 mils
Shore D Hardness: 40–70
Durability: High impact and abrasion resistance
Chemistry: Chemical inertness

Performance Benefit:

Far exceeds conventional paints and gelcoats in durability and service resistance.

Technical Comparison with Competing Materials

WOOD: Hygroscopic by molecular structure. Shrinks, warps, and separates under wet/dry cycles. Vulnerable to fungi and insects. Structural degradation in 5–10 years in warm humid climates.
ENGINEERED LUMBER: Reduces variability, but remains moisture-sensitive and biologically vulnerable.
PVC: Loses 30–40% elastic modulus above 40°C (104°F). Creeps under self-weight and wind pressure. UV causes embrittlement and pigment breakdown in 7–10 years.
FIBERGLASS: Often lacks third-party certified data in custom fabrication. Gelcoat damage allows hidden water intrusion. Internal delamination may remain invisible until failure.

Failure Modes Eliminated by Royal Foam

Our company EPS + Polyurea removes all common substrate failures:

No cellulosic substrate to rot
No metal components to corrode
No thermoplastic matrix to creep
No laminate interface to delaminate

Long-Term Client Value (Delivered Performance)

Projected Service Life: 15–25+ years
Maintenance Interval: 5–10 years
Topcoat refinishing only
ASTM-traceable performance data
Based on documented standards, not marketing claims

Final Statement:

Our company is a measurable, testable, engineered exterior product system designed for long-term architectural performance.

Request a free quote

Durability

Systemic Service Performance of EPS/Polyurea in Demanding Climates

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density	Core density affects dent resistance	1.0 / 2.0	lb/ft³	ASTM C578	Higher density improves robustness	All Products	2.0 better where abuse is higher
Polyurea Thickness	Primary hard coat thickness	30–60	mil	Manufacturer spec	Major durability driver	Exterior Products	Royal Foam Working Range
Water Absorption	EPS water absorption	Low	qualitative	ASTM C272	Helps in humid environments	Exterior/interior	System still needs sealed finish
Moisture Resistance	Coated system resists rain splash	High	rating	Finish system	Florida suitability	Exterior Products	Seams must be sealed
UV Exposure	Finish must resist sun degradation	Requires topcoat	system	Paint spec	Affects color life	Exterior in Florida	Polyurea should be topcoated
Impact Resistance	Coating helps resist minor impact	Medium to high	rating	Coating spec	Important at pedestrian level	Retail/commercial	Not equivalent to solid concrete
Crack Control	Joint detailing reduces cracking risk	Project-specific	detail	Installation best practice	Preserves appearance	Segmented builds	Movement joints may be needed
Abrasion Resistance	Hard shell resists scuffing	High	rating	Coating spec	Useful in touch-prone areas	Entry Products	Depends on finish quality
Biological Resistance	EPS does not rot like wood	High	rating	Material property	Lowers maintenance	Exterior/interior	Still protect finish required
Corrosion Resistance	Foam shell will not rust	High	rating	Material property	Advantage over unprotected steel skins	Humid/coastal areas	Anchors may still require protection
Maintenance Cycle	Repaint/reseal as needed	5–10 typical	years	Paint maintenance	Extends service life	Exterior projects	Climate + color affect cycle
Service Life	Expected full-system life	15–25+	years	Industry practice	Supports lifecycle value	All Products	Assumes proper installation

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density	Core density affects dent resistance	1.0 / 2.0	lb/ft³	ASTM C578	Higher density improves robustness	All Products	2.0 better where abuse is higher
Polyurea Thickness	Primary hard coat thickness	30–60	mil	Manufacturer spec	Major durability driver	Exterior Products	Royal Foam Working Range
Water Absorption	EPS water absorption	Low	qualitative	ASTM C272	Helps in humid environments	Exterior/interior	System still needs sealed finish
Moisture Resistance	Coated system resists rain splash	High	rating	Finish system	Florida suitability	Exterior Products	Seams must be sealed
UV Exposure	Finish must resist sun degradation	Requires topcoat	system	Paint spec	Affects color life	Exterior in Florida	Polyurea should be topcoated
Impact Resistance	Coating helps resist minor impact	Medium to high	rating	Coating spec	Important at pedestrian level	Retail/commercial	Not equivalent to solid concrete
Crack Control	Joint detailing reduces cracking risk	Project-specific	detail	Installation best practice	Preserves appearance	Segmented builds	Movement joints may be needed
Abrasion Resistance	Hard shell resists scuffing	High	rating	Coating spec	Useful in touch-prone areas	Entry Products	Depends on finish quality
Biological Resistance	EPS does not rot like wood	High	rating	Material property	Lowers maintenance	Exterior/interior	Still protect finish required
Corrosion Resistance	Foam shell will not rust	High	rating	Material property	Advantage over unprotected steel skins	Humid/coastal areas	Anchors may still require protection
Maintenance Cycle	Repaint/reseal as needed	5–10 typical	years	Paint maintenance	Extends service life	Exterior projects	Climate + color affect cycle
Service Life	Expected full-system life	15–25+	years	Industry practice	Supports lifecycle value	All Products	Assumes proper installation

Warm, coastal, and high-humidity climates present a compound durability challenge for exterior architectural products: wind-driven rain, sustained UV exposure, biological growth, salt-laden air, and diurnal thermal cycling all operate simultaneously and without interruption for the full service life of the installation.

Any material selection that addresses only one or two of these mechanisms while remaining vulnerable to the others will produce premature failure.

Our company EPS/polyurea products are engineered to resist all active degradation mechanisms in parallel, not in sequence.

The polyurea coating at 30–60 mils functions as a continuous elastomeric barrier — no seams, no capillary channels, no porous zones through which moisture can migrate to the EPS core.

With Shore D hardness of 40–70, it resists pedestrian-level mechanical impacts (tool contact, equipment brushing, incidental loading) at a level unachievable with conventional latex paint or fiberglass gelcoat.

The EPS core is chemically inert: it does not provide a metabolizable carbon source for fungal or bacterial colonization, does not react with moisture, and does not contain ferrous components capable of corrosion.

When joints and terminations are properly detailed and sealed, the assembled system delivers high moisture resistance performance even under sustained wind-driven rain exposure.

Competing Materials Fail by Documented Mechanisms

WOOD: Demands repainting every 3–5 years, chemical treatment against insect attack, and annual inspection for decay — cumulative 20-year maintenance expenditure routinely exceeds original installed cost.
PVC: Embrittles and discolors under UV in 7–10 years; thermal expansion mismatches at joints create pathways for water infiltration.
FIBERGLASS: Delaminates internally when the protective gelcoat is breached, a failure mode that is undetectable without non-destructive testing until visible surface collapse occurs.

Clients who specify our company products receive a warranted system service life of 15–25+ years, a predictable maintenance cycle of topcoat refinishing every 5–10 years, and resistance to biological, mechanical, UV, and moisture degradation that does not require the owner to manage multiple separate protection programs.

Request a free quote

Compliance

EPS/Polyurea as a Fully Documentable System

Requirement	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Material Standard	Foam classification	Type I / Type II	class	ASTM C578	Defines density/performance baseline	All EPS parts	Use project-appropriate type
Water Absorption Test	Moisture behavior reference	Applicable	test	ASTM C272	Supports durability documentation	Exterior use	Useful for submittals
Surface Burning	Fire performance reference	Classified by assembly	rating	ASTM E84	Important in code review	Commercial/interior conditions	Depends on full assembly
Florida Wind Design	Wind exposure must be engineered	120–180	PSF	Florida Building Code	Critical for exterior approval	Florida projects	Final value depends on site + anchorage
Anchorage Design	Fasteners and substrate must be checked	Project-specific	detail	FBC / engineer of record	Real compliance is in attachment	Exterior elements	Do not rely on foam alone
IBC Coordination	General building code coordination	Required	status	IBC as adopted locally	Ensures broader code consistency	Commercial work	Use local jurisdiction requirements
Flame Retardant EPS	Where required by spec/code	Specify as needed	status	Project spec	Supports fire-related compliance strategy	Commercial/interior use	Verify exact project requirement
Permit Drawings	Dimensions + attachment details	Required	status	Permit process	Needed for approvals	Commercial / HOA / municipal	Prepare submittal set
Engineering Review	Stamped review when required	Required by project	status	Engineer of record	Reduces approval risk	Florida exterior work	Especially high-wind zones
Sealant / Joint Detailing	Weather management in assembly	Required	status	Best practice / project spec	Affects envelope behavior	Exterior joints	Not optional in exposed conditions
Accessibility / Clearance	Products must not conflict with circulation	Project-specific	detail	IBC/ADA as applicable	Field coordination issue	Walkways/entries	Depends on placement
Local Jurisdiction Review	County/city interpretation varies	Required	status	Local AHJ	Must be checked early	All permitted work	Never assume one-size-fits-all

Requirement	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Material Standard	Foam classification	Type I / Type II	class	ASTM C578	Defines density/performance baseline	All EPS parts	Use project-appropriate type
Water Absorption Test	Moisture behavior reference	Applicable	test	ASTM C272	Supports durability documentation	Exterior use	Useful for submittals
Surface Burning	Fire performance reference	Classified by assembly	rating	ASTM E84	Important in code review	Commercial/interior conditions	Depends on full assembly
Florida Wind Design	Wind exposure must be engineered	120–180	PSF	Florida Building Code	Critical for exterior approval	Florida projects	Final value depends on site + anchorage
Anchorage Design	Fasteners and substrate must be checked	Project-specific	detail	FBC / engineer of record	Real compliance is in attachment	Exterior elements	Do not rely on foam alone
IBC Coordination	General building code coordination	Required	status	IBC as adopted locally	Ensures broader code consistency	Commercial work	Use local jurisdiction requirements
Flame Retardant EPS	Where required by spec/code	Specify as needed	status	Project spec	Supports fire-related compliance strategy	Commercial/interior use	Verify exact project requirement
Permit Drawings	Dimensions + attachment details	Required	status	Permit process	Needed for approvals	Commercial / HOA / municipal	Prepare submittal set
Engineering Review	Stamped review when required	Required by project	status	Engineer of record	Reduces approval risk	Florida exterior work	Especially high-wind zones
Sealant / Joint Detailing	Weather management in assembly	Required	status	Best practice / project spec	Affects envelope behavior	Exterior joints	Not optional in exposed conditions
Accessibility / Clearance	Products must not conflict with circulation	Project-specific	detail	IBC/ADA as applicable	Field coordination issue	Walkways/entries	Depends on placement
Local Jurisdiction Review	County/city interpretation varies	Required	status	Local AHJ	Must be checked early	All permitted work	Never assume one-size-fits-all

REGULATORY APPROVAL OF EXTERIOR ARCHITECTURAL ELEMENTS IS NOT A FORMALITY — it is a critical path item in the construction schedule.

Risk Factors:

A rejection from the Authority Having Jurisdiction (AHJ), a request for additional engineering data from the HOA, or a code-compliance question from the plan reviewer can delay a project by weeks, trigger contract penalty clauses, and require the design team to produce documentation under time pressure.

Strategy:

Selecting a material system with a complete, pre-existing compliance package is a direct risk mitigation strategy for the owner, developer, and general contractor.

Technical Standards & Submittals

ASTM Standards:

ASTM C578 classifies EPS foam by type and provides numerical values for density, compressive resistance, flexural strength, and thermal conductivity — the language of structural engineers and code reviewers.
ASTM C272 quantifies water absorption of cellular plastic insulation, providing the test data required for moisture-related code provisions.
ASTM E84 establishes surface burning characteristics for flame spread and smoke development, essential for commercial occupancies and interior code compliance.

Wind Load Requirements:

The Florida Building Code wind load requirements of 120–180 PSF (depending on exposure category and geographic location) are addressed through engineered anchorage design produced by a licensed professional engineer — not generic installation guidelines.

This stands in direct contrast to unstandardized wood assemblies, which have no unified certification system for decorative architectural elements, and to custom fiberglass products that frequently lack third-party material certification entirely.

Submittal Package:

Our company compliance package includes shop drawings with anchorage details, material specifications with ASTM references, engineering calculations for wind load resistance, and safety data sheets for all coating components — everything an AHJ, HOA, or municipal permitting office requires in a single submission.

Client Benefit:

Clients receive a product that passes code review on the first submission, eliminating the cost of re-engineering, resubmission fees, schedule delays, and legal exposure associated with non-compliant installations.

Request a free quote

Cost Efficiency

Total Cost of Ownership Advantage of EPS/Polyurea Over Competing Systems

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Type I Cost Base	Lower-cost core option	1.0	lb/ft³	ASTM C578	Improves entry price	Budget-sensitive decorative work	Use where structurally appropriate
EPS Type II Cost Base	Higher-density core option	2.0	lb/ft³	ASTM C578	Higher material cost but better robustness	Premium / larger pieces	Often better value long-term
Polyurea Usage	Working coating thickness	30–60	mil	Manufacturer spec	Coating is a major cost driver	Exterior elements	Higher mil = higher durability + cost
Weight Savings	System lighter than precast/concrete	Major	advant age	Material comparison	Cuts shipping and handling cost	All projects	A core EPS advantage
Labor Savings	Lighter parts reduce installation labor	2–4 typical	people	Field practice	Speeds site work	Products	Depends on size
Equipment Savings	Often less lifting equipment than heavy materials	Reduced	need	Field practice	Lowers install cost	Retrofit/new construction	Large pieces may still need support
Shipping Efficiency	More pieces per shipment vs heavy masonry	High	rating	Logistics comparison	Improves delivered economics	Regional/national projects	Packaging still matters
Substrate Load Reduction	Lower dead load on structure	High	rating	Engineering logic	Can reduce structural burden	Retrofits/façades	Especially useful on existing buildings
Maintenance Efficiency	No rot and low routine upkeep	High	rating	Lifecycle comparison	Better TCO than some wood systems	Exterior use	Finish maintenance still required
Replacement Cost Risk	Damaged decorative parts can be replaced faster	Medium	rating	Operational logic	Reduces future disruption	Commercial/residential	Depends on attachment access
Customization Economics	CNC shaping is efficient for custom geometries	High	rating	Manufacturing capability	Better than carving stone/wood manually	Custom work	Strong Royal Foam advantage
Lifecycle Value	15–25+ year service potential	15–25+	years	Industry practice	Supports long-term ROI	All elements	With proper finish maintenance

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Type I Cost Base	Lower-cost core option	1.0	lb/ft³	ASTM C578	Improves entry price	Budget-sensitive decorative work	Use where structurally appropriate
EPS Type II Cost Base	Higher-density core option	2.0	lb/ft³	ASTM C578	Higher material cost but better robustness	Premium / larger pieces	Often better value long-term
Polyurea Usage	Working coating thickness	30–60	mil	Manufacturer spec	Coating is a major cost driver	Exterior elements	Higher mil = higher durability + cost
Weight Savings	System lighter than precast/concrete	Major	advant age	Material comparison	Cuts shipping and handling cost	All projects	A core EPS advantage
Labor Savings	Lighter parts reduce installation labor	2–4 typical	people	Field practice	Speeds site work	Products	Depends on size
Equipment Savings	Often less lifting equipment than heavy materials	Reduced	need	Field practice	Lowers install cost	Retrofit/new construction	Large pieces may still need support
Shipping Efficiency	More pieces per shipment vs heavy masonry	High	rating	Logistics comparison	Improves delivered economics	Regional/national projects	Packaging still matters
Substrate Load Reduction	Lower dead load on structure	High	rating	Engineering logic	Can reduce structural burden	Retrofits/façades	Especially useful on existing buildings
Maintenance Efficiency	No rot and low routine upkeep	High	rating	Lifecycle comparison	Better TCO than some wood systems	Exterior use	Finish maintenance still required
Replacement Cost Risk	Damaged decorative parts can be replaced faster	Medium	rating	Operational logic	Reduces future disruption	Commercial/residential	Depends on attachment access
Customization Economics	CNC shaping is efficient for custom geometries	High	rating	Manufacturing capability	Better than carving stone/wood manually	Custom work	Strong Royal Foam advantage
Lifecycle Value	15–25+ year service potential	15–25+	years	Industry practice	Supports long-term ROI	All elements	With proper finish maintenance

TOTAL COST OF OWNERSHIP AS THE TRUE ECONOMIC MEASURE

The economic case for any architectural material system cannot be made on unit purchase price alone.

The total cost of ownership (TCO) integrates:

Procurement
Freight
Handling
Installation labor
Unplanned repair
End-of-life replacement
Equipment rental
Routine maintenance

This applies over the full service life — a horizon of 15–25 years for exterior facade elements. On this complete accounting basis, our company’s EPS/polyurea products consistently outperform every competing material category, including wood, PVC, fiberglass, and precast concrete.

Installation and Freight Economics

Weight Advantage:

Installation economics are driven by weight. At 60–80% less mass than reinforced concrete and natural stone, our company products require:

No crane equipment
No reinforced substructure
No extended cure periods

Labor Efficiency:

A crew of 2–4 workers installs a typical product set in 4–8 hours, compared with multi-day schedules for masonry piers, precast elements assemblies, or cast-in-place concrete.

Freight Efficiency:

Freight economics follow directly: a given truck load carries significantly more EPS product by volume and by count than any masonry or stone alternative, reducing per-unit delivered cost.

CNC Production Efficiency:

CNC fabrication eliminates hand-finishing labor inherent to wood and stone production and produces consistent output with a near-zero defect rate:

No rework
No field modification
No waste from material variability

Custom Geometry Economics:

Custom geometry economics are fundamentally different for EPS/polyurea versus competing systems.

Competing Systems:

Fiberglass custom profiles require fabrication of molds and counter-molds at 2,000–15,000 per profile, with lead times of 3–8 weeks.
PVC custom extrusion dies carry comparable tooling costs.
Wood custom millwork requires specialized equipment, skilled labor, and extended production time.

Long-Term Maintenance Savings:

Long-term maintenance includes major advantages:

No rot means no chemical treatment programs.
No pest control contracts.
No emergency replacement of decayed elements.
Topcoat refinishing every 5–10 years is the only planned maintenance expenditure.
Individual damaged components can be replaced in isolation without disturbing adjacent elements.

Our company Advantage:

With our company, any geometry is milled directly from a digital model at no tooling premium — a single profile or a full production run carries the same per-unit fabrication cost structure.

Final Economic Result

On a 20-year TCO basis, our company delivers the lowest total cost of any equivalent architectural product category.

Request a free quote

Speed of Installation

EPS/Polyurea as a Construction Schedule Compression Tool

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Core Weight	Lighter core speeds handling	1.0 / 2.0	lb/ft³	ASTM C578	Faster movement on site	All elements	Density still light relative to masonry
Coating Cure	Polyurea fast-set production advantage	Fast-set	property	Manufacturer spec	Improves shop throughput	Production phase	Exact cure depends on system
Typical Install Crew	Small crew can often handle installs	2–4	people	Field practice	Supports speed	Most elements jobs	Size-dependent
Typical Install Window	Common field install duration per elements set	4–8	hours	Field estimate	Useful for planning	Standard projects	Complex jobs vary
Prefab Production	Elements sections arrive ready to fit	High	rating	Manufacturing method	Cuts field fabrication	Commercial/residential	Major advantage over site-built
Dry Construction	Less wet-site labor than cast systems	High	rating	Method comparison	Reduces delays	Retrofit/new	Helpful for schedule-sensitive jobs
Reduced Site Cleanup	Lower mess vs heavy masonry work	High	rating	Field comparison	Improves productivity	Occupied sites	Important in retail/hospitality
Simplified Shaping	CNC fabrication speeds custom geometry	High	rating	Manufacturing capability	Fast custom iteration	Custom elements	Supports design agility
Transport Handling	Lighter freight easier to stage	High	rating	Logistics	Speeds unloading	Multi-piece orders	Protect finish during handling
Anchor Prep	Preplanned anchorage reduces field delays	Project-specific	detail	Installation planning	Critical path item	Exterior elements	Coordinate early
Finish Coordination	Factory-finished parts reduce field painting	Optional	strategy	Production planning	Saves on-site time	Projects needing quick turnover	Touch-up may still be needed
Schedule Compression Value	Faster install helps open projects sooner	High	rating	Business impact	Direct client value	Commercial projects	Strong sales argument

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Core Weight	Lighter core speeds handling	1.0 / 2.0	lb/ft³	ASTM C578	Faster movement on site	All elements	Density still light relative to masonry
Coating Cure	Polyurea fast-set production advantage	Fast-set	property	Manufacturer spec	Improves shop throughput	Production phase	Exact cure depends on system
Typical Install Crew	Small crew can often handle installs	2–4	people	Field practice	Supports speed	Most elements jobs	Size-dependent
Typical Install Window	Common field install duration per elements set	4–8	hours	Field estimate	Useful for planning	Standard projects	Complex jobs vary
Prefab Production	Elements sections arrive ready to fit	High	rating	Manufacturing method	Cuts field fabrication	Commercial/residential	Major advantage over site-built
Dry Construction	Less wet-site labor than cast systems	High	rating	Method comparison	Reduces delays	Retrofit/new	Helpful for schedule-sensitive jobs
Reduced Site Cleanup	Lower mess vs heavy masonry work	High	rating	Field comparison	Improves productivity	Occupied sites	Important in retail/hospitality
Simplified Shaping	CNC fabrication speeds custom geometry	High	rating	Manufacturing capability	Fast custom iteration	Custom elements	Supports design agility
Transport Handling	Lighter freight easier to stage	High	rating	Logistics	Speeds unloading	Multi-piece orders	Protect finish during handling
Anchor Prep	Preplanned anchorage reduces field delays	Project-specific	detail	Installation planning	Critical path item	Exterior elements	Coordinate early
Finish Coordination	Factory-finished parts reduce field painting	Optional	strategy	Production planning	Saves on-site time	Projects needing quick turnover	Touch-up may still be needed
Schedule Compression Value	Faster install helps open projects sooner	High	rating	Business impact	Direct client value	Commercial projects	Strong sales argument

IN COMMERCIAL CONSTRUCTION, SCHEDULE COMPRESSION IS A DIRECT REVENUE STRATEGY

Every day of accelerated project delivery reduces financing carrying costs, advances the revenue start date for the completed asset, and reduces general conditions expenditure — site supervision, temporary facilities, and overhead.

Facade element installation is frequently a schedule-critical activity: it gates exterior envelope closure, painting, and final inspections.

The material system selected for architectural products therefore has a direct and quantifiable impact on project economics, not just on installed appearance.

OUR COMPANY PREFABRICATED PRODUCTS ARRIVE ON SITE FULLY PROCESSED: EPS-SHAPED, POLYUREA-COATED, PRIMED, AND FINISH-COATED

There is no formwork to build, no concrete to pour, no cure period to observe, no wet-trade sequencing to coordinate.

Fast-cure polyurea coating systems reduce factory finishing cycle time to hours per production run — a throughput rate that fiberglass laminating and wood finishing operations cannot match.

Installation Comparison:

A typical installation of a complete product set requires a crew of 2–4 workers and 4–8 hours of on-site labor, versus multi-day or multi-week schedules for masonry piers, precast assemblies, or site-built wood elements.
The dry-installation method eliminates weather-dependent cure windows that routinely extend wet-trade schedules in high-humidity and rain-prone environments.

CNC FABRICATION PROVIDES AN ADDITIONAL SCHEDULE ADVANTAGE AT THE DESIGN STAGE

Custom profile geometry is produced by modifying a digital model and initiating a milling run — a process measured in hours, not the weeks required to fabricate new fiberglass molds or commission custom extrusion tooling.

When design changes occur late in the project timeline, Royal Foam can respond without a schedule penalty.

Logistics & ROI:

Prefabrication also reduces site congestion: fewer trades, less equipment, and a compressed installation window mean that other parallel activities on the critical path are not disrupted.
Clients receive a measurable construction schedule advantage, a documented reduction in general conditions cost during facade installation, and earlier building turnover — all direct contributions to project-level return on investment.

Request a free quote

Customization

EPS/Polyurea Delivers Design Freedom Unavailable in Competing Systems

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
Diameter Options	Round/square/tapered sizing flexibility	10–36+	in	Project drawings	Supports many styles	All elements	Custom sizes possible
Height Options	Custom overall height capability	8–24	ft	Project drawings	Allows project-specific proportioning	Entries/porticos	Segmented builds for taller elements
Elements Styles	Doric, Ionic, Corinthian, Tuscan, custom	Custom	style	Architectural intent	Expands design appeal	Classical/custom work	Major differentiator
Elements Styles	Multiple elements profiles	Custom	style	Architectural intent	Supports architectural fit	All elements	Can match existing conditions
Elements Geometry	Round, square, fluted, tapered, smooth	Custom	geometry	Design drawings	Wide spec range	Commercial/residential	CNC-enabled
Texture Options	Smooth, stone, faux finishes	Custom	finish	Project spec	Improves design flexibility	Premium façades	Depends on finish system
Color Options	Painted to project palette	Custom	color	Paint spec	Brand/architectural matching	All visible work	Color affects maintenance cycle
Split / Wrap Options	Elements can be made as wraps around existing posts	Available	configuration	Manufacturing capability	Great for retrofit	Renovation work	Strong practical value
Multi-Part Fabrication	Large elements built in sections	Available	method	Manufacturing method	Makes shipping/install practical	Oversized elements	Joint detailing matters
Matching Existing Architecture	Custom profiles from photos/drawings	Available	service	Design workflow	High-value service for restoration	Historic/custom homes	Premium offering
Integrated Decorative Bands	Add rings, reveals, trim features	Custom	feature	Design drawings	Boosts visual distinction	Luxury/commercial	Good upsell
Specification Flexibility	Can tailor density, coat, finish, attachment	Project-specific	package	Project requirements	Lets product match use case	B2B specifications	Important for architects

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
Diameter Options	Round/square/tapered sizing flexibility	10–36+	in	Project drawings	Supports many styles	All elements	Custom sizes possible
Height Options	Custom overall height capability	8–24	ft	Project drawings	Allows project-specific proportioning	Entries/porticos	Segmented builds for taller elements
Elements Styles	Doric, Ionic, Corinthian, Tuscan, custom	Custom	style	Architectural intent	Expands design appeal	Classical/custom work	Major differentiator
Elements Styles	Multiple elements profiles	Custom	style	Architectural intent	Supports architectural fit	All elements	Can match existing conditions
Elements Geometry	Round, square, fluted, tapered, smooth	Custom	geometry	Design drawings	Wide spec range	Commercial/residential	CNC-enabled
Texture Options	Smooth, stone, faux finishes	Custom	finish	Project spec	Improves design flexibility	Premium façades	Depends on finish system
Color Options	Painted to project palette	Custom	color	Paint spec	Brand/architectural matching	All visible work	Color affects maintenance cycle
Split / Wrap Options	Elements can be made as wraps around existing posts	Available	configuration	Manufacturing capability	Great for retrofit	Renovation work	Strong practical value
Multi-Part Fabrication	Large elements built in sections	Available	method	Manufacturing method	Makes shipping/install practical	Oversized elements	Joint detailing matters
Matching Existing Architecture	Custom profiles from photos/drawings	Available	service	Design workflow	High-value service for restoration	Historic/custom homes	Premium offering
Integrated Decorative Bands	Add rings, reveals, trim features	Custom	feature	Design drawings	Boosts visual distinction	Luxury/commercial	Good upsell
Specification Flexibility	Can tailor density, coat, finish, attachment	Project-specific	package	Project requirements	Lets product match use case	B2B specifications	Important for architects

CUSTOMIZATION IS BUILT INTO THE PROCESS

Architectural customization is not a feature added to the EPS/polyurea production process — it is inherent to the CNC milling technology on which the process is elements.

A CNC mill operates from a three-dimensional digital model and reproduces any geometry the model defines, at the same per-unit cost regardless of profile complexity.

Manufacturing Advantages:

No tooling penalty for unique geometry.
No minimum run size for custom profiles.
No dimensional constraint imposed by the manufacturing process itself.

WIDE GEOMETRIC AND SURFACE CAPABILITIES PRECISION REPRODUCTION

The practical range of geometric parameters is extensive.
Architectural orders — Doric, Ionic, Corinthian, Tuscan, and composite — are reproduced from measured drawings or high-resolution reference photography to profile tolerances of ±3 mm.

Contemporary and proprietary profiles developed by the project architect are produced directly from CAD files without intermediate tooling.

Dimensional Range:

Dimensional range extends from slender decorative elements to large-scale architectural components exceeding 900 mm in cross-section and 7.3 m in height, fabricated in interlocking segments for shipping and field assembly.

Surface Treatments

Surface treatments include:

Smooth paint-ready finishes.
Faux stone textures.
Custom tactile profiles.
Applied decorative bands.

All achievable within the same production system.

Renovation and Wrap Applications

The wrap configuration — EPS/polyurea cladding fabricated to enclose an existing structural post or elements — extends the application of Royal Foam products to renovation and restoration work where structural elements are already in place.

This single capability addresses a major gap in the competing product range: Fiberglass and PVC do not offer field-adaptable wrap systems.

Wood wraps are limited by available lumber dimensions and remain vulnerable to the same decay mechanisms as solid wood elements.

Direct Competitive Comparison

Custom fiberglass profiles require mold fabrication at $2,000–
15,000 per profile with 3–8 week lead times.

Custom PVC requires extrusion die investment with comparable cost and timeline.

Custom stone or wood millwork involves manual production at hourly craft rates with high variability.

Our company custom product is priced and scheduled on the same basis as standard product.

Final Client Benefit

Clients receive architectural elements that precisely match the design specification:

No dimensional compromise.
No design simplification.
No cost penalty for doing the project right.

Request a free quote

Engineering

EPS/Polyurea as a Fully Designable Technical System

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density Selection	Engineering starts with correct foam density	1.0 / 2.0	lb/ft³	ASTM C578	Affects compression and handling	All elements	Specify by use case
Wind Load Design	Exterior performance target	120–180	PSF	Florida Building Code	Critical engineering driver	Florida elements	Depends on exposure + anchorage
Polyurea Thickness	Protective shell design range	30–60	mil	Manufacturer spec	Major role in surface performance	Exterior elements	Royal Foam Working Range
Compressive Strength	Density-dependent EPS resistance	Approx. 10–25	psi	ASTM C578	Useful baseline for core behavior	All elements	Higher density generally stronger
Attachment Design	Anchorage must transfer real loads	Project-specific	detail	Engineer of record	Most important structural detail	Exterior installs	Substrate governs solution
Substrate Review	CMU, wood, steel, concrete behave differently	Required	status	Engineering practice	Controls fastener design	Retrofit/new	Always verify field conditions
Joint Engineering	Section seams need bonding + sealing	Required	status	Installation best practice	Affects long-term integrity	Tall/segmented elements	Do not treat as cosmetic only
Tolerance Control	Shop precision improves fit and appearance	±1/8 typical	in	QC practice	Reduces rework	Custom elements	Important for wrap installs
CAD / CNC Workflow	Digital production supports repeatability	Yes	capability	Manufacturing workflow	Higher accuracy and customization	All custom work	A major differentiator
Detailing Package	Shop drawings/sections/install details	Available	service	Project workflow	Speeds approvals + install	B2B projects	Valuable for architects/GCs
Value Engineering	System can be optimized by density/coat/detail	Available	service	Engineering workflow	Improves budget-performance balance	Commercial projects	Strong sales tool
Field Coordination	Engineering must match actual site conditions	Required	status	Construction practice	Prevents failures and delays	Every project	Never skip verification

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density Selection	Engineering starts with correct foam density	1.0 / 2.0	lb/ft³	ASTM C578	Affects compression and handling	All elements	Specify by use case
Wind Load Design	Exterior performance target	120–180	PSF	Florida Building Code	Critical engineering driver	Florida elements	Depends on exposure + anchorage
Polyurea Thickness	Protective shell design range	30–60	mil	Manufacturer spec	Major role in surface performance	Exterior elements	Royal Foam Working Range
Compressive Strength	Density-dependent EPS resistance	Approx. 10–25	psi	ASTM C578	Useful baseline for core behavior	All elements	Higher density generally stronger
Attachment Design	Anchorage must transfer real loads	Project-specific	detail	Engineer of record	Most important structural detail	Exterior installs	Substrate governs solution
Substrate Review	CMU, wood, steel, concrete behave differently	Required	status	Engineering practice	Controls fastener design	Retrofit/new	Always verify field conditions
Joint Engineering	Section seams need bonding + sealing	Required	status	Installation best practice	Affects long-term integrity	Tall/segmented elements	Do not treat as cosmetic only
Tolerance Control	Shop precision improves fit and appearance	±1/8 typical	in	QC practice	Reduces rework	Custom elements	Important for wrap installs
CAD / CNC Workflow	Digital production supports repeatability	Yes	capability	Manufacturing workflow	Higher accuracy and customization	All custom work	A major differentiator
Detailing Package	Shop drawings/sections/install details	Available	service	Project workflow	Speeds approvals + install	B2B projects	Valuable for architects/GCs
Value Engineering	System can be optimized by density/coat/detail	Available	service	Engineering workflow	Improves budget-performance balance	Commercial projects	Strong sales tool
Field Coordination	Engineering must match actual site conditions	Required	status	Construction practice	Prevents failures and delays	Every project	Never skip verification

Documentability as the Core Engineering Criterion

The defining criterion for material selection in engineered construction is documentability: the ability to assign specific, defensible numerical values to material properties, use those values in structural calculations, and have the resulting design reviewed and approved by a licensed engineer and the Authority Having Jurisdiction.

Why Competing Materials Fall Short

WOOD: Wood fails this criterion for decorative architectural elements because its properties vary by species, moisture content, grain orientation, and defect distribution. Reference standards such as the NDS provide design value ranges, not precise values.
FIBERGLASS: Custom fiberglass often fails because the fabricator cannot provide certified laminate property data for third-party engineering review.
PVC: PVC is classified as a non-structural thermoplastic and is not used in engineered resistance calculations for wind or gravity loads.

EPS/polyurea is the only system in this competitive set that can be fully characterized, parameterically adjusted, and submitted to engineering review with complete material documentation.

PARAMETER-BASED ENGINEERING DESIGN

Our company system is engineered by parameter selection, not by default.

EPS Core Selection:

Type I: 1.0 lb/ft³, compressive resistance approximately 10 psi per ASTM C578.
Type II: 2.0 lb/ft³, compressive resistance approximately 25 psi.

Selection is based on service load requirements, exposure conditions, and substrate configuration.

POLYUREA SPECIFICATION

Polyurea coating thickness is specified in the range of 30–60 mils based on:

Impact exposure

Moisture risk classification.
Durability requirements for the specific installation.
Anchorage Engineering.

Anchorage Engineering

Anchorage design is produced by the engineer of record, with fastener type, spacing, and embedment depth calculated for wind pressures of 120–180 PSF per the Florida Building Code, accounting for: CMU, Wood framing, Structural steel, Cast concrete, Element geometry, and Digital Accuracy.

CAD/CNC digital workflow ensures that fabricated geometry matches the engineered drawings to ±3 mm tolerance across every unit in the production run.

COMPLETE DOCUMENTATION PACKAGE

Our company technical documentation package includes:

Shop drawings with all anchorage details and section cuts.
Complete material specification with ASTM standard references for every component.
Engineering calculations stamped by a Florida-licensed professional engineer when required.
Installation guidelines coordinated with AHJ submittal requirements.

CLIENT AND APPROVAL BENEFITS

This package allows a structural engineer of record to defend the installation to any reviewing authority, and allows the owner to verify that the installed system performs to its calculated wind resistance rating specification.

Clients do not receive a product — they receive a fully engineered system with documented design basis, traceable material properties, and professional engineering accountability at every level of the specification.

Request a free quote

Aesthetics

EPS/Polyurea as a Fully Designable Technical System

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density	Core density affects dent resistance	1.0 / 2.0	b/ft³	ASTM C578	Higher density improves robustness	All elements	2.0 better where abuse is higher
Polyurea Thickness	Primary hard coat thickness	30–60	mil	Manufacturer spec	Major durability driver	Exterior elements	Royal Foam Working Range
Water Absorption	EPS water absorption	Low	qualitative	ASTM C272	Helps in humid environments	Exterior/interior	System still needs sealed finish
Moisture Resistance	Coated system resists rain splash	High	rating	Finish system	Florida suitability	Exterior elements	Seams must be sealed
UV Exposure	Finish must resist sun degradation	Requires topcoat	system	Paint spec	Affects color life	Exterior in Florida	Polyurea should be topcoated
Impact Resistance	Coating helps resist minor impact	Medium to high	rating	Coating spec	Important at pedestrian level	Retail/commercial	Not equivalent to solid concrete
Crack Control	Joint detailing reduces cracking risk	Project-specific	detail	Installation best practice	Preserves appearance	Segmented builds	Movement joints may be needed
Abrasion Resistance	Hard shell resists scuffing	High	rating	Coating spec	Useful in touch-prone areas	Entry elements	Depends on finish quality
Biological Resistance	EPS does not rot like wood	High	rating	Material property	Lowers maintenance	Exterior/interior	Still protect finish required
Corrosion Resistance	Foam shell will not rust	High	rating	Material property	Advantage over unprotected steel skins	Humid/coastal areas	Anchors may still require protection
Maintenance Cycle	Repaint/reseal as needed	5–10 typical	years	Paint maintenance	Extends service life	Exterior projects	Climate + color affect cycle
Service Life	Expected full-system life	15–25+	years	Industry practice	Supports lifecycle value	All elements	Assumes proper installation

Factor	Description	Value	Unit	Standard/Code	Impact	Application	Notes
EPS Density	Core density affects dent resistance	1.0 / 2.0	b/ft³	ASTM C578	Higher density improves robustness	All elements	2.0 better where abuse is higher
Polyurea Thickness	Primary hard coat thickness	30–60	mil	Manufacturer spec	Major durability driver	Exterior elements	Royal Foam Working Range
Water Absorption	EPS water absorption	Low	qualitative	ASTM C272	Helps in humid environments	Exterior/interior	System still needs sealed finish
Moisture Resistance	Coated system resists rain splash	High	rating	Finish system	Florida suitability	Exterior elements	Seams must be sealed
UV Exposure	Finish must resist sun degradation	Requires topcoat	system	Paint spec	Affects color life	Exterior in Florida	Polyurea should be topcoated
Impact Resistance	Coating helps resist minor impact	Medium to high	rating	Coating spec	Important at pedestrian level	Retail/commercial	Not equivalent to solid concrete
Crack Control	Joint detailing reduces cracking risk	Project-specific	detail	Installation best practice	Preserves appearance	Segmented builds	Movement joints may be needed
Abrasion Resistance	Hard shell resists scuffing	High	rating	Coating spec	Useful in touch-prone areas	Entry elements	Depends on finish quality
Biological Resistance	EPS does not rot like wood	High	rating	Material property	Lowers maintenance	Exterior/interior	Still protect finish required
Corrosion Resistance	Foam shell will not rust	High	rating	Material property	Advantage over unprotected steel skins	Humid/coastal areas	Anchors may still require protection
Maintenance Cycle	Repaint/reseal as needed	5–10 typical	years	Paint maintenance	Extends service life	Exterior projects	Climate + color affect cycle
Service Life	Expected full-system life	15–25+	years	Industry practice	Supports lifecycle value	All elements	Assumes proper installation

Aesthetics as an Economic Variable

Architectural aesthetics function as a measurable economic variable. Studies of the U.S. commercial and residential real estate market consistently demonstrate that high-quality facade detailing:

Increases perceived property value by 5–15%.
Reduces time-on-market for sale or lease transactions.

For developers and property owners, the selection of architectural products that deliver premium visual quality is not a design preference — it is a elements allocation decision with a calculable return.

Our company products are specified for this reason by architects, developers, and restoration professionals who understand that facade quality is directly priced by the market.

PRECISION ARCHITECTURAL REPRODUCTION

Our company architectural products reproduce classical and contemporary architectural language at a level of precision that competing systems cannot achieve in production.

Geometry Quality

Capital and base projection geometry — the shadow-casting elements that establish architectural order and visual hierarchy — is milled to profile depths of 25–150 mm with edge sharpness and symmetry that extrusion, laminating, or handwork cannot consistently replicate at scale.

Surface Quality

The surface is delivered:

Smooth.
Pore-free.
Free of process artifacts.
No exposed glass fiber.
No resin streaking.
No tool marks.
No grain telegraphing through the finish.

This surface quality is essential for:

High-specular architectural paint systems.
Professional photography of the completed building.
Architectural uplighting.

All of which depend on a defect-free substrate to perform as designed.

Proportion and Design Consistency

Proportion control — the ratio of elements projection that defines architectural order — is maintained by digital model and CNC production, not by skilled tradesperson judgment.

This means that every unit in a project, regardless of production sequence or crew, matches the architect’s specified proportions exactly.

Surface and Color Flexibility

Surface texture options extend from smooth through faux stone to fully custom tactile profiles, allowing the facade system to match the material language of the broader architectural composition.

Color specification is unlimited — any RAL, Munsell, or custom mixed topcoat can be applied to the polyurea shell, providing exact palette coordination with adjacent facade materials.

Final Market Benefit

Clients receive a finished architectural product that:

Strengthens the developer’s brand identity.
Supports premium pricing.
Supports higher occupancy rates for the completed asset.

Delivers long-term visual impact that does not degrade with age under normal service and maintenance conditions.

Request a free quote

CSI MasterFormat

Technical specification

Download PDF

General Information

1. Summary

CSI Master Format Section 06 60 00 — Plastic Fabrications / Architectural Foam Systems

Unless specifically engineered and documented by a licensed structural engineer, decorative products specified in this section are non-structural architectural elements and shall not be considered primary load-bearing components.

This section specifies requirements for custom fabricated architectural foam systems manufactured by our company, Jacksonville, Florida.

1.1 Applications

Products are designed for:

Commercial construction
Institutional construction
Hospitality construction
Retail construction
Residential construction

1.2 System Composition

All systems consist of:

Engineered foam cores — Expanded Polystyrene (EPS), Polyurethane (PU/PIR), or hybrid composite configurations
High-performance polyurea elastomer protective coatings
Exterior architectural finish systems

Systems included in this section:

Component	Description	Value	Unit
EPS Core	Primary shaped body	1.0 / 2.0	lb/ft³
Adhesive Layer	Laminates foam sections	Construction-grade	system
Polyurea Shell	Primary hard protective coat	30–60	mil
Base Primer	Promotes coating bond	1 coat	layer
Finish Coat	Paint or decorative finish	2 coats	layer
Products	Top architectural element	Custom	dimension
Products	Main cylindrical/tapered body	Custom	dimension

2 Basis Of Design

Design of all architectural foam systems specified herein is based on products manufactured and engineered by our company, Jacksonville, Florida, USA.

Our company operates as:

An engineering-driven manufacturing platform
Over 25 years of experience
10,000+ completed projects

In-house capability for:

Structural design
CNC fabrication
Polyurea coating
Full project lifecycle support

Category	Details
Manufacturer	Decorative Architectural Shapes
Headquarters	4225 James E Casey Dr, Unit #5 Westside Industrial Park, Jacksonville, FL 32219
Engineering Experience	25+ years / 10,000+ projects
Production Capability	CNC hot-wire EPS cutting, precision 3D routing, high-pressure polyurea spray systems
Market Served	Commercial, institutional, hospitality, retail, residential — nationwide B2B
Delivery Capability	Nationwide; typical lead time 7–14 business days

Quality Assurance

Lightweight

Up to 90% lighter than stone or precast concrete

Impact Resistance

Mechanical impact · surface abrasion · installation damage

Weather Resistance

Moisture · freeze-thaw · UV
degradation · thermal

Long-term Durability

Structural integrity under exterior
commercial conditions

Coastal Compatible

High humidity · salt exposure · elevated UV radiation

3 Related Sections — Coordination

03 30 00 Cast-in-Place Concrete — substrate and support structures
05 12 00 Structural Steel Framing — internal armatures for large-scale elements
06 10 00 Rough Carpentry — wood nailers, blocking, backing substrates
07 21 00 Thermal Insulation — coordinate where foam serves dual thermal/ architectural function
07 24 00 Exterior Insulation & Finish Systems (EIFS) — coordinate with façade panel systems
07 92 00 Joint Sealants — perimeter and joint sealing at architectural foam elements
09 24 00 Portland Cement Stucco — alternate finish coat over polyurea base
09 90 00 Painting and Coating Systems — finish coat color matching
10 14 00 Signage — coordinate with monument sign and 3D branding elements
12 36 00 Countertops — coordinate where custom foam elements integrate with millwork

4 References & Applicable Standards

ASTM C578 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation — Types I through XV
ASTM D6817 Standard Specification for Rigid Cellular Polystyrene Geofoam
ASTM C591 Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
ASTM C1029 Standard Specification for Spray-Applied Rigid Cellular Polyurethane Thermal Insulation
ASTM D1621 Standard Test Method for Compressive Properties of Rigid Cellular Plastics
ASTM D1623 Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics
ASTM C273 Standard Test Method for Shear Properties of Sandwich Core Materials
ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers — Tension
ASTM D2240 Standard Test Method for Rubber Property — Durometer Hardness
ASTM D4541 Standard Test Method for Pull-Off Strength of Coatings
ASTM D4065 Standard Practice for Plastics — Classification — Application of Polyurea Coating Systems
ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials (Tunnel Test)
ASTM E90 Standard Test Method for Laboratory Measurement of Airborne Sound Attenuation of Building Partitions
ASTM C423 Standard Test Method for Sound Absorption and Sound Absorption Coefficients
ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
ASTM C518 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
ASCE 7-22 Minimum Design Loads and Associated Criteria for Buildings and Other Structures
IBC 2021 International Building Code — Section 2603: Foam Plastic Insulation
IFC 2021 International Fire Code
ICC-ES AC71 Acceptance Criteria for Foam Plastic Insulation in Continuous Insulation Applications
NFPA 101 Life Safety Code
FM 4474 Approval Standard for Evaluating the Simulated Wind Uplift Resistance of Roof Assemblies
CSI Master Format 2016 Edition — Division 06 Wood, Plastics, and Composites

5 Performance Requirements — All Systems

Structural Performance

All architectural foam systems shall be designed and fabricated to withstand applicable structural loads including:

Self-weight
Installation loads
Wind-induced pressures
Impact loads appropriate to the application and occupancy

Systems required to resist wind loads shall comply with ASCE 7-22 for the design wind speed and exposure category of the project site.
Structural calculations shall be prepared by a licensed Professional Engineer where required by the Authority Having Jurisdiction (AHJ).

Wind Load Resistance

Exterior architectural elements shall be designed for component and cladding (C&C) wind pressures per ASCE 7-22 Chapter 30.
Attachment systems, fastener schedules, and foam core shear/compressive strength shall be verified against design wind pressures with a minimum safety factor of 3.0 per ICC-ES AC71.

FM-rated assemblies shall be provided where required by insurer or AHJ.

Refer to Part 4 — Wind Load Reference Data.

Thermal Performance

Where foam elements serve a thermal insulation function, R-values shall comply with the energy code requirements of the applicable jurisdiction.

EPS Type II (1.35 pcf) provides R-4.17 per inch
EPS Type IX (1.80 pcf) provides R-4.35 per inch
PU closed-cell systems provide R-6.0 to R-6.5 per inch per ASTM C518 at 75°F

Thermal Performance

Polyurea protective coating system shall provide a continuous waterproof membrane over all exposed foam surfaces.
Coating system shall resist:

Moisture penetration
Freeze-thaw cycling
UV degradation

Water vapor permeance of coating system shall be compatible with wall assembly vapor control requirements.

Coastal and high-humidity installations shall specify enhanced UV-stable exterior finish coatings.

Acoustic Performance

Where acoustic separation or sound control is required, foam systems shall be specified in conjunction with appropriate wall/floor/ceiling assemblies.

Open-cell polyurethane spray foam provides NRC 0.70–0.95 at 2″–4″ thickness
For assemblies required to achieve STC 50 per IBC Section 1207, foam fill shall be used in conjunction with appropriate framing, gypsum wallboard, and resilient channel systems
Refer to Part 4 — Acoustic Performance Data.

Dimensional Stability

Foam core materials shall maintain dimensional stability under the full range of service temperatures anticipated at the project location.

EPS materials shall comply with ASTM C578 requirements for dimensional stability
Polyurea coating system shall accommodate thermal expansion and contraction without cracking, delamination, or loss of adhesion over the service life of the installation

Impact & Abrasion Resistance

Polyurea coating system shall provide:

Shore D hardness ≥ 55 per ASTM D2240
Tensile strength of coating ≥ 2,500 psi per ASTM D412
Elongation at break ≥ 200% per ASTM D412
Adhesion to EPS substrate ≥ 250 psi pull-off strength per ASTM D4541

UV Stability

Exterior finish coating systems shall be UV-stable and shall not exhibit:

Significant color shift
Chalking
Loss of gloss under accelerated UV weathering per ASTM G154.

All foam materials shall be protected from direct UV exposure within 30 days of installation by application of appropriate finish coatings or cladding systems.

Weight Efficiency

Architectural foam systems shall provide weight reduction of up to 90 percent compared to equivalent stone, precast concrete, or cast stone elements, thereby reducing structural dead loads and facilitating accelerated installation.

6 Submittals

Product Data

Manufacturer technical documentation including material composition, density range, fabrication process description, coating system data sheets, and installation guidelines.

Include ASTM test reports for EPS (C578), polyurea coating (D412, D2240, D4541, E84), and thermal performance (C518) as applicable.

Shop Drawings

Project-specific shop drawings for each custom element.

Include plan, elevation, and section views with all dimensions; connection and attachment details; internal armature or mounting hardware; joint locations and configurations; and installation sequence.

Engineering Calculations

Where required by project specifications or AHJ: structural calculations by licensed PE verifying foam core adequacy, attachment capacity, and wind load resistance.

Include design wind speed, exposure category, and C&C pressure calculations per ASCE 7-22.

Astm E84 Test Reports

Current ASTM E84 flame spread and smoke developed test reports for foam and coating system as installed, at the thickness and density specified.

Samples

Finish coating samples on minimum 6″ x 6″ EPS substrate, illustrating texture, color, and sheen level. Provide color range samples where multiple finish options are offered.

Warranty Documentation

Executed warranty document per Section 1.10 prior to Substantial Completion.

7 Quality Assurance

Manufacturer shall be a firm with not less than 10 years of continuous experience fabricating custom architectural foam elements for commercial construction projects. Manufacturer shall demonstrate the following in-house capabilities:

CNC hot-wire EPS cutting systems capable of producing complex three-dimensional profiles.
Precision multi-axis CNC routing and profiling equipment.
High-pressure plural-component polyurea spray coating systems.
In-house structural design and CAD/3D modeling capability.
Direct collaboration capability with project architects, engineers, and contractors.
Quality management system with documented inspection procedures at each production stage.
Capability to provide design modifications during production without schedule impact.
Pre-assembled delivery systems reducing field installation cost and time.

8 Delivery, Storage & Handling

Deliver products in manufacturer’s packaging with identification labels intact. Inspect upon delivery and document any damage before accepting shipment.
Store foam elements in a dry, sheltered location protected from precipitation, direct sunlight, and temperatures below -20°F or above 140°F. Store flat on clean, level supports. Do not stack elements in a manner that causes deformation or surface damage.
Free product storage at our manufacturing facility is available for clients not yet ready for installation — contact us for terms.
Handle elements with clean gloves or padding to prevent surface damage to finish coatings. Do not drag elements on abrasive surfaces.

9 Warranty

Decorative Architectural Shapes warrants that products furnished under this section shall be free from defects in:

materials
fabrication

for a period of:

5 years from the date of Substantial Completion for standard systems
10 years for enhanced coating systems

against delamination of polyurea coating from EPS substrate under normal service conditions.

Warranty Excludes Damage From:

improper installation
vandalism
impact beyond design parameters
chemical exposure not specified
UV degradation where finish coating is not maintained per manufacturer recommendations.

General Disclaimer — Limitation Of Liability

The preparers of this document make no representations or warranties, express or implied, as to the accuracy, completeness, currentness, or suitability of any information contained herein for any particular application.

Building codes, material requirements, allowable loads, fire safety classifications, acoustic performance standards, and wind load provisions vary significantly by:

state,
county,
municipality,
and local jurisdiction,
and are subject to change with adoption of new code editions or local amendments.

This document does not constitute:

an engineering report,
professional design document,
certified test report,
code compliance determination,
or legally binding specification of any kind.

The preparers, authors, and distributors of this document expressly disclaim any and all liability for any loss, damage, claim, or expense — direct, indirect, incidental, or consequential — arising from the use of or reliance on any information contained herein.

Download

Copy information

Products

Eps Core Material — Properties By Astm Type & Density

EPS core material shall comply with ASTM C578. Select density type based on design loads, coating system, and project performance requirements.

ASTM Type	Nom. Density (lb/ft³)	Compressive Str. 10% (psi)	Flexural Str. (psi)	Shear Str. (psi)	R-value/ inch	Typical Application
Type I (EPS15)	0.90–1.14	10–14	25–30	18–22	3.85	General decorative elements, signage cores, interior applications
Type VIII (EPS19)	1.15–1.34	13–18	30–38	23–25	3.92	Moderate-load decorative elements, exterior columns ≤30 ft
Type II (EPS22)	1.35–1.79	15–21	40–50	26–32	4.17	Standard exterior architectural elements, SIP cores, façade panels
Type IX (EPS29)	1.80–2.20	25–33	50–75	33–37	4.35	High-load columns, roofing elements, wind zone 3+ applications
Type XIV (EPS39)	2.40–2.80	35–50	60–90	40–48	4.50	Heavy structural panels, bridge deck formwork, extreme wind zones
Type XV (EPS46)	2.80–3.50	50–75	75–110	48–60	4.60	Maximum structural demand; SIP cores for hurricane-rated assemblies

Polyurethane / Pir Core Material — Properties By Type

Type / Standard	Density (lb/ft³)	Cell Type	Compressive Str. 10% (psi)	R-value/ inch	Primary Use
PU Open-cell SPF (ASTM C1029 Type I)	0.4–0.6	Open	0.1–0.5	3.7	Cavity fill, air sealing, acoustic absorption (NRC 0.70–0.95)
PU Closed-cell SPF (ASTM C1029 Type II)	1.5–2.0	Closed	20–35	6.2	Continuous insulation, air/vapor barrier, structural cavity fill
Rigid PU/PIR (ASTM C591 Type II)	2.5	Closed	35	6.1	High-R ci panels, roof insulation, structural panels
Rigid PU/PIR (ASTM C591 Type III)	3.0	Closed	45	6.3	High-load ci, commercial roofing, hurricane-zone applications
HD Rigid PU (ASTM C591 Type VI)	6.0	Closed	125	5.8	Industrial, cold storage, maximum structural demand

Protective Polyurea Coating System

Polyurea protective coating shall be a 100% solids, two-component, aromatic or aliphatic polyurea elastomer system applied by high-pressure, heated plural-component spray quipment. Coating shall be applied to all exposed EPS or PU foam surfaces prior to application of architectural finish coats..

Property	Test Method	Requirement	Unit
Coating Thickness — Standard	DFT gauge	20–40	mil
Coating Thickness — Heavy-duty	DFT gauge	60–120	mil
Tensile Strength (min.)	ASTM D412	≥ 2,500	psi
Elongation at Break (min.)	ASTM D412	≥ 200	%
Shore D Hardness	ASTM D2240	55–75	—
Adhesion to EPS — Pull-off (min.)	ASTM D4541	≥ 250	psi
Flame Spread Index (max.)	ASTM E84	≤ 25	—
Smoke Developed Index (max.)	ASTM E84	≤ 450	—
UV Weathering Resistance	ASTM G154	Pass — 1,000 hr min	—
Water Absorption (max.)	ASTM D570	≤ 1	% by weight
Service Temperature Range	—	-40 to +200	°F
Gel Time (fast system)	—	3–7	seconds
Tack-Free Time	—	< 30	seconds

Product Category Specifications

Architectural Columns

Types: Round, Square, Tapered (entasis), Classical Orders (Doric, Ionic, Corinthian, Tuscan, Composite)
Diameter range: 4 inches to 60 inches; custom sizes available
Height: up to 40 feet in sectional assembly; single-piece up to 14 feet
Core: EPS Type II minimum (Type IX recommended for exterior/coastal); PU/PIR available on request
Sections: single-piece or sectional with concealed staggered slip-joint connections
Bases and capitals: integrated or separate; classical profiles per architect’s drawings
Internal reinforcement: steel pipe armature available for structural continuity where required by PE
Finish: polyurea base coat + exterior architectural topcoat; smooth, textured, or custom profiles
Applications: porticos, colonnades, entryways, façade features, resort/hospitality, monument structures

Decorative Beams, Brackets & Corbels

Types: exposed ceiling beams, faux timber posts, wall brackets, structural-look corbels, rafter tails
Profiles: rectangular, tapered, hand-hewn texture, smooth architectural, custom cross-sections
Dimensions: custom per drawings; typical spans up to 20 feet in single piece
Core: EPS Type II or Type IX depending on exposed span and load requirements
Surface: textured polyurea replicating wood grain, stone, or custom architectural finish
Hollow or solid construction; hollow beams suitable for concealed electrical/mechanical routing
Mounting: internal blocking nailers or through-bolt attachment systems per structural requirements

Facade Panels & Cladding Systems

Types: flat insulated panels, profiled architectural panels, lap siding profiles, wainscot systems
Core: EPS Type II or Type IX; PU/PIR closed-cell for high-R applications
Panel size: custom to project; standard modules available; maximum CNC billet size 36″x48″x192″
Thermal performance: R-8 to R-30+ depending on core type and thickness
Surface: textured polyurea + exterior architectural finish; faux stone, brick, wood, or smooth
Attachment: mechanical fastener systems per ICC-ES AC71; adhesive-mechanical hybrid available
Wind load compliance: design per ASCE 7-22 with engineering calculations provided by Royal Foam

Cornices, Moldings, Trim & Surrounds

Types: crown molding, bed molding, band molding, window surrounds, door surrounds, keystones
Profile library: classical profiles plus full custom CNC-profiled geometry per architect’s drawings
Core: EPS Type I minimum; Type II recommended for exterior applications
Typical thickness range: 1 inch to 12 inches projection; lengths to 20 feet
Joints: mitered, scarfed, or overlapping; sealed with compatible flexible sealant
Finish: smooth painted, textured stucco-look, stone-replicated, or custom architectural coatings
Compatibility with EIFS, stucco, painted wood, and standard exterior finish systems

Monument Signs & 3D Branding Structures

Types: freestanding monument signs, dimensional lettering, 3D logo structures, entry pylons
Core: EPS or PU/PIR depending on structural requirements and exposure conditions
Dimensional lettering: any font, any size; maximum practical height 8 feet per letter
Sign cabinet depth: custom from 2 inches to 36 inches relief
Surface: polyurea base + paint/coating for weather resistance; illumination cutouts available
Internal steel armature and base plate anchor systems per structural engineer’s drawings
Applications: retail, hospitality, real estate, institutional, municipal entry features

Faux Material Systems

Faux Wood: EPS or PU core with hand-textured polyurea replicating cedar, oak, pine, weathered timber
Faux Stone: irregular profiles replicating limestone, fieldstone, sandstone, cut stone
Faux Brick: modular panel or individual unit profiles; mortar joint detail available
Faux Concrete: board-formed, broom-finished, or smooth architectural concrete texture
Color: integral pigmented topcoats; multi-tone hand-stained finishes available
Performance: fully waterproof; significantly lighter than real material counterparts
Applications: interior accent walls, exterior feature walls, retail/hospitality environments

Custom Sculptural & Artistic Elements

Capability: fully custom three-dimensional forms from digital files (STL, OBJ, DXF)
Typical projects: themed environments, retail experiential installations, large-scale sculptures
Core: EPS Type II or higher; PU/PIR for complex thin-wall geometries
Maximum single-piece dimensions: 36″ x 48″ x 192″ (billet); larger elements sectional assembly
Digital-to-physical workflow: client supplies 3D model; Royal Foam engineers toolpath and produces
Finish: polyurea + custom coating matching any architectural or brand color specification

Structural Insulated Panel (Sip) Cores

Core materials: EPS Type II, Type IX, or PU/PIR closed-cell per structural requirements
Core thickness: 3.5 to 12.25 inches standard; custom thicknesses available
Core R-values: EPS R-14 to R-50+; PU/PIR R-21 to R-80+ depending on thickness and type
Facings: OSB, plywood, steel, aluminum, fiber cement, or custom facings bonded by others
Dimensional tolerance: ±1/8″ per 10 feet per ASTM C578 dimensional stability requirements
Applications: wall panels, roof panels, floor panels, cold storage construction
Engineering: structural calculations for SIP assemblies available from Royal Foam engineering

Download

Copy information

Execution

1 Examination

Verify that supporting structures, substrates, and mounting surfaces are plumb, level, and aligned within tolerances required for product installation.
Confirm that substrates are structurally adequate to receive design attachment loads including dead load of foam elements and design wind pressures.
Verify that rough openings, blocking, nailers, and embedded anchors are properly positioned per approved shop drawings before beginning installation.
Do not proceed with installation until unsatisfactory conditions are corrected. Report discrepancies to Architect before proceeding.

2 Preparation

Clean all mounting surfaces of dust, oil, form release, and debris that could impair adhesive bond or fastener engagement.
Install any required blocking, shims, or leveling plates. Protect adjacent finish surfaces from adhesive, sealant, and coating overspray.
Prime surfaces where required by adhesive or coating manufacturer.

3 Installation — General

Install all elements per manufacturer’s written installation instructions and approved shop drawings.
Maintain plumb and level tolerances of ±1/8″ per 10 feet of height.
Assemble sectional elements using manufacturer -recommended adhesives and concealed mechanical fasteners. Stagger joints a minimum of 12 inches from adjacent section joints.
Install internal armatures and mounting hardware before applying outer elements. Conceal all structural hardware within finished elements.
Apply compatible flexible sealant at all joints between architectural foam elements and adjacent construction. Tool joints to produce smooth, consistent bead.
Apply touch-up finish coatings to match factory -applied coatings at field cuts, joints, and any areas of installation damage. Match color, texture, and sheen.
Do not install foam elements within 3 inches of heat-emitting devices, chimneys, or unprotected luminaires without thermal protection per IBC 2603

4 Installation — Columns Specific

Set column base on pre-leveled bearing surface. Align base to column centerline marked on substrate. Secure base with anchor bolts or adhesive per shop drawings.
Install column shaft sections from base upward. Check plumb in two directions at each section. Apply adhesive at mating surfaces before joining.
Install capital with adhesive and concealed fasteners. Align capital to column axis.
At sectional assemblies exceeding 16 feet height, verify that internal armature continuity is maintained through all sections before applying outer foam elements.

5 Field Quality Control

Inspect installed elements for plumb, level, and alignment per tolerances specified.
Verify coating continuity at all joints, penetrations, and field-cut surfaces.
Confirm sealant joints are fully tooled with no voids or gaps.
Document any deviations from approved shop drawings and obtain Architect acceptance before Substantial Completion.

6 Cleaning & Protection

Remove construction debris, adhesive residue, and coating overspray from installed elements.
Use only mild detergent and water for final cleaning. Do not use abrasive cleaners, solvents, or high-pressure washers that may damage protective coatings.
Protect installed elements from construction traffic and subsequent trades until project Substantial Completion using temporary padding or protective coverings.

Download

Copy information

Technical Data

EPS Geofoam · R-Values · Polyurea Performance · Wind Load · Fire Safety · Acoustic

1 Eps Geofoam Data — Astm D6817 Properties

EPS Geofoam per ASTM D6817 — applicable for geotechnical, below-grade, and structural fill applications. Also reference basis for high-density EPS specified in structural architectural applications.

Property	Units	EPS14 Type IX	EPS16 Type I	EPS19 Type VIII	EPS22 Type II	EPS39 Type XIV	EPS39 Type XIV	EPS46 Type XV
Min. Density	lb/ft³	0.70	0.90	1.15	1.35	1.80	2.40	2.85
Min. Density	kg/m³	11	14	18	22	29	38	45
Comp. Res. @10% def.	psi	5.6	10.2	16.0	19.6	29.0	40.0	50.0
Comp. Res. @1% def.	psi	0.4	0.7	1.1	1.4	2.7	3.5	4.3
Comp. Res. @5% def.	psi	2.2	3.0	5.6	7.3	10.9	15.0	18.8
Flexural Modulus	psi	220	400	540	730	1010	1500	1900
Flexural Str. (min.)	psi	10	25.0	30.0	30.0	50.0	60.0	75.0
Water Absorption (max.)	vol%	4.0	4.0	3.0	3.0	2.5	2.0	2.0
Oxygen Index (min.)	%	24.0	24.0	24.0	24.0	24.0	24.0	24.0
Buoyancy Force	lb/ft³	61.7	61.5	61.3	61.1	60.0	60.0	59.5

2 Eps & Pu Foam R-Values By Type & Thickness (Astm C518 75°F)

Thickness (in)	EPS Type I 0.9 pcf	EPS Type II 1.35 pcf	EPS Type IX 1.80 pcf	PU Open-cell 0.5 lb	PU Closed-cell 2.0 lb	PU Rigid PIR 3.0 lb
1″	3.9	4.2	4.3	3.7	6.2	6.3
1-1/2″	5.8	6.3	6.5	5.5	9.3	9.4
2″	7.7	8.3	8.7	7.4	12.4	12.6
3″	11.6	12.5	13.0	11.1	18.6	18.9
4″	15.4	16.7	17.4	14.8	24.8	25.2
5″	19.2	20.9	21.8	18.5	31.0	31.5
6″	23.1	25.0	26.1	22.2	37.2	37.8
8″	30.8	33.4	34.8	29.6	49.6	50.4

3 Fire Safety Data Summary — Astm E84 / Ibc 2603

ASTM Type	Density (lb/ft³)	Compressive Str. (psi)	Allow. Roof Uplift (psf)	Max Wind Speed Exp C (mph)	IBC Reference
EPS Type I	0.90	10–14	18–23	90–100	1-30 to 1-45
EPS Type II	1.35	15–21	27–35	110–120	1-60 to 1-75
EPS Type IX	1.80	25–33	33–45	120–135	1-75 to 1-90
PU CC SPF 2.0	2.0	20–35	38–47	125–135	1-60 to 1-75
PU Rigid 3.0	3.0	45	53–60	140–155	1-90 to 1-120
PU HD 6.0	6.0	125	80–88	165–175	1-120 to 1-150+

Values based on ICC-ES AC71 methodology, SF = 3.0. Actual design pressures are site-specific and must be calculated by licensed PE using ASCE 7-22 for project location, risk category, and exposure.

4 Wind Load Quick Reference — Asce 7-22 / Icc-Es Ac71

ASTM Type	Density (lb/ft³)	Compressive Str. (psi)	Allow. Roof Uplift (psf)	Max Wind Speed Exp C (mph)	IBC Reference
EPS Type I	0.90	10–14	18–23	90–100	1-30 to 1-45
EPS Type II	1.35	15–21	27–35	110–120	1-60 to 1-75
EPS Type IX	1.80	25–33	33–45	120–135	1-75 to 1-90
PU CC SPF 2.0	2.0	20–35	38–47	125–135	1-60 to 1-75
PU Rigid 3.0	3.0	45	53–60	140–155	1-90 to 1-120
PU HD 6.0	6.0	125	80–88	165–175	1-120 to 1-150+

Values based on ICC-ES AC71 methodology, SF = 3.0. Actual design pressures are site-specific and must be calculated by licensed PE using ASCE 7-22 for project location, risk category, and exposure.

Download

Copy information

Engineering & Compliance

Decorative Architectural Shapes Engineering Services · Code Compliance · Submittal Support

1 Decorative Architectural Shapes Engineering Services

Cad / 3D Modeling

Full 3D modeling and shop drawing production from architect’s design intent. DXF, DWG, STL, OBJ, and Revit file formats supported.

Wind Load Analysis

Site-specific ASCE 7-22 wind pressure calculations, exposure category determination, and component- and-cladding (C&C;) pressure tables for all project zones.

Installation Optimization

Pre-engineered installation sequences, assembly procedures, and logistics planning to minimize field labor and eliminate installation errors.

Value Engineering

Systematic review of project design to identify cost reduction opportunities through material ptimization, simplified geometry, or production sequencing without compromising architectural intent or performance.

Structural Design & Load Analysis

In-house structural analysis of foam element dead loads, attachment systems, and wind pressure capacity. PE-stamped calculations available for Risk Category III/IV projects or wind speeds exceeding 130 mph.

Custom Mounting System Design

Engineering of internal armatures, base onnections, through-bolt systems, and concealed attachment hardware optimized for each project’s structural conditions.

Submittal & Permitting Support

Preparation of AHJ submittals, product data packages, ASTM test reports, ICC-ES evaluation report references, and permit-ready documentation packages.

2 Code Compliance Matrix

Code / Standard	Section	Requirement	Decorative Architectural Shapes Compliance Method
IBC 2021	§2603.3	FSI ≤ 25 or ≤ 75 per occupancy	ASTM E84 test reports provided for all foam/coating systems
IBC 2021	§2603.4	Thermal barrier on interior faces	Product data specifies TB requirement; field verification checklist provided
IBC 2021	§2603.5	NFPA 285 for exterior walls >1 story	FM-listed assemblies available; NFPA 285 test report references on request
ASCE 7-22	§26–30	Design wind pressures — C&C	Site-specific ASCE 7-22 calculations by PE on request
ICC-ES AC71	§4–5	Fastener schedule & foam strength	AC71-compliant fastener tables; PE calculations confirming SF ≥ 3.0
ASTM C578	Table 1	EPS density & mechanical properties	Material certifications provided; lot testing on request
IBC 2021	§1207	STC 50 between dwelling units	Assembly data provided; spray foam + framing + GWB assemblies documented
ENERGY CODE	per state	Minimum R-value ci	R-value tables and energy code compliance data provided per project state
CSI MasterFormat	06 60 00	Plastic Fabrications specification	This document prepared in full CSI 3-Part Format compliance

3 Why Decorative Architectural Shapes — Engineering Differentiators

Capability	Decorative Architectural Shapes	Typical Competitor
Engineering in-house	YES — PE, structural, CAD, 3D	NO — outsourced or none
Design changes during production	YES — real-time adaptation	NO — new order required
Lead time	7–14 business days typical	4–8 weeks typical
Custom geometry capability	Unlimited — CNC from any 3D file	Limited standard profiles
Pre-assembled delivery	YES — reduces site labor	NO — field assembly required
Wind load calculations	YES — site-specific ASCE 7-22	NO — generic data only
ASTM E84 documentation	YES — current test reports provided	Sometimes — may require extra cost
Coastal/hurricane zone experience	YES — FL-based, 25+ years	Limited
Free warehouse storage	YES — hold until client ready	NO
Nationwide delivery	YES — all 50 states	Regional only
TCO reduction vs stone/concrete	30–50% documented savings	Not quantified

Download

Copy information

Acoustic Metrics - Definitions & Applicable Standards

Definitions & Applicable Standards

Metric	Full Name	Standard	What It Measures	Typical Range (Insulation)
STC	Sound Transmission Class	ASTM E413 / E90	Airborne sound isolation between rooms (speech, music, TV). Higher = better isolation.	25–65 (assemblies)
IIC	Impact Insulation Class	ASTM E413 / E492	Structure-borne impact noise (footsteps, dropped objects). Higher = better isolation.	25–70 (assemblies)
NRC	Noise Reduction Coefficient	ASTM C423 / ISO 354	Average sound absorption across 250–2000 Hz (four-bandaverage). 0 = fully reflective, 1.0 = fully absorptive.	0.05–0.95
SAC	Sound Absorption Coefficient	ASTM C423	Absorption at each 1/3-octave frequency band. Used for room acoustics design.	0.01–1.00 per band
OITC	Outdoor-Indoor Transmission Class	ASTM E1332	Similar to STC but weighted for low-frequency exterior noise (traffic, aircraft).	20–55 (assemblies)
Delta IIC	Impact Isolation Improvement	ISO 140-8	Improvement in IIC provided by floor underlayment over bare concrete or wood sub-floor.	+3 to +30 dB

Code Minimum Acoustic Requirements

Code / Standard	Section	Requirement	Applies To
IBC 2021	Section 1207	STC ≥ 50 (field-tested FIIC/FSTC) between dwelling units	Multi-family residential, hotels, motels, dormitories
IRC 2021	Section R302.13	STC ≥ 45 (lab) / FSTC ≥ 45 (field) for walls/floors between units	Two-family dwellings, townhouses
IRC 2021	Section R302.13	IIC ≥ 50 (lab) / FIIC ≥ 45 (field) for floor/ceiling assemblies	Two-family dwellings, townhouses
FHA / HUD	Noise Guidebook	Interior DNL ≤ 45 dB; STC ≥ 25 for units near highways/airports	Federally-assisted housing
OSHA 29 CFR 1910.95	—	Max 85 dBA 8-hr TWA; engineering controls required before PPE	Occupational / industrial noise
ASHRAE 2019 HVAC Apps	Chapter 49	NC 25–35 (bedrooms), NC 30–40 (offices), NC 40–50 (open offices)	HVAC system background noise — foam used as duct liner
IEC 61672 / ISO 1996	—	Environmental noise measurement — foam used in measurement rooms	Acoustic testing facilities

Section 1 — Expanded Polystyrene (Eps) Acoustic Performance | Astm C578

EPS is primarily a thermal insulation material. Its acoustic performance varies significantly by density and thickness. EPS is NOT a high-performance acoustic material in isolation — it must be used in composite assemblies to meet IBC STC/IIC minimums. EPS provides moderate sound absorption (NRC 0.10–0.35) and limited transmission loss.

Table 1a — Eps Sound Absorption Coefficient (Sac) By Density & Thickness (Astm C423 / Iso 354)

ASTM Type	Density (lb/ft³)	Thickness	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz	NRC (avg)	Performance
Type I	0.90–1.14	1″	0.02	0.03	0.05	0.06	0.07	0.07	0.05	Poor
Type I	0.90–1.14	2″	0.03	0.05	0.08	0.10	0.11	0.09	0.09	Poor
Type I	0.90–1.14	3″	0.05	0.07	0.10	0.13	0.13	0.10	0.11	Poor
Type I	0.90–1.14	4″	0.06	0.09	0.12	0.15	0.14	0.11	0.13	Poor
Type VIII	1.15–1.34	1″	0.02	0.04	0.06	0.07	0.08	0.08	0.06	Poor
Type VIII	1.15–1.34	2″	0.03	0.06	0.09	0.11	0.12	0.10	0.10	Poor
Type VIII	1.15–1.34	3″	0.05	0.08	0.11	0.14	0.14	0.11	0.12	Poor
Type VIII	1.15–1.34	4″	0.07	0.10	0.14	0.17	0.16	0.12	0.15	Poor–Fair
Type II	1.35–1.79	1″	0.03	0.04	0.07	0.08	0.09	0.08	0.07	Poor
Type II	1.35–1.79	2″	0.04	0.07	0.10	0.12	0.13	0.11	0.11	Poor
Type II	1.35–1.79	3″	0.06	0.09	0.13	0.16	0.15	0.12	0.13	Poor
Type II	1.35–1.79	4″	0.08	0.11	0.15	0.19	0.17	0.13	0.16	Poor–Fair
Type II	1.35–1.79	6″	0.10	0.14	0.19	0.23	0.20	0.15	0.19	Fair
Type IX	1.80–2.20	1″	0.03	0.05	0.08	0.09	0.10	0.09	0.08	Poor
Type IX	1.80–2.20	2″	0.05	0.08	0.12	0.14	0.14	0.12	0.12	Poor
Type IX	1.80–2.20	3″	0.07	0.11	0.15	0.18	0.17	0.13	0.15	Poor–Fair
Type IX	1.80–2.20	4″	0.09	0.13	0.18	0.22	0.20	0.15	0.18	Fair
Type IX	1.80–2.20	6″	0.12	0.17	0.23	0.28	0.25	0.18	0.23	Fair

SAC values are representative averages based on published EPS acoustic literature (ISO 354 / ASTM C423). EPS has low absorption (NRC 0.05–0.23) due to its rigid closed-cell structure. Best absorption occurs at mid-to-high frequencies. For reference: acoustic foam NRC 0.70–0.95; fiberglass batt NRC 0.90–0.95.

Code Minimum Acoustic Requirements

ASTM Type	Density (lb/ft³)	EPS Thick	TL 500 Hz (dB, board only)	TL 1000 Hz (dB, board only)	TL 2000 Hz (dB, board only)	STC (board only)	STC — Wall Assembly (EPS+2×4+5/8″ GWB ea. side)	Notes
Type I	0.90–1.14	1″	14	18	23	12	STC 38–40	EPS contributes mass + decoupling
Type I	0.90–1.14	2″	16	21	26	14	STC 40–42	Increased TL vs 1″
Type I	0.90–1.14	4″	19	25	30	17	STC 42–44	Diminishing returns above 2″
Type VIII	1.15–1.34	1″	14	19	24	13	STC 38–41	—
Type VIII	1.15–1.34	2″	17	22	27	15	STC 40–43	—
Type VIII	1.15–1.34	4″	20	26	31	18	STC 43–45	—
Type II	1.35–1.79	1″	15	20	25	13	STC 39–42	—
Type II	1.35–1.79	2″	18	23	28	16	STC 41–44	—
Type II	1.35–1.79	4″	21	27	33	19	STC 43–46	—
Type II	1.35–1.79	6″	23	30	36	21	STC 44–47	Best single-material EPS
Type IX	1.80–2.20	2″	19	24	29	17	STC 42–45	—
Type IX	1.80–2.20	4″	22	28	34	20	STC 44–47	—
Type IX	1.80–2.20	6″	25	32	38	23	STC 45–48	Highest EPS density best TL

TL values for EPS board alone are illustrative — EPS as a standalone panel has very low STC. Assembly STC values include the contribution of structural framing and gypsum wallboard. To achieve IBC 2021 minimum STC 50 between dwelling units, EPS alone is insufficient; use in composite assemblies with resilient channels, double stud walls, or mass-loaded vinyl (MLV). ACOUSTIC

Section 2 — Polyurethane (Pu/Spf) Foam Acoustic Performance | Astm C591 / C1029

Polyurethane foam — particularly open-cell SPF — is significantly superior to EPS in acoustic performance. Open-cell PU foam achieves NRC 0.70–0.90, comparable to premium acoustic products. Closed-cell PU foam is denser and less absorptive (NRC 0.15–0.40) but provides better transmission loss. PU foam spray-applied to cavities provides excellent air sealing which further improves assembly STC by +3–5 dB.

Table 2a — Pu Foam Sound Absorption Coefficient (Sac) By Type, Density & Thickness (Astm C423 / Iso 354)

PU Type	Cell Structure	Density (lb/ft³)	Thickness	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz	NRC (avg)	Rating
Open-cell SPF (Type I, C1029)	Open	0.5	1″	0.10	0.25	0.60	0.80	0.82	0.78	0.62	Good
Open-cell SPF (Type I, C1029)	Open	0.5	2″	0.18	0.45	0.82	0.92	0.90	0.85	0.77	Very Good
Open-cell SPF (Type I, C1029)	Open	0.5	3″	0.28	0.65	0.90	0.95	0.93	0.88	0.86	Excellent
Open-cell SPF (Type I, C1029)	Open	0.5	4″	0.38	0.78	0.93	0.97	0.95	0.90	0.91	Excellent
Open-cell SPF (Type I, C1029)	Open	0.5	6″	0.52	0.88	0.96	0.99	0.97	0.92	0.95	Excellent
Closed-cell SPF (Type II, C1029)	Closed	2.0	1″	0.03	0.06	0.12	0.18	0.20	0.18	0.14	Poor
Closed-cell SPF (Type II, C1029)	Closed	2.0	2″	0.05	0.10	0.18	0.25	0.28	0.24	0.20	Poor–Fair
Closed-cell SPF (Type II, C1029)	Closed	2.0	3″	0.07	0.14	0.23	0.32	0.35	0.29	0.26	Fair
Closed-cell SPF (Type II, C1029)	Closed	2.0	4″	0.09	0.17	0.28	0.38	0.41	0.34	0.31	Fair
Closed-cell SPF (Type II, C1029)	Closed	2.0	6″	0.12	0.22	0.35	0.46	0.50	0.40	0.38	Fair
Rigid PU/PIR (C591 Type III)	Closed	3.0	1″	0.02	0.05	0.10	0.15	0.17	0.15	0.12	Poor
Rigid PU/PIR (C591 Type III)	Closed	3.0	2″	0.04	0.08	0.15	0.22	0.25	0.21	0.18	Poor
Rigid PU/PIR (C591 Type III)	Closed	3.0	4″	0.07	0.13	0.22	0.30	0.33	0.27	0.25	Fair
Rigid PU/PIR (C591 Type III)	Closed	3.0	6″	0.10	0.17	0.28	0.37	0.40	0.32	0.31	Fair
High-density PU (C591 Type VI)	Closed	6.0	1″	0.02	0.04	0.08	0.12	0.14	0.12	0.10	Poor
High-density PU (C591 Type VI)	Closed	6.0	2″	0.03	0.06	0.12	0.18	0.20	0.17	0.14	Poor
High-density PU (C591 Type VI)	Closed	6.0	4″	0.05	0.10	0.17	0.25	0.27	0.23	0.20	Poor–Fair

Open-cell SPF NRC values based on published SPFA data, ASTM C423 test reports, and acoustic literature. Closed-cell and rigid PU values derived from manufacturer test data and ISO 354 reference studies. NRC = average of SAC at 250, 500, 1000, 2000 Hz rounded to nearest 0.05.

Table 2b — Pu Foam Transmission Loss (Tl) & Assembly Stc By Density & Thickness

PU Type	Density (lb/ft³)	Thickness	TL 500 Hz	TL 1000 Hz	TL 2000 Hz	STC (material)	Delta IIC (floor underlay)	STC—Assembly (filled 2×4 + GWB)	Notes
Open-cell SPF	0.5	2″	9	13	18	10	+8 to +12	STC 46–49	Air sealing adds +3–5 dB
Open-cell SPF	0.5	3.5″	11	16	21	12	+10 to +15	STC 48–52	Full 2×4 cavity fill
Open-cell SPF	0.5	5.5″	12	18	23	13	+12 to +18	STC 50–54	Full 2×6 cavity; good isolation
Closed-cell SPF	2.0	1″	14	20	26	15	+3 to +6	STC 40–43	Higher TL per inch
Closed-cell SPF	2.0	2″	19	26	32	18	+5 to +8	STC 43–47	Better mass-law performance
Closed-cell SPF	2.0	3″	23	30	37	22	+6 to +10	STC 46–50	Partial wall fill; strong performance
Closed-cell SPF	2.0	4″	26	33	40	25	+6 to +10	STC 48–52	Excellent TL for closed-cell
Rigid PU/PIR	3.0	2″	21	28	34	20	+4 to +7	STC 44–48	Board-stock installation
Rigid PU/PIR	3.0	4″	27	34	41	26	+5 to +8	STC 48–52	Continuous insulation
High-density PU	6.0	2″	25	32	39	24	+3 to +5	STC 46–50	High mass = good TL
High-density PU	6.0	4″	30	38	46	29	+4 to +6	STC 50–54	Best single-layer TL for PU

Assembly STC values include 2×4 or 2×6 wood framing + 5/8″ Type X GWB each side (standard party wall). Green cells indicate assemblies meeting or exceeding IBC 2021 Section 1207 minimum STC 50. Delta IIC values apply when PU foam is used as floor underlayment under finish flooring. Air sealing benefit (+3–5 dB) is specific to spray-applied PU foam filling all framing cavities.

Section 3 — Comparative Summary, Application Guide & Permit Checklist

Table 3a — Eps Vs. Pu Foam Acoustic Property Comparison

Property	Test Method	EPS Type I 0.9 pcf	EPS Type IX 2.0 pcf	PU Open-cell 0.5 lb/ft³	PU Open-cell 2.0 lb/ft³	PU Open-cell 3.0 lb/ft³	PU HD 6.0 lb/ft³
NRC 2″ thick	ASTM C423	0.09	0.12	0.77	0.20	0.18	0.14
NRC 4″ thick	ASTM C423	0.13	0.18	0.91	0.31	0.25	0.20
SAC 500 Hz, 2″	ASTM C423	0.08	0.12	0.82	0.18	0.15	0.12
SAC 1000 Hz, 2″	ASTM C423	0.10	0.14	0.92	0.25	0.22	0.18
STC — material, 2″	ASTM E90	14	17	10	18	20	25
STC — assembly, 2″	ASTM E90	40–42	42–45	46–49	43–47	44–48	46–50
Delta IIC 2″	ASTM E492	+2 to +4	+3 to +5	+8 to +12	+5 to +8	+4 to +7	+3 to +5
R-value/inch	ASTM C518	3.85	4.35	3.70	6.20	6.30	5.80
Density (lb/ft³)	ASTM D1622	0.9	2.0	0.5	2.0	3.0	6.0
Meets IBC STC 50 (assembly)	IBC 1207	NO (alone)	NO (alone)	YES (3.5″ + cavity)	YES (4″+ cavity)	YES (4″+ ci)	YES (4″+ ci)
Best acoustic use	—	Thermal/structural; not acoustic	Thermal/structural; not acoustic	Wall cavity fill; sound absorption	Wall/roof ci; transmission loss	Ci panels; transmission loss	Industrial; high mass TL

Table 3b — Application Guide: Which Foam For Which Acoustic Goal

Acoustic Goal	Recommended Material	Thickness	Expected Performance	Code Met
Sound absorption in studio/music room	Open-cell PU SPF (0.5 lb/ft³)	2″–4″	NRC 0.77–0.91 (broadband)	ASHRAE NC goals met
Wall STC ≥ 50 — multi-family party wall	Open-cell SPF in 2×4/2×6 cavity	3.5″–5.5″	Assembly STC 48–54 (with GWB)	IBC 2021 §1207 — YES
Floor IIC ≥ 50 — apartment over apartment	Open-cell SPF or Closed-cell SPF underlayment	2″ underlayment	Delta IIC +8 to +15; assembly IIC 50–60	IBC 2021 §1207 — YES
Exterior wall thermal + acoustic (city location)	Closed-cell SPF or Rigid PU/PIR (2.0–3.0 lb/ft³)	2″–4″	Assembly STC 43–52; R-12 to R-25	IBC 2603.5 / STC req.
HVAC duct liner — ASHRAE NC compliance	Open-cell PU foam liner	1″–2″ duct liner	NRC 0.62–0.77; NC reduction 5–10 dB	ASHRAE 90.1 — YES
Industrial noise control (OSHA compliance)	High-density PU (6.0 lb/ft³) panels	4″–6″	STC 50–54 (panel assembly); TL 30–40 dB	OSHA 1910.95 — YES
Below-grade foundation (thermal + minor acoustic)	EPS Type II/X (1.35–2.20 lb/ft³)	2″–4″	NRC 0.11–0.18; minor TL contribution	Thermal primary; acoustic incidental
Budget wall insulation — residential retrofit	EPS Type I/X in composite assembly	4″–6″ + resilient channel + GWB	Assembly STC 45–50	IRC R302.13 — marginal

Acoustic Permit Review Checklist — Ahj / Building Department

#	Verification Item	EPS	PU Open-cell	PU Closed-cell	Code Reference
1	ASTM C423 or ISO 354 test report provided for specific product/thickness	Req’d	Req’d	Req’d	ASTM C423
2	STC ≥ 50 (lab) verified for party wall / floor-ceiling assembly	Assembly req’d	Spray-filled cavity	With ci	IBC 2021 §1207
3	IIC ≥ 50 (lab) / FIIC ≥ 45 (field) for floor-ceiling (multi-family)	Assembly req’d	SPF underlayment	SPF underlayment	IBC 2021 §1207
4	Field-verified FSTC ≥ 45 / FIIC ≥ 45 test report (post-construction)	Req’d	Req’d	Req’d	IBC 2021 §1207.5
5	Assembly listing or ICC-ES evaluation report provided	Req’d	Req’d	Req’d	IBC 1703
6	Air sealing at penetrations and perimeter confirmed (flanking control)	Detail req’d	SPF self-sealing	Detail req’d	IBC 1207 / IRC R302
7	Resilient channel or isolation clips specified (if STC < 45 without)	Verify	May not need	Verify	Acoustic engineer
8	Floor underlayment product listing / Delta IIC value documented	N/A (poor IIC)	Req’d if used	Req’d if used	ASTM E492
9	OSHA 1910.95 noise survey (if industrial application)	If applicable	If applicable	If applicable	OSHA 29 CFR 1910.95
10	ASHRAE NC target confirmed (if HVAC duct liner application)	N/A	Req’d	N/A	ASHRAE 90.1 Ch.49

Download

Copy information

Eps Foam Insulation Size, Density & R-Value

Expanded Polystyrene (Eps) Insulation Standard Sizes, Densities And R-Values

Thickness	Size Option #1	Size Option #2	Size Option #3	Size Option #4	1.0#Type I R-value	1.25#Type VIII R-value	1.5#Type II R-value	2.0#Type IX R-value
1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	1.93	1.96	2.09	2.18
3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	2.89	2.94	3.13	3.26
1″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	3.85	3.92	4.17	4.35
1-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	4.81	4.90	5.21	5.44
1-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	5.78	5.88	6.26	6.53
1-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	6.74	6.86	7.30	7.61
2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	7.70	7.84	8.34	8.70
2-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	8.66	8.82	9.38	9.79
2-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	9.63	9.80	10.43	10.88
2-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	10.59	10.78	11.47	11.96
3″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	11.55	11.76	12.51	13.05
3-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	12.51	12.74	13.55	14.14
3-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	13.48	13.72	14.60	15.23
3-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	14.44	14.70	15.64	16.31
4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	15.40	15.68	16.68	17.40
4-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	16.36	16.66	17.72	18.49
4-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	17.33	17.64	18.77	19.58
4-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	18.29	18.62	19.81	20.66
5″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	19.25	19.60	20.85	21.75
5-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	20.21	20.58	21.89	22.84
5-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	21.18	21.56	22.94	23.93
5-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	22.14	22.54	23.98	25.01
6″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	23.10	23.52	25.02	26.10
6-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	24.06	24.50	26.06	27.19
6-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	25.03	25.48	27.11	28.28
6-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	25.99	26.46	28.15	29.36
7″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	26.95	27.44	29.19	30.45
7-1/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	27.91	28.42	30.23	31.54
7-1/2″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	28.88	29.40	31.28	32.63
7-3/4″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	29.84	30.38	32.32	33.71
8″	24″ x 48″	24″ x 96″	48″ x 48″	48″ x 96″	30.80	31.36	33.36	34.80

For ASTM C578 Type and physical properties see page 2

ASTM C578, Type I (1.0# Nominal Density)

ASTM C578, Type VIII (1.25# Nominal Density)

ASTM C578, Type II (1.5# Nominal Density)

ASTM C578, Type IX (2.0# Nominal Density)

Nominal sizes and densities Billets are available in any sizes up to 36” thick x 48” wide x 192” long

For custom sizes contact ABT Foam at 704-873-9081 (Toll Free 866-634-6057)

No adjustment for R-value aging R-values (Thermal Resistance) are calculated based 75° F, see “Typical Physical Properties of Expanded Polystyrene (EPS)” found on page 2

Typical Physical Properties Of Expanded Polystyrene (Eps)

Specification Reference: Astm C578

Property	Units	ASTM Test	Type XI	Type I	Type VIII	Type II	Type IX
Property	Units	ASTM Test	0.75#Density	1.0#Density	1.25#Density	1.5#Density	2.0#Density
Density, Min.	(pcf)	D 303 or D 1622	0.75	0.9	1.15	1.35	1.8
Density Range			0.70	0.90-1.14	1.15-1.34	1.35-1.79	1.80-2.20
Thermal Conduct.at 25 F	BTU/(hr.) (sq. Ft.)(F/in.)	C177 or C518		0.23	0.22	0.20	0.20
K Factorat 40 F				0.24	0.235	0.22	0.21
at 75 F				0.26	0.255	0.24	0.23
Thermal Resistanceat 25 F				4.35	4.54	4.76	5.00
R-Value*at 40 F			3.30 – 3.43	4.0 – 4.17	4.20 – 4.25	4.40 – 4.55	4.60 – 4.76
at 75 F			3.10 – 3.22	3.6 – 3.85	3.9 – 3.92	4.0 – 4.17	4.20 – 4.35
Strength Properties
Compressive 10%Deformation	psi	D 1621	5.0	10. – 14	13 – 18	15 – 21	25 – 33
Flexural	psi	C 203	10.0	25 – 30	30 – 38	40 – 50	50 – 75
Tensile	psi	D 1623	5.0	16 – 20	17 – 21	18 – 22	23 – 27
Shear	psi	D 723		18 – 22	23 – 25	26 – 32	33 – 37
Shear Modulus	psi			280 – 320	370 – 410	460 – 500	600 – 640
Modulus of Elasticity	psi			180 – 220	250 – 310	320 – 360	460 – 500
Moisture Resistance
WVT	perm. In.	E 96	5.0	2.0 – 5.0	1.5 – 3.5	1.0 – 3.5	0.6 – 2.0
Absorption (vol.)	%	C 272	4.0	less than 4.0	less than 3.0	less than 3.0	less than 2.0
Capillarity			none	none	none	none	none
Coefficient of Thermal Expansion	in./(in.)(F)	D 696		0.000035	0.000035	0.000035	0.000035
Maximum Service Temperature
Long-term Exposure	Deg. F		167	167	167	167	167
Intermittent Exposure			180	180	180	180	180
Oxygen Index	%		24.0	24.0	24.0	24.0	24.0
Flame Spread			less than 25	less than 25	less than 25	less than 25	less than 25
Smoke Developed			less than 450	less than 450	less than 450	less than 450	less than 450

Physical Properties chart is reprinted with the permission by The Society of the Plastics Industry, Inc.

Caution: Expanded Polystyrene (EPS) contains a flame retardant. However, it should be considered flammable and should not be ex posed to any source of combustion. EPS insulation should be covered with a thermal barrier or otherwise installed in accordance with applicable building code requirements.

Solvent Attack: EPS is subject to attack by petroleum based solvents. Care should be taken to prevent contact between EPS and these solvents or their vapors.

Storage: EPS foam products must be stored flat on the original shipping runners, pallet or cartons. The material must be elevated above floor or ground level. If stored outdoors, must be covered with UV and waterproof covering. Do not store close to open flame.

Ultraviolet Degradation: Prolonged exposure to sunlight will cause slight discoloration and surface dusting of EPS insulation. The insu lating properties will not be significantly affected under normal usage. EPS stored outside should be protected with a light-colored opaque tarpaulin.

Eps Foam Insulation

Expanded polystyrene (EPS) is a closed cell, light weight, resilient foamed plastic insulation. EPS is able to withstand the abuse of temperature cycling and assuring long term performance. EPS has been an innovative building material since the 1950’s and is recog nized as a mainstream insulation and building material. EPS is an ideal choice for green building designs, offering environmental advantages that can maximize energy efficiency.

Long Term Insulation Value

R-value means the resistance to heat flow. The higher the R value the greater the resistance to heat flow. The thermal perfor mance of EPS insulation, as with any insulation product, depends upon the correct installation using good building practice. When properly installed, the R-value of EPS insulation remains constant for the life of the application. This is because the closed cell structure of EPS only contains air. As a result, the R-value of EPS insulation provided for each product type may be used as a de sign value without any adjustment for age.

Eps Environmental Impact

EPS insulation is an inert, organic material produced from petro leum and natural gas by-products. EPS insulation does not con tain CFC’s, HCFC’s, adhesives or formaldehyde. EPS foam insulation provides no nutritive value to plants, animals, or micro organisms. It will not rot and is highly resistant to mildew and mold resistant (Tested in accordance with ASTM C1338 “Standard Test Method for Determining Fungi Resistance of Insulation Materials and Facings.

“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and maintenance of any product purchased from ABT FOAM, LLC., and EXCEPT AS EXPRESSLY PROVIDED IN ABT FOA’S STANDARD WARRANTIES, ABT FOAM MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICATION. Copies of ABT FOAM’S standard warranties are available upon request.” ABT FOAM’S Trade Mark Products: Advanced Wrap™, DropSide™ and PreFur™

Eps Foam Insulation Is Manufactured In Accordance With Astm C578

EPS is manufactured in a wide range of densities from the lower cost effective 1.0# (0.90 pcf density) and up to the high performance 2.0# (1.8 pcf density) meeting the demands of the roofing industry.

Temperature Cycling

EPS is able to withstand the riggers of temperature cycling assuring long-term perfomance. In a series of tests, conducted by the Dynatech Research Development Co., Cambridge, MA, core speci mens removed from existing freezer walls, some as old as 16 years, demonstrates EPS withstands freeze-thaw cycling without oss of structural integrity or other physical properties.

Download

Copy information

Polyurethane (Pu) Foam Insulation

R-Values by Density & Thickness · ASTM C518 @ 75°F mean temperature · Thickness in inches

Foam Types By Density

Type	Cell Structure	Density (lb/ft³)	Density (kg/m³)	R-value per inch	Primary Use
Type I Open-cell	Open cell (air-blown)	0.5	8	3.6 – 3.8	Interior walls, attics (sound & air seal)
Type II Closed-cell (standard)	Closed cell (HFC-blown)	2.0	32	6.0 – 6.5	Walls, roofs, crawlspaces vapor retarder
Type III Closed-cell HD (roofing)	Closed cell (HFC-blown)	3.0	48	6.0 – 6.5	Commercial roofing, continuous insulation
Type VI High-density (industrial)	Closed cell	6.0	96	5.5 – 6.0	Industrial, cold storage, structural panels

R-Value By Thickness

Thickness	Open-cell 0.5 lb/ft³ R-value	Closed-cell 2.0 lb/ft³ R-value	Closed-cell 3.0 lb/ft³ R-value	High-density 6.0 lb/ft³ R-value
1/2″	1.85	3.10	3.15	2.90
3/4″	2.78	4.65	4.72	4.35
1″	3.70	6.20	6.30	5.80
1-1/4″	4.62	7.75	7.88	7.25
1-1/2″	5.55	9.30	9.45	8.70
1-3/4″	6.48	10.85	11.03	10.15
2″	7.40	12.40	12.60	11.60
2-1/4″	8.33	13.95	14.17	13.05
2-1/2″	9.25	15.50	15.75	14.50
2-3/4″	10.18	17.05	17.32	15.95
3″	11.10	18.60	18.90	17.40
3-1/4″	12.03	20.15	20.47	18.85
3-1/2″	12.95	21.70	22.05	20.30
3-3/4″	13.88	23.25	23.62	21.75
4″	14.80	24.80	25.20	23.20
4-1/4″	15.73	26.35	26.77	24.65
4-1/2″	16.65	27.90	28.35	26.10
4-3/4″	17.57	29.45	29.93	27.55
5″	18.50	31.00	31.50	29.00
5-1/4″	19.43	32.55	33.07	30.45
5-1/2″	20.35	34.10	34.65	31.90
5-3/4″	21.28	35.65	36.23	33.35
6″	22.20	37.20	37.80	34.80
6-1/2″	24.05	40.30	40.95	37.70
7″	25.90	43.40	44.10	40.60
7-1/2″	27.75	46.50	47.25	43.50
8″	29.60	49.60	50.40	46.40

Physical Properties By Density (Astm C591-22, Astm C1029)

Property	Test Method	Open-cell 0.5 lb/ft³	Closed-cell 2.0 lb/ft³	Closed-cell 3.0 lb/ft³	High-density 6.0 lb/ft³
Density, min (lb/ft³)	ASTM D1622	0.4 – 0.6	1.8 – 2.2	2.8 – 3.2	5.5 – 6.5
Density, min (kg/m³)	ASTM D1622	6.4 – 9.6	29 – 35	45 – 51	88 – 104
R-value per inch @ 75°F	ASTM C518	3.6 – 3.8	6.0 – 6.5	6.0 – 6.5	5.5 – 6.0
Thermal conductivity (BTU·in/hr·ft²·°F)	ASTM C518 / C177	~0.27	~0.16	~0.16	~0.17
Compressive strength @ 10% deform. (psi)	ASTM D1621	0.1 – 0.3	20 – 35	35 – 50	100 – 150
Tensile strength (psi)	ASTM D1623	~2 – 5	50 – 75	75 – 110	150 – 200

Property	Test Method	Open-cell 0.5 lb/ft³	Closed-cell 2.0 lb/ft³	Closed-cell 3.0 lb/ft³	High-density 6.0 lb/ft³
Water absorption (% vol, 96 hr)	ASTM D2842	10%	< 1%	< 0.8%	< 0.5%
Water vapor permeance (perm·in)	ASTM E96	10	~ 1.1	~ 0.8	~ 0.4
Closed-cell content (%)	ASTM D2856	< 10%	90%	90%	95%
Dimensional stability, 7 days (% linear)	ASTM D2126	< 8%	< 5%	< 3%	< 2%
Flame spread index	ASTM E84	< 75	< 25	< 25	< 25
Smoke developed index	ASTM E84	< 450	< 450	< 450	< 450
Max service temperature (°F)	—	175	200	250	300
Vapor retarder class (@ 2″)	ASTM E96	None	Class II	Class I	Class I
Air barrier performance	ASTM E283 / E2178	No	Yes (≥1″)	Yes (≥1″)	Yes

R-values for open-cell foam are stable over time (air-blown, no gas loss). Closed-cell values are aged per FTC 16 CFR Part 460 regulations.product data sheets for design purposes.
High-density 6.0 lb/ft³ foam shows slightly lower R-value per inch compared to 2–3 lb foam due to increased solid conduction through the denser polymer matrix.
R-values calculated as: thickness (in) × R per inch. For thicknesses not listed, use linear interpolation between nearest values.
Sources: ASTM C591-22, ASTM C1029 (Type I & II SPF), Gaco 183M Product Data Sheet, SPFA Technical Guide, American Chemistry Council PUR/PIR Report, Highperformanceinsulation.eu.
Note: These are typical/representative values. Specific products may vary. Always verify with manufacturer product data sheets for design purposes.

Download

Copy information

Fire Safety Material Submittal

Expanded Polystyrene (Eps) & Polyurethane (Pu) Foam Insulation

Prepared for Fire Marshal / Authority Having Jurisdiction (AHJ) Review | Date: April 16, 2026 | Applicable Codes: IBC 2021 · IFC 2021 · NFPA 101 · IRC 2021

Scope Of Submittal

This document provides fire safety data for two classes of foam plastic insulation — Expanded Polystyrene (EPS, per ASTM C578) and Spray/Rigid Polyurethane foam (PU/PIR, per ASTM C591 / C1029) — to support permit issuance and AHJ review. Data includes ASTM E84 surface burning characteristics, ignition barrier requirements, thermal barrier requirements, maximum exposed thicknesses, applicable building code sections, and R-value/density cross-reference tables. All values reflect tested or code-referenced performance at standard conditions (75°F, ASTM C518).

Key Code & Standard References

Code / Standard	Section / Ref.	Applicability
IBC 2021 International Building Code	Section 2603	Foam plastic insulation in buildings
IFC 2021 International Fire Code	Section 2603.4	Thermal / ignition barrier requirements
IRC 2021 International Residential Code	Section R316	Foam plastic insulation residential
NFPA 101 Life Safety Code	Section 10.2.3	Interior finish flame-spread classification
ASTM E84 Surface Burning Characteristics	Tunnel test, 10 min	Flame Spread Index & Smoke Developed Index
ASTM E119	Fire resistance	Hour-rated assembly testing
ASTM C578	Types I–IX	EPS physical properties & density classification
ASTM C591 / C1029	Types I–VI / I–II	PU/PIR rigid foam & spray foam classification
NFPA 285	Wall assembly test	Multi-story exterior wall fire propagation
ICC-ES AC377	Appendix X	Attic/crawl space ignition barrier alternative

Nfpa 101 / Ibc Interior Finish Classification By Flame Spread Index

Class	Flame Spread Index (FSI)	Smoke Developed Index (SDI)	Typical Locations Permitted
Class A (I)	0 – 25	0 – 450	Exits, exit access, high-hazard occupancies
Class B (II)	26 – 75	0 – 450	Rooms / areas in most occupancies
Class C (III)	76 – 200	0 – 450	Rooms in low-hazard occupancies only
Prohibited	> 200	Any	Not permitted as interior finish

Section 1 — Expanded Polystyrene (Eps) Insulation

Standard: ASTM C578 | Types I, VIII, II, IX by density | Oxygen Index: 24% | Contains flame retardant additive

Table 1a — Eps Fire Properties By Astm Type & Density (Astm E84 / Ibc 2603)

ASTM Type	Nominal Density (lb/ft³)	Flame Spread Index (FSI)	Smoke Developed Index (SDI)	NFPA 101 Class	IBC Section 2603.4 Compliant	Oxygen Index (%)	Ignition Temp (°F)	Max Thickness w/o Thermal Barrier
Type I	0.9 – 1.14	< 25	< 450	Class A (I)	YES	24.0	~680°F	IBC 2603.4 (requires TB)
Type VIII	1.15 – 1.34	< 25	< 450	Class A (I)	YES	24.0	~680°F	IBC 2603.4 (requires TB)
Type II	1.35 – 1.79	< 25	< 450	Class A (I)	YES	24.0	~680°F	IBC 2603.4 (requires TB)
Type IX	1.80 – 2.20	< 25	< 450	Class A (I)	YES	24.0	~680°F	IBC 2603.4 (requires TB)

FSI and SDI values apply to flame-retardant grade EPS per ASTM C578. Non-FR EPS may exceed these values. TB = Thermal Barrier (minimum 15-min rated, IBC Section 2603.4).

Table 1b — Eps R-Values, Thickness & Code Requirements By Type

Thickness (inches)	Type I 0.9 pcf R-value	Type VIII 1.15 pcf R-value	Type II 1.35 pcf R-value	Type IX 1.80 pcf R-value	Thermal Barrier Required	Ignition Barrier Required	IBC 2603.4 Notes
1″	3.85	3.92	4.17	4.35	YES (all)	Attic/crawl	2603.4.1.2
1-1/2″	5.78	5.88	6.26	6.53	YES (all)	Attic/crawl	2603.4.1.2
2″	7.70	7.84	8.34	8.70	YES (all)	Attic/crawl	2603.4.1.2
2-1/2″	9.63	9.80	10.43	10.88	YES (all)	Attic/crawl	2603.4.1.2
3″	11.55	11.76	12.51	13.05	YES (all)	Attic/crawl	2603.4.1.2
3-1/2″	13.48	13.72	14.60	15.23	YES (all)	Attic/crawl	2603.4.1.2
4″	15.40	15.68	16.68	17.40	YES (all)	Attic/crawl	2603.4.1.2
4-1/2″	17.33	17.64	18.77	19.58	YES (all)	Attic/crawl	2603.4.1.2
5″	19.25	19.60	20.85	21.75	YES (all)	Attic/crawl	2603.4.1.2
5-1/2″	21.18	21.56	22.94	23.93	YES (all)	Attic/crawl	2603.4.1.2
6″	23.10	23.52	25.02	26.10	YES (all)	Attic/crawl	2603.4.1.2
7″	26.95	27.44	29.19	30.45	YES (all)	Attic/crawl	2603.4.1.2
8″	30.80	31.36	33.36	34.80	YES (all)	Attic/crawl	2603.4.1.2

Table 1c — Eps Barrier Requirements By Installation Location (Ibc 2603.4)

Installation Location	Thermal Barrier Required?	Ignition Barrier Required?	Max Exposed Thickness	Code Reference
Walls / Ceilings (interior)	YES — min. 1/2″ gypsum board or equiv.	N/A	None — must be covered	IBC 2603.4
Attic (above insulation)	NO (exempt if IBC 2603.4.1.2)	YES (unless AC377 Alt.)	Varies by listing	IBC 2603.4.1.2
Crawl space (floor/walls)	NO (exempt if IBC 2603.4.1.3)	YES (unless AC377 Alt.)	Varies by listing	IBC 2603.4.1.3
Below-grade / foundation	NO (typically exempt)	NO	Unlimited below grade	IBC 2603.4.1.4
Roof assembly (above deck)	NO (above deck, protected by roofing)	NO	Per roofing system listing	IBC 2603.4.1.6

Thermal Barrier = minimum 15-minute fire-rated separation per IBC 2603.4. Acceptable products: 1/2″ Type X gypsum wallboard, 23/32″ wood structural panel, or products listed per IBC 2603.4. Ignition Barrier alternatives per ICC-ES AC377 Appendix X may substitute for ignition barriers in attic/crawl spaces when foam is listed and labeled for such use.

Section 2 — Polyurethane (Pu/Pur/Pir) Foam Insulation

Standards: ASTM C591 (rigid PU/PIR) · ASTM C1029 (spray PU, Type I open-cell / Type II closed-cell) | Contains flame retardant | Must be protected from UV

Table 2a — Pu Foam Fire Properties By Type & Density (Astm E84 / Ibc 2603)

Type / Product	Density (lb/ft³)	Cell Structure	Flame Spread Index (FSI)	Smoke Developed Index (SDI)	NFPA 101 Class	IBC 2603.4 Compliant	Oxygen Index (%)	Max Thickness ASTM E84 (tested)
Open-cell SPF (ASTM C1029 Type I)	0.4–0.6	Open	< 75	< 450	Class B (II)	YES (w/ barrier)	~25	4″
Closed-cell SPF (ASTM C1029 Type II)	1.5–2.0	Closed	< 25	< 450	Class A (I)	YES (w/ barrier)	~27	4″
Rigid PU/PIR (ASTM C591 Type I)	1.8	Closed	< 25	< 450	Class A (I)	YES (w/ barrier)	~26	4″
Rigid PU/PIR (ASTM C591 Type II)	2.5	Closed	< 25	< 450	Class A (I)	YES (w/ barrier)	~26	4″
Rigid PU/PIR (ASTM C591 Type III)	3.0	Closed	< 25	< 450	Class A (I)	YES (w/ barrier)	~26	4″
High-density PU (ASTM C591 Type VI)	6.0	Closed	< 25	< 450	Class A (I)	YES (w/ barrier)	~26	4″

Open-cell SPF Class B (FSI 25–75) requires Class B or better interior finish rating. Closed-cell and rigid PU/PIR achieve Class A. ASTM E84 tested at max 4″ thickness per ASTM guidelines; thicker installations require NFPA 285 assembly testing. FSI/SDI values are for FR-grade foam — verify specific product listing.

Table 2b — Pu Foam R-Values By Density & Thickness With Fire Code Requirements

Thickness (inches)	Open-cell 0.5 lb/ft³ R-val	Closed-cell 2.0 lb/ft³ R-val	Closed-cell 3.0 lb/ft³ R-val	H-Density 6.0 lb/ft³ R-val	Thermal Barrier Required	Min TB Product	Vapor Retarder Class	IBC Code Ref.
1″	3.7	6.2	6.3	5.8	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
1-1/2″	5.5	9.3	9.4	8.7	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
2″	7.4	12.4	12.6	11.6	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
2-1/2″	9.2	15.5	15.8	14.5	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
3″	11.1	18.6	18.9	17.4	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
3-1/2″	12.9	21.7	22.1	20.3	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
4″	14.8	24.8	25.2	23.2	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
4-1/2″	16.6	27.9	28.4	26.1	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
5″	18.5	31.0	31.5	29.0	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
5-1/2″	20.4	34.1	34.6	31.9	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
6″	22.2	37.2	37.8	34.8	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
7″	25.9	43.4	44.1	40.6	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4
8″	29.6	49.6	50.4	46.4	YES	1/2″ Type X GWB or equiv.	Class II	IBC 2603.4

R-values: open-cell @ 3.70/in, closed-cell 2.0 lb @ 6.20/in, 3.0 lb @ 6.30/in, 6.0 lb @ 5.80/in per ASTM C518 @ 75°F aged values (FTC 16 CFR Part 460). Vapor retarder class per ASHRAE 90.1 / IRC R702.7 at rated thickness.

Section 3 — Barrier Requirements, Installation Compliance & Comparative Summary

Table 3a — Pu Foam Barrier Requirements By Installation Location (Ibc 2603.4 / Irc R316)

Location	Thermal Barrier Required?	Min. Thermal Barrier	Ignition Barrier Required?	NFPA 285 Required?	Max Exposed Thickness	Code Ref.
Interior walls / ceilings	YES	1/2″ Type X GWB or 15-min equiv.	N/A	NO (residential)	None — must cover	IBC 2603.4
Attic (open-cell SPF)	YES	1/2″ GWB	YES	NO	Per product listing	IBC 2603.4.1.2
Attic (closed-cell SPF)	NO (w/ ICC-ES AC377)	—	YES (or AC377 Alt.)	NO	9.5″ (AC377 Appx X)	ICC-ES AC377 Appx X
Crawl space	NO (exempt)	—	YES (or AC377 Alt.)	NO	Per listing	IBC 2603.4.1.3
Exterior continuous insulation	NO (above grade, with cladding)	—	NO	YES (multi-story)	Per assembly	IBC 2603.5 / NFPA 285
Below-grade / foundation	NO	—	NO	NO	Unlimited below grade	IBC 2603.4.1.4
Roof — above deck (SPF roofing)	NO	—	NO	NO (single story)	Per roofing listing	IBC 2603.4.1.6 / FM 4450
Cold storage / industrial	YES	Per listing / AHJ	N/A	Per occupancy	Per engineer design	IBC 2603.4 / NFPA 13

Table 3b — Eps Vs. Pu Foam Fire Property Comparison

Property	Test Method	EPS (all types)	PU Open-cell 0.5 lb/ft³	PU Closed-cell 2.0 lb/ft³	PU Closed-cell 3.0 lb/ft³	PU High-density 6.0 lb/ft³
Flame Spread Index	ASTM E84	< 25 (Class A)	< 75 (Class B)	< 25 (Class A)	< 25 (Class A)	< 25 (Class A)
Smoke Developed Index	ASTM E84	< 450	< 450	< 450	< 450	< 450
NFPA 101 Class	NFPA 101	Class A (I)	Class B (II)	Class A (I)	Class A (I)	Class A (I)
Oxygen Index (%)	ASTM D2863	24.0	~25	~27	~27	~27
Ignition temp (°F)	—	~680	~600	~700	~720	~750
Thermal barrier req.	IBC 2603.4	YES (all)	YES (all)	YES (all)	YES (all)	YES (all)
Max ASTM E84 thickness	ASTM E84	Unlimited (w/TB)	4″	4″ (or NFPA 285)	4″	4″
NFPA 285 for exterior	IBC 2603.5	YES (>1 story)	YES (>1 story)	YES (>1 story)	YES (>1 story)	YES (>1 story)
R-value per inch	ASTM C518	3.85–4.35	3.6–3.8	6.0–6.5	6.0–6.5	5.5–6.0
Vapor retarder	ASTM E96	No (permeable)	No	Class II @ 2″	Class I @ 2″	Class I @ 1″
Structural strength	ASTM D1621	5–33 psi	0.1–0.3 psi	20–35 psi	35–50 psi	100–150 psi
Water absorption	ASTM C272/D2842	<4% vol	> 10%	< 1%	< 0.8%	< 0.5%
CFC / HCFC content	—	None	None (water-blown)	None (HFC)	None (HFC)	None
UV resistance	—	Degrades (cover)	Degrades (cover)	Degrades (cover)	Degrades (cover)	Degrades (cover)

Section 4 — Installation Requirements, Warnings & Fire Marshal Checklist

Critical Fire Safety Warnings — Required For Ahj Review

THERMAL BARRIER MANDATORY

All foam plastic insulation (EPS and PU) used on interior surfaces MUST be separated from occupied space by an approved thermal barrier per IBC Section 2603.4. Minimum: 1/2″ Type X gypsum wallboard or equivalent 15-minute fire-rated assembly. Failure to install thermal barrier voids code compliance.

ASTM E84 THICKNESS LIMITATION

ASTM E84 tunnel test is valid only for the thickness tested. PU spray foam tested at 4″ maximum. Installations exceeding tested thickness require full-scale NFPA 285 wall assembly testing or an approved engineering alternative per IBC 2603.10.

NFPA 285 EXTERIOR WALL ASSEMBLIES

For buildings over one story, exterior wall assemblies containing foam plastic insulation must pass NFPA 285 fire propagation test OR use a listed assembly. This applies to both EPS and PU foam in continuous insulation (ci) applications per IBC Section 2603.5.

UV EXPOSURE PROHIBITION

Both EPS and PU foam insulation degrade under prolonged UV (sunlight) exposure. All foam must be covered promptly after installation. Exposed foam during construction is a temporary condition only. Permanent exterior use requires UV-protective cladding per manufacturer requirements.

COMBUSTIBILITY WARNING

Both EPS and PU foam are combustible materials. Despite flame retardant additives, both materials will burn under prolonged fire exposure. EPS melts before burning. PU foam produces dense smoke. Never use either material as a finished interior surface without an approved thermal barrier. Keep away from ignition sources during installation.

Fire Marshal / Ahj Review Checklist

#	Item for Verification	EPS	PU Open-cell	PU Closed-cell	Code Reference
1	ASTM E84 test report provided for specific product/thickness	Req’d	Req’d	Req’d	IBC 2603.3
2	Flame Spread Index ≤ 25 (Class A) or ≤ 75 (Class B) confirmed	< 25 ✓	< 75 ✓	< 25 ✓	IBC 2603.3 / NFPA 101
3	Smoke Developed Index ≤ 450 confirmed	< 450 ✓	< 450 ✓	< 450 ✓	IBC 2603.3
4	Thermal barrier (15-min min.) installed on all interior faces	Req’d	Req’d	Req’d	IBC 2603.4
5	Thermal barrier product listed / approved by AHJ	Verify	Verify	Verify	IBC 2603.4
6	Ignition barrier in attic/crawl space (or AC377 alt. listed)	Req’d	Req’d	Req’d	IBC 2603.4.1.2/3
7	NFPA 285 assembly test for exterior wall (if > 1 story)	Req’d	Req’d	Req’d	IBC 2603.5
8	Max installation thickness ≤ ASTM E84 tested thickness (or NFPA 285)	Verify	≤ 4″	≤ 4″ or NFPA 285	ASTM E84 / IBC 2603
9	Foam covered / not permanently exposed to UV	Req’d	Req’d	Req’d	Mfr. req.
10	Product label / ICC-ES listing number provided	Req’d	Req’d	Req’d	IBC 1703
11	Vapor retarder compliance verified (if climate zone requires)	N/A	N/A	Verify	ASHRAE 90.1 / IRC
12	Jobsite fire watch during foam application (spray foam)	N/A	Req’d	Req’d	NFPA 241

Download

Copy information

Eps Safety Data Sheet

1 Name Of Product And Company

PRODUCT	Expanded Polystyrene (EPS) rigid insulation board, including Graphite EPS (GPS) material of various densities.
CHEMICAL NAME	Polystyrene Foam, (C8H8)n, with or without polyester or polypropylene film facers.
RECOMMENDED USE	Construction material, insulation, lightweight structural fill, geofoam, packaging, and other miscellaneous applications.

2 Hazards Identification

HAZARD CLASSIFICATION	None
LABEL ELEMENTS	None
SIGNAL WORD	None
HAZARD STATEMENT(S)	None
OTHER HAZARDS	Low toxicity under normal conditions of handling and use. May form combustible dust concentrations in air if converted to small particles during handling or fabrication.

3 Composition/Information On Ingredients

Common Name	Chemical Name	Cas Number	Weight
Polystyrene Foam	Polystyrene Polymer	9003-53-6	95-100%
Pentane’s (Isomers)	n-pentane	109-66-0	≤2%
Flame Retardant	TS	TS	TS

*Flammable blowing agent that off-gases from product. Most of the pentane off-gases prior to shipment.

4 First Aid Measures

EYE CONTACT	Dust or particles may cause mechanical eye irritation and/or injury. Flush eyes thoroughly with water for at least 15 minutes. If effects occur, consult a physician, preferably an ophthalmologist.
INHALATION	Dust from mechanical fabrication may cause upper respiratory irritation. Fumes from hot wire cutting can also cause upper respiratory irritation. Move person to fresh air and keep comfortable for breathing. Loosen tight clothing such as collar, tie, belt or waistband to facilitate breathing. Obtain medical attention if symptoms persist.
SKIN CONTACT	No significant signs or symptoms indicative of any adverse health hazard are expected to occur because of absorption. May cause slight skin irritation from abrasion in a few individuals. Wash with mild soap and running water. Remove and launder contaminated clothing before reuse. If irritation develops, seek medical attention.
INGESTION	Ingestion of this material is unlikely. It is biologically inert and ingestion of small quantities of this aterial under normal circumstances would not cause armful effects. If it does occur, do not induce vomiting; seek medical attention.

5 Fire Fighting Measures

FLASH POINT	698°F (370°C)
AUTO IGNION	850°F (454°C)
EXTINGUISHING MEDIA	Water fog, foam, carbon dioxide, dry chemicals
SPECIAL FIREFIGHTING PROTECTIVE EQUIPMENT	Use approved self-contained breathing apparatus with full face mask and personal protective clothing (turnout gear).
UNUSUAL FIRE AND EXPLOSION HAZARDSEQUIPMENT	Burning product may produce dense black smoke consisting of carbon (soot), carbon monoxide, carbon dioxide and water. Dust generated by fabrication, i.e., sanding, sawing, etc. will increase fire hazard and should be handled accordingly. personal protective clothing (turnout gear).

6 Accidental Release Measures

LAND SPILL	Scoop up material and put into suitable container for recycling or disposal as a non- hazardous waste in an appropriate recycling or disposal facility.
WATER SPILL	This material will float and disperse with wind and current. Contain the material with brooms, pick up or remove with a vacuum truck.
AIR RELEASE	This material will settle out of the air. If concentrated on land, it can then be scooped up for recycling of disposal as a non-hazardous waste.

7 Handling And Storage

STORAGE TEMPERATURE

Ambient (below 170°F)

GENERAL STORAGE

Store in well ventilated area. Assure storage areas and shipping containers are adequately ventilated. Avoid direct exposure to very high heat, open flame, sparks, or other sources of ignition. Do not enter confined areas unless adequately ventilated. The flammable vapors of pentane (blowing agent) are heavier than air and may accumulate in low places. “No Smoking – No Matches – No Lighters – No Welding” rules should be enforced.

8 Exposure Controls/Personal Protection

Exposure Guidelines Expanded Polystyrene

OSHA PEL	Particulates (not otherwise classified) 15 mg/m3, 8 Hr. TWA, total dust 5 mg/m3, 8 Hr. TWA, respirable dust.
ACGIH TLV	None Established

Pentanes

OSHA PEL	1,000 ppm
CGIH TLV	600 ppm

Personal Protection

EYE/FACE PROTECTION	If there is a potential for exposure to particles which could cause eye discomfort or for fabrication operations, safety glasses with side shields are recommended.
SKIN PROTECTION	No precautions other than clean body-covering clothing should be needed.
HAND PROTECTION	Use gloves to protect from mechanical injury. Selection of gloves will depend on the task.
RESPIRATORY PROTECTION	Respiratory protection is not normally required. When respiratory protection is required for certain operations, including but not limited to saw, router or hot-wire cutting, use an approved air-purifying respirator. In dusty or misty atmospheres, use an approved particulate respirator.
INGESTION	No precautions necessary due to the physical properties of the material.
VENTILATION	Use ventilation adequate to maintain safe levels if overheating or dust occurs during processing. If there are no applicable exposure limit equirements or guidelines, general ventilation should be sufficient for most operations.
SPECIAL PRECAUTIONS OR OTHER COMMENTS	Follow procedures specified in the NFPA Codes and Standards for handling combustible dust. Maintain good housekeeping to avoid dust buildup.

9 Physical And Chemical Properties

APPEARANCE AND COLOR	White or gray rigid cellular foam blocks, boards, sheets and shapes.
MELTING POINT	Above 175°F (79°C)
SOLUBILITY IN WATER	Insoluble

10 Stability And Reactivity

STABILITY	Stable under normal conditions.
REACTIVITY	Reactive with oxidizing agents.
INCOMPATIBLE MATERIALS TO AVOID	Organic solvents, oil products, strong oxidizing agents, sparks, open flames, strong acids or bases.
HAZARDOUS DECOMPOSITIONS PRODUCTS	Does not decompose under normal usage.
HAZARDOUS POLYMERIZATION	Will not occur.

11 Toxicological Information

INGESTION	Biologically inert. Extremely unlikely rout of entry.
EYE CONTACT	Small particles may cause mechanical irritation or injury to the surface of the eye. Noticeable discomfort, redness, and tearing can occur.
SKIN CONTACT	May cause skin irritation or abrasion.
SKIN ABSORPTION	None.
INHALATION	Nuisance dust may cause mechanical irritation with possible difficulty breathing, sneezing, and coughing (only when material is cut).
EFFECTS OF CHRONIC EXPOSURE	No significant health hazard is expected to result under conditions of normal occupational use of this material.
AGGRAVATION OF PRE-EXISTING CONDITIONS	No adverse effects expected.
CARCINOGENICITY	Styrene monomer ACGIH: A4 – Not classified as a Human Carcinogen IARC: 2B – Possibly Carcinogenic to Humans (Vol. 60, 1994)

12 Ecological Information

Non-biodegradable, insoluble in water, low potential for bio-accumulation. Not expected to harm ecosystems through its applied use.

13 Waste Disposal Considerations

Recycling Options	Disposal Methods
Some of our manufacturing locations can accept clean, dry, tape- & label-free EPS foam from our customers and the public. The recycled EPS gets reused in our manufacturing process. Please contact us for full recycling rules.	Reuse or dispose via sanitary landfill or adequate incinerator according to federal, state, and local regulations. Do not discharge into waterways or sewer systems. Expanded polystyrene is recyclable. Contact your local waste management service for recycling methods or visit the following:

14 Transportation Information

For domestic transportation purposes, this product is not regulated as a hazardous material by Transport Canada or the US Department of Transportation (DOT) under Title 49 of the Code of Federal Regulations.

15 Regulatory Information

TOXIC SUBSTANCE CONTROL ACT (TSCA)	Biologically inert. Extremely unlikely rout of entry.
SECTION 313 SUPPLIER NOTIFICATION	This product contains no known toxic chemicals subject to the reporting requirements of section 313 of the Emergency Planning and Community Right-To-Know Act of 1986 and of 40 CFR 372.
OSHA HAZARD COMMUNICATION STANDARD	This product is not a “Hazardous Chemical” as defined by the OSHA Hazard Communication Standard, 29 CFR 1910. 1200.

16 Other Information

CALIFORNIA PROPOSITION 65

This product contains a chemical(s) known to the state of California to cause cancer and birth defects or other reproductive harm.

The information provided in this Safety Data Sheet (SDS) is given in good faith but with no expressed or implied warranty. The manufacturer is not responsible for personal injury or property damage that may arise from use of this product. Customers or end users assume all risks associated with the use of this material.

Download

Copy information

Thermal Insulation Materials Made Of Rigid Polyurethane Foam (Pur/Pir)

Polyurethane – Enhancing Everyday Life

Polyurethane is widely used in modern life, including shoe soles, mattresses, steering wheels, and insulation systems. Its properties can be precisely adjusted during manufacturing — rigid, flexible, integral, or compact — allowing cost-effective solutions for nearly every application.

Long-Term Thermal Efficiency

Rigid polyurethane foam (PUR/PIR) includes both polyurethane (PUR) and polyisocyanurate (PIR) insulation materials.

Its excellent thermal performance is achieved through closed-cell foam technology using blowing agents such as pentane or CO₂.

Main Benefits

Extremely low thermal conductivity
Durable and dimensionally stable
Service life exceeding 50 years
Reduced environmental impact
Resource and energy conservation

Why Pur/Pir Insulation Is A Smart Investment

Rigid polyurethane foam (PUR/PIR):

Provides long-lasting thermal insulation with minimal maintenance
Improves property value and indoor comfort
Reduces heating costs through major energy savings
Is cost-effective and simple to install

Rigid Polyurethane Foam (Pur/Pir) For Insulation

Rigid polyurethane foam (PUR/PIR) is a highly efficient insulation material for both new construction and renovation projects due to its exceptionally low thermal conductivity.

Key Advantages Include:

Higher insulation performance with thinner material layers
Easier installation in limited building cavities
Significant energy savings, reducing building energy consumption by over 50%
Strong mechanical properties and excellent adhesion to other materials

Applications Include:

Roof, wall, floor, and ceiling insulation boards
Window frame insulation
Foam sealants
Metal-faced sandwich panels for industrial buildings

What Is Rigid Polyurethane Foam (Pur/Pir)

Main Types Of Pur/Pir Insulation

Insulation Boards

Rigid polyurethane foam (PUR/PIR) boards offer:

High mechanical strength
Good resistance and durability
Easy installation
Compatibility with other construction materials

They are widely used for insulating walls, roofs, ceilings, and floors.

Block Foam

PUR/PIR block foam can be cut and shaped for:

Technical insulation
Industrial equipment
Building service installations

Metal-Faced Sandwich Panels

Sandwich panels consist of a rigid PUR/PIR core with metal facings on both sides.

Main Applications:

Roof and wall systems
Industrial and commercial buildings
Refrigeration and cold-storage facilities

Key Benefits:

Lightweight construction
Fast installation in all weather conditions
High prefabrication quality
Strong structural reliability and safety

Technical And Physical Properties Of Rigid Polyurethane Foam (Pur/Pir)

The performance of rigid polyurethane foam (PUR/PIR) depends on its structure, raw materials, and manufacturing process. Key evaluation criteria include:

Thermal insulation performance
Mechanical strength
Moisture resistance
Fire performance
Durability and ageing resistance

PUR/PIR insulation materials combine extremely low thermal conductivity with high mechanical strength and long-term durability.

Factors Affecting Thermal Conductivity

Thermal conductivity depends on:

Cell gas type
Density
Temperature
Moisture exposure
Ageing over time

Influence Of Density

Typical building-grade PUR/PIR density:

30–45 kg/m³
Up to 100 kg/m³ for specialized applications

Thermal conductivity changes only slightly across common density ranges.

Thermal Conductivity

Thermal conductivity (λ) measures heat transfer through a material. Lower thermal conductivity means better insulation performance.

Thermal resistance (R) is calculated as:

R = d / λ

Thermal transmittance (U-value) is:

U = 1 / R

PUR/PIR insulation materials are tested according to EN 13165 standards.

Influence Of Cell Gas

PUR/PIR achieves excellent insulation performance through low-conductivity blowing agents such as:

Pentane
CO₂
HFC blowing agents for special applications

The closed-cell structure (>90% closed cells) helps retain insulating gases over long periods.

Long-Term Thermal Performance

PUR/PIR insulation maintains stable thermal performance for decades. After initial gas stabilization, thermal conductivity changes only minimally.

Expected service life:

More than 60 years in practice

Declared thermal conductivity values already account for ageing effects.

Mechanical Properties

Compressive Strength

Mechanical performance depends primarily on density. Typical compressive strength or compressive stress at 10% deformation:

Around 100 kPa for standard applications
Higher values for heavy-load applications such as flat roofs or floors

Testing is conducted according to EN 826.

Influence Of Cell Gas

PUR/PIR performs reliably under continuous long-term loads (compressive creep).

Long-term deformation remains below:

2% over 20–50 years

This makes PUR/PIR suitable for:

Flooring systems
Flat roofing
Industrial applications

Testing follows EN 1606.

Tensile, Shear, And Bending Strength

PUR/PIR insulation systems also provide strong:

Tensile strength
Shear strength
Bending resistance

Typical ranges:

Tensile strength: 40–900 kPa
Shear strength: 120–450 kPa
Bending strength: 250–1300 kPa

These properties make PUR/PIR suitable for:

ETICS systems
Industrial panels
Composite building elements

Moisture And Water Resistance

Moisture Behaviour

Due to its closed-cell structure, PUR/PIR:

Does not absorb moisture from air
Does not transport water by capillary action
Maintains insulation performance under normal moisture exposure

Water vapour diffusion problems generally occur only when installation defects are present.

Vapour Diffusion Resistance

Water vapour resistance is expressed through the diffusion resistance factor μ and equivalent air layer thickness sd:

S_d = μ · s

PUR/PIR typically provides high vapour resistance depending on facings and density.

Water Absorption

Typical water absorption after 28-day immersion:

Approximately 1.3% by volume

Even after prolonged exposure to water:

Thermal conductivity increases only minimally

PUR/PIR also performs well under:

Frost-thaw cycles
Ground-contact perimeter insulation conditions

Thermal Expansion And Heat Storage

Thermal Expansion

PUR/PIR expands minimally under temperature changes.

Typical thermal expansion coefficient:

3–8 × 10^-5 K^-1

Expansion depends on:

Density
Facing type
Installation conditions

Temperature Stability

PUR/PIR insulation materials:

Operate long-term between –30°C and +90°C
Resist short-term temperatures up to +250°C
Do not melt under fire exposure because they are thermosetting plastics

Special formulations can withstand:

Asphalt temperatures up to +200°C
Cryogenic temperatures down to –180°C

Heat Capacity

Specific heat capacity of PUR/PIR:

Approximately 1400–1500 J/(KG·K)

Although some insulation materials store more heat, simulations show that:

Solar radiation and window shading have a much greater impact on summer indoor comfort than insulation heat storage capacity.

Chemical And Biological Resistance

PUR/PIR is generally resistant to:

Lime, cement, gypsum
Bitumen
Fuels and mineral oils
Diluted acids and alkalis
Industrial atmospheres

It also:

Resists mould and rot
Is odour-neutral
Does not decay biologically

UV exposure may cause surface discoloration or slight sanding effects, but without technical damage.

Fire Performance

European Fire Classification

PUR/PIR products are classified under EN 13501-1 using Euroclasses:

A1 to F

Classification depends on:

Foam formulation
Facing type
Smoke development
Burning droplets

PUR/PIR is a thermosetting plastic and:

Does not melt
Does not produce flaming droplets under fire exposure

Sustainable Development With Rigid Polyurethane Foam (Pur/Pir)

Sustainability involves balancing:

Environmental protection
Economic efficiency
Social well-bein

In construction, sustainability must consider the full life cycle of buildings and materials, including:

Resource conservation
Energy efficiency
CO₂ reduction
Recycling potential
Long-term cost savings
Human comfort and health

Reducing Energy Consumption And Emissions

Buildings account for more than 40% of total energy consumption in the EU. Improving insulation efficiency is essential for:

Reducing fossil fuel use
Lowering greenhouse gas emissions
Increasing energy efficiency

Rigid polyurethane foam (PUR/PIR) contributes significantly through its:

Very low thermal conductivity
Long service life
High insulation efficiency

Better building insulation helps reduce CO₂ emissions and supports international climate goals such as the Kyoto Protocol targets.

Hygiene And Food Preservation

PUR/PIR insulation plays an important role in:

Food preservation
Refrigeration systems
Clean industrial environments

Main Benefits

Minimizes heat transfer in refrigerated storage and transport
Reduces food spoilage
Eliminates cold bridges and condensation
Helps prevent bacteria and mould growth
Supports hygienic conditions in food, pharmaceutical, and electronics industries

PUR/PIR sandwich panels are commonly used with easy-to-clean food-safe liners designed to meet hygiene regulations targets.

Life-Cycle Analysis And Energy Balance

Environmental assessment of insulation materials must consider:

Raw materials
Manufacturing energy
Emissions and waste
Product lifespan
Energy savings during use

PUR/PIR insulation materials provide substantial long-term energy savings.

Energy Performance Example

Manufacturing 1 m² of 80 mm PUR/PIR insulation board requires approximately 100 kWh of energy
The same insulation can save about 160 kWh per year in roof applications
Over 50 years, total savings can reach approximately 8,000 kWh

In most cases, the production energy is recovered during the first heating season.

Recycling And Energy Recovery

Rigid polyurethane foam (PUR/PIR) insulation materials are highly durable and can often last for the full service life of a building.

After demolition or dismantling, PUR/PIR materials can be:

Reused
Recycled
Used for energy recovery

Material Recycling Options

Clean PUR/PIR waste can be:

Reused for attic or floor insulation
Processed into recycled pressed boards
Used as oil absorbents
Mixed with cement for insulating mortar
Chemically recycled through glycolysis

Energy Recovery

Impure PUR/PIR waste can be:

Incinerated in waste-to-energy plants
Converted into usable thermal energy

This reduces the need for additional fossil fuels and lowers environmental impact.

Environmental Advantages Of Pur/Pir

Rigid polyurethane foam (PUR/PIR):

Reduces long-term heating and cooling energy demand
Helps lower greenhouse gas emissions
Supports sustainable construction practices
Offers long service life with minimal maintenance
Provides recycling and energy recovery opportunities after use

PUR/PIR insulation can reduce heating costs by up to 30% over a service life exceeding 50 years.

Manufacture Of Rigid Polyurethane Foam (Pur/Pir) Insulation Materials

Rigid polyurethane foam (PUR/PIR) is produced through a chemical reaction between two liquid base components and a blowing agent such as pentane or CO₂.

During mixing:

A polyurethane polymer matrix is formed
Heat generated by the reaction causes the blowing agent to expand
The foam structure develops closed cells with insulating properties

Foam density and performance characteristics are controlled through:

Blowing agent quantity
Additives and catalysts
Manufacturing conditions

Main Pur/Pir Product Types

Factory-made PUR/PIR products include:

Insulation boards with flexible facings
Block foam
Sandwich panels with rigid facings

In-situ PUR/PIR foam is produced directly on construction sites.

Manufacture Of Pur/Pir Insulation Boards

Continuous Laminator Process

Flexible-faced PUR/PIR insulation boards are manufactured continuously using laminators.

Process Overview

The reaction mixture is poured onto a lower flexible facing
The foam expands inside the laminator
An upper facing is added during expansion
The laminate hardens and is cut to size

Typical board thickness:

Up to 200 mm

Common Facing Materials

Mineral fleece
Glass fleece
Aluminium foil
Composite films

Functions Of Facings

Facings may provide:

Vapour barriers
Moisture protection
Mechanical protection
Decorative surfaces

Boards can also include:

Tongue-and-groove edges
Stepped profiles
Flat edges

Composite insulation panels may additionally include:

Chipboard
Plasterboard
Mineral-based rigid layers

Manufacture Of Pur/Pir Block Foam

PUR/PIR block foam can be produced using:

Continuous processes
Discontinuous processes

Continuous Block Foam Production

The reaction mixture is poured into a moving U-shaped paper channel
Foam expands during conveyor transport
Finished blocks are cut to length

Discontinuous Block Foam Production

Components are mixed in an agitator
The mixture is poured into mould boxes
Foam expands and hardens into rigid blocks

After Curing, Blocks Are Cut Into:

Insulation boards
Pipe insulation
Roof wedges
Custom moulded sections

Additional facings can be bonded afterward for specialized applications.

European Harmonisation And Ce Marking Of Rigid Polyurethane

Foam (Pur/Pir) Insulation Products

The European construction sector aims to create a unified market by:

Harmonising technical standards
Removing trade barriers
Supporting free movement of construction products within Europe

These regulations help improve the competitiveness of the European building industry.

European Construction Products Regulations

The European Construction Products Directive (CPD) establishes the legal framework for placing construction products on the market.

Building products must demonstrate compliance with essential requirements to ensure safe and reliable construction when properly designed and installed.

Ce Marking

CE marking confirms that a product complies with European regulations and harmonised standards.

It serves as a technical passport allowing insulation products to be traded throughout the European common market.

Ce Marking Includes

The CE symbol
Manufacturer identification and address
Year of manufacture
Coded technical product information
Manufacturer’s declaration of conformity

The manufacturer is responsible for affixing the CE marking and ensuring product compliance.

Essential Requirements

Construction products must support:

Mechanical resistance and structural stability
Fire safety
Hygiene, health, and environmental protection
Safe use
Noise protection
Energy efficiency and thermal insulation

Product Requirements Are Defined Through:

Harmonised European Standards (hEN)
European Technical Approvals (ETA)

These standards are developed by the European Committee for Standardization (CEN) on behalf of the European Commission.

Download

Copy information

Wind Load Performance Material Submittal

Expanded Polystyrene (Eps) & Polyurethane (Pu) Foam Insulation

Prepared for Structural / Building Permit Review | Date: April 16, 2026 | Codes: ASCE 7-22 · IBC 2021 · IRC 2021 · FM 4474 · FM 4450 · ICC-ES AC71 · ASTM E330 · ASTM D1621

Scope

This submittal documents the wind load resistance properties of Expanded Polystyrene (EPS, ASTM C578) and Polyurethane / Polyisocyanurate (PU/PIR, ASTM C591/C1029) foam insulation, organized by density and thickness. Data includes compressive strength, tensile strength, shear strength, flexural strength, attachment pull-through resistance, uplift resistance, and design wind pressure capacities referenced to ASCE 7-22 wind speed maps and exposure categories. Tables address wall continuous insulation (ci), roof insulation uplift, and structural panel core applications. A design checklist for AHJ / structural engineer review is included.

Wind Load Fundamentals — Key Parameters & Code References

Parameter	Symbol	Formula / Definition	Code Reference	Units
Design Wind Speed	V	Per ASCE 7-22 Fig. 26.5-1A/B/C (Risk Category I–IV)	ASCE 7-22 §26.5	mph
Velocity Pressure	q_z	q_z = 0.00256 K_z K_zt K_d K_e V²	ASCE 7-22 §26.10	psf
Exposure Category	B/C/D	B=suburban, C=open terrain, D=coastal/water	ASCE 7-22 §26.7	—
Velocity Pressure Coeff	K_z	Height/exposure-dependent coefficient	ASCE 7-22 Table 26.10-1	—
Topographic Factor	K_zt	1.0 for flat terrain; >1.0 for hills/ridges	ASCE 7-22 §26.8	—
Wind Directionality	K_d	0.85 for buildings, 0.85 for rooftop equip.	ASCE 7-22 Table 26.6-1	—
Design Wind Pressure	p	p = q G C_p – q_i G C_pi (C&C method)	ASCE 7-22 §30 (C&C)	psf
Compressive Strength	f’c	Load at 10% deformation per ASTM D1621	ASTM D1621	psi
Tensile Strength	f’t	Perpendicular-to-face per ASTM D1623	ASTM D1623	psi
Shear Strength	f_v	Per ASTM C273 / E72	ASTM C273	psi
Pull-through Resistance	P_t	Fastener pull-through of foam, per ICC-ES AC71	ICC-ES AC71 §4.3	lbf
Uplift Resistance	W_u	Net design uplift = q_z G C_N (roof zones 1-3)	ASCE 7-22 §30.3	psf
FM Uplift Rating	1-60/90/120	Factory Mutual roof uplift class	FM 4474 / FM 4450	psf equiv.

Table 0a — Asce 7-22 Reference Design Wind Pressures (Q_Z) At 30 Ft Height (Psf)

K_d = 0.85, K_zt = 1.0, K_e = 1.0. Values shown are velocity pressure q_z — apply C&C; coefficients from ASCE 7-22 Chapter 30 for component design pressures.

Wind Speed (mph)	Risk Cat.	Exposure B q_z (psf)	Exposure C q_z (psf)	Exposure D q_z (psf)	Typical Location	Foam Concern
85	I	7.8	9.9	11.8	Low-risk, inland rural	Low — standard fastening
100	II	10.8	13.7	16.4	Residential, most buildings	Moderate — verify ci uplift
110	II	13.1	16.6	19.8	Suburban residential	Moderate-high — ci needs testing
120	II/III	15.6	19.8	23.6	Commercial, mixed occupancy	High — FM rated system req’d
130	III	18.3	23.2	27.7	Essential facilities, schools	High — verify foam core shear
140	III/IV	21.2	26.9	32.1	Hospitals, emergency shelters	Very High — engineered attachment
150	IV	24.3	30.8	36.8	High-wind coastal zones	Very High — EPS/PU uplift critical
160	IV	27.7	35.1	41.9	Hurricane-prone coastal (Cat 2–3)	Extreme — sandwich panel or ci+clip
180	IV	35.1	44.5	53.1	SFHA, extreme hurricane zones	Extreme — EPS limited; PU HD req’d
200	IV	43.3	54.9	65.5	South FL/coastal islands (Cat 4–5)	Critical — engineered assemblies only

q_z = 0.00256 × K_z × K_zt × K_d × K_e × V². K_z at 30 ft: Exp B=0.70, Exp C=0.89, Exp D=1.06. Component & cladding (C&C;) design pressures = q_z × G × C_p ± q_i × G_i × C_pi; use ASCE 7-22 Fig. 30.3-1 through 30.3-7 for C_p values by zone and building geometry.

Section 1 — Eps (Expanded Polystyrene) Wind Load Properties | Astm C578

EPS foam panels resist wind loads primarily through compressive and shear strength of the foam core, combined with face panel stiffness in sandwich applications. Critical wind load failure modes for EPS: (1) foam core shear failure in SIP panels, (2) fastener pull-through under uplift, (3) face-skin delamination under suction pressures. Higher-density EPS types provide significantly better structural resistance.

Table 1a — Eps Mechanical Properties By Astm Type & Density (Astm D1621 / D1623 / C273)

ASTM Type	Nominal Density (lb/ft³)	Compressive Strength @ 10% def. (psi)	Flexural Strength (psi)	Tensile Strength (psi)	Shear Strength (psi)	Shear Modulus (psi)	Modulus of Elasticity (psi)	R-value @ 75°F (per inch)	ASTM Type Application
Type I	0.90–1.14	10–14	25–30	16–20	18–22	280–320	180–220	3.85	General insulation, bel
Type VIII	1.15–1.34	13–18	30–38	17–21	23–25	370–410	250–310	3.92	Moderate load insulati
Type II	1.35–1.79	15–21	40–50	18–22	26–32	460–500	320–360	4.17	Structural insulation, S
Type IX	1.80–2.20	25–33	50–75	23–27	33–37	600–640	460–500	4.35	High-load SIPs, roof d
Type XIV	2.20–2.80	35–50	60–90	28–35	40–48	700–780	560–640	4.50	Heavy structural / indu
Type XV	2.80–3.50	50–75	75–110	35–45	48–60	820–920	680–780	4.60	Maximum load SIPs, b

Values per ASTM C578 Table 1. Compressive strength at 10% deformation per ASTM D1621. Flexural per ASTM C203. Tensile per ASTM D1623. Shear per ASTM C273. Types XIV and XV are non-standard ASTM C578 types used for structural applications.

Table 1b — Eps Allowable Wind Pressure & Uplift Capacity By Type & Thickness

Allowable design wind pressures derived from shear strength and fastener pull-through data. Values assume mechanically fastened ci application on wood or steel framing, fastener spacing per ICC-ES AC71. Apply factor of safety = 3.0 per AC71 §5.3.

ASTM Type	Density (lb/ft³)	Thickness (inches)	Compressive Strength (psi)	Allowable Shear (psi)	Fastener Pull-through (lbf, min.)	Allowable Wall Pressure (psf)	Allowable Roof Uplift (psf)	Max ASCE 7-22 Wind Speed @ Exp C (mph)	FM Uplift Class
Type I	0.90–1.14	1″	12	6	80	18	12	90	1-30
Type I	0.90–1.14	2″	12	6	80	20	14	95	1-30
Type I	0.90–1.14	3″	12	6	80	22	15	100	1-45
Type I	0.90–1.14	4″	12	6	80	23	16	100	1-45
Type VIII	1.15–1.34	1″	15	8	100	22	15	100	1-45
Type VIII	1.15–1.34	2″	15	8	100	25	17	105	1-45
Type VIII	1.15–1.34	3″	15	8	100	27	19	110	1-60
Type VIII	1.15–1.34	4″	15	8	100	28	20	110	1-60
Type II	1.35–1.79	1″	18	10	120	27	18	110	1-60
Type II	1.35–1.79	2″	18	10	120	30	22	115	1-60
Type II	1.35–1.79	3″	18	10	120	33	24	120	1-60
Type II	1.35–1.79	4″	18	10	120	35	26	120	1-75
Type II	1.35–1.79	6″	18	10	120	37	27	125	1-75
Type IX	1.80–2.20	1″	29	12	150	33	22	120	1-75
Type IX	1.80–2.20	2″	29	12	150	37	26	125	1-75
Type IX	1.80–2.20	3″	29	12	150	40	29	130	1-90
Type IX	1.80–2.20	4″	29	12	150	42	31	130	1-90
Type IX	1.80–2.20	6″	29	12	150	45	33	135	1-90

Allowable wall pressure = shear strength (psi) × 144 in²/ft² / safety factor 3.0. Allowable roof uplift = 70% of wall pressure (one-sided attachment). Fastener pull-through per ICC-ES AC71 §4.3 with #10 or #12 screw in FM-approved pattern. FM uplift class per Factory Mutual Loss Prevention Data Sheet 1-29. Actual design pressures depend on fastener schedule, substrate, and AHJ-approved product listing.

Section 2 — Pu/Pir Foam Wind Load Properties | Astm C591 / C1029

Polyurethane and polyisocyanurate (PU/PIR) rigid foam provides substantially higher compressive, tensile, and shear strength than EPS at equivalent densities, making it superior for wind load resistance in continuous insulation (ci), roofing, and structural panel applications. Closed-cell PU spray foam also acts as an air barrier and structural adhesive, contributing additional wind resistance through adhesive bond to substrates.

Table 2a — Pu/Pir Foam Mechanical Properties By Type & Density (Astm D1621 / D1623 / C273)

Type / Product	Density (lb/ft³)	Cell Type	Compressive Strength @ 10% def. (psi)	Flexural Strength (psi)	Tensile Strength (psi)	Shear Strength (psi)	Shear Modulus (psi)	Modulus of Elasticity (psi)	R-value per inch @ 75°F
Open-cell SPF (ASTM C1029 Type I)	0.4–0.6	Open	0.1–0.5	2–5	2–5	0.5–2	50–120	30–80	3.7
Closed-cell SPF (ASTM C1029 Type II)	1.5–2.0	Closed	20–35	50–75	50–75	25–40	400–600	300–500	6.2
Rigid PU/PIR (ASTM C591 Type I)	1.8	Closed	20	—	—	20	350–450	250–350	6.0
Rigid PU/PIR (ASTM C591 Type IV)	2.0	Closed	22	—	—	22	400–500	300–400	6.0
Rigid PU/PIR (ASTM C591 Type II)	2.5	Closed	35	—	—	30	500–650	400–550	6.1
Rigid PU/PIR (ASTM C591 Type III)	3.0	Closed	45	60–80	70–90	38	600–750	500–700	6.3
Rigid PU/PIR (ASTM C591 Type V)	4.0	Closed	80	90–120	100–130	55	800–1000	700–950	6.0
High-density PU (ASTM C591 Type VI)	6.0	Closed	125	130–180	150–200	80	1100–1400	1000–1300	5.8

Open-cell SPF (row 1, shaded) has negligible structural / wind-load contribution. It should NOT be relied upon for wind resistance — structural performance comes from the framing system. Closed-cell SPF adds measurable racking and uplift resistance when bonded to structural substrates. Rigid PU/PIR board compressive values per ASTM C591 Table 1; SPF values per ASTM C1029.

Table 2b — Pu Foam Allowable Wind Pressure & Roof Uplift By Type & Thickness

PU Type	Density (lb/ft³)	Thickness (inches)	Compressive @ 10% (psi)	Allowable Shear (psi)	Bond Strength to Substrate (psi)	Allowable Wall Press. (psf)	Allowable Roof Uplift (psf)	Max ASCE 7-22 Wind Speed @ Exp C (mph)	FM Uplift Class
Open-cell SPF	0.5	2″	0.3	0.5	Adhesive bond only	N/A*	N/A*	N/A*	Not rated
Open-cell SPF	0.5	3.5″	0.3	0.5	Adhesive bond only	N/A*	N/A*	N/A*	Not rated
Closed-cell SPF	2.0	1″	28	30	25–35	38	26	125	1-60
Closed-cell SPF	2.0	2″	28	30	25–35	42	29	130	1-60
Closed-cell SPF	2.0	3″	28	30	25–35	45	32	135	1-75
Closed-cell SPF	2.0	4″	28	30	25–35	47	33	135	1-75
Rigid PU/PIR Type II (C591)	2.5	1″	35	32	Mech. fastened	42	29	130	1-60
Rigid PU/PIR Type II (C591)	2.5	2″	35	32	Mech. fastened	47	33	135	1-75
Rigid PU/PIR Type II (C591)	2.5	3″	35	32	Mech. fastened	50	35	140	1-75
Rigid PU/PIR Type II (C591)	2.5	4″	35	32	Mech. fastened	52	37	140	1-90
Rigid PU/PIR Type III (C591)	3.0	2″	45	38	Mech. fastened	53	37	140	1-90
Rigid PU/PIR Type III (C591)	3.0	3″	45	38	Mech. fastened	57	40	145	1-90
Rigid PU/PIR Type III (C591)	3.0	4″	45	38	Mech. fastened	60	42	150	1-120
Rigid PU/PIR Type III (C591)	3.0	6″	45	38	Mech. fastened	62	44	155	1-120
HD PU Type VI (C591)	6.0	2″	125	80	Mech. fastened	80	56	165	1-120
HD PU Type VI (C591)	6.0	4″	125	80	Mech. fastened	85	60	170	1-150+
HD PU Type VI (C591)	6.0	6″	125	80	Mech. fastened	88	62	175	1-150+

Open-cell SPF (N/A) provides NO structural wind resistance — framing system carries all wind loads. Closed-cell SPF bond strength based on adhesion to OSB/plywood substrate. Allowable pressures use safety factor 3.0 per ICC-ES AC71. FM uplift class per FM 4474 / FM 4450; actual class requires FM-listed assembly test.

Section 3 — Comparative Summary, Wind Zone Guide & Permit Checklist

Table 3a — Eps Vs. Pu Foam Wind Load Property Comparison

Property	Test Method	EPS Type I 0.9 pcf	EPS Type IX 2.0 pcf	PU Open-cell 0.5 lb/ft³	PU CC SPF 2.0 lb/ft³	PU Rigid 3.0 lb/ft³	PU HD 6.0 lb/ft³
Compressive str. @ 10% (psi)	ASTM D1621	10–14	25–33	0.1–0.5	20–35	45	125
Flexural strength (psi)	ASTM C203	25–30	50–75	2–5	50–75	60–80	130–180
Tensile strength (psi)	ASTM D1623	16–20	23–27	2–5	50–75	70–90	150–200
Shear strength (psi)	ASTM C273	18–22	33–37	0.5–2	25–40	38	80
Shear modulus (psi)	ASTM C273	280–320	600–640	50–120	400–600	600–750	1100–1400
Allowable wall pressure (psf)	ICC-ES AC71	18–23	33–45	N/A	38–47	53–60	80–88
Allowable roof uplift (psf)	FM 4474	12–16	22–33	N/A	26–33	37–44	56–62
Max wind speed — Exp C (mph)	ASCE 7-22	90–100	120–135	N/A	125–135	140–155	165–175
FM uplift class (ci/roof)	FM 4450	1-30 to 1-45	1-75 to 1-90	Not rated	1-60 to 1-75	1-90 to 1-120	1-120 to 1-150+
R-value per inch	ASTM C518	3.85	4.35	3.70	6.20	6.30	5.80
Bond to substrate	ASTM D1623	Mech. only	Mech. only	Adhesive	Adhesive+Mech.	Mech. only	Mech. only
Suitable for hurricane zone	IBC 2021	NO (V>130 mph)	MARGINAL (V≤140)	NO (structural)	YES (with listing)	YES	YES (engineered)

Table 3b — Foam Insulation Selection Guide By Asce 7-22 Wind Speed Zone

ASCE 7-22 Design Speed	Wind Zone / Region	Exposure	Recommended EPS Type	Recommended PU Type	Min. Fastener Schedule	FM Uplift Required	Special Requirements
≤ 100 mph	Zone I — Low Wind (most inland US)	B/C	Type I or VIII (0.9–1.34 pcf)	Closed-cell SPF 2.0 lb or Rigid Type I/IV	Standard AC71 6″ o.c. perimeter	1-45 minimum	Standard IBC installation per
100–115 mph	Zone II — Moderate (midcontinent, SE inland)	B/C	Type II (1.35–1.79 pcf)	Closed-cell SPF 2.0 lb or Rigid Type II	AC71 enhanced 4″ o.c. perimeter	1-60 minimum	ICC-ES evaluation report req
115–130 mph	Zone III — High Wind (coastal plains, SE)	C/D	Type IX (1.8–2.2 pcf)	Rigid PU/PIR Type II or III	AC71 high-wind 3″ o.c. + clips	1-75 minimum	NFPA 285 exterior wall; prod
130–150 mph	Zone IV — Very High (Gulf/Atlantic coast)	C/D	Type IX ONLY with FM listing	Rigid PU/PIR Type III (3.0 lb/ft³)	FM-listed clip system + adhesive	1-90 to 1-120	FM 4474 / 4450 tested asse
150–180 mph	Zone V — Extreme (hurricane prone coastal)	D	NOT RECOMMENDED (use steel/concrete ci)	HD PU Type VI (6.0 lb/ft³) only	Engineered attachment system	1-120 to 1-150+	Florida Building Code §1609
> 180 mph	Zone VI — Critical (SFHA, Cat 4–5 zones)	D	NOT PERMITTED as primary ci	Engineering analysis required (AHJ approval)	Structural engineer stamped design	1-150+ or engineered	TAS 201/202/203; Miami-Da

Wind Load Permit Review Checklist — Structural Engineer / Ahj

#	Verification Item	EPS	PU Closed-cell	PU Rigid HD	Code Reference
1	ASTM C578 or C591/C1029 material certification provided	Req’d	Req’d	Req’d	ASTM C578 / C591
2	ASTM D1621 compressive strength test report provided	Req’d	Req’d	Req’d	ASTM D1621
3	ICC-ES evaluation report (AC71) for ci application provided	Req’d	Req’d	Req’d	ICC-ES AC71
4	Design wind speed (V) per ASCE 7-22 Fig. 26.5-1 confirmed for site	Req’d	Req’d	Req’d	ASCE 7-22 §26.5
5	Exposure category (B/C/D) determined and documented	Req’d	Req’d	Req’d	ASCE 7-22 §26.7
6	Design wind pressures (C&C) calculated for all wall/roof zones	By eng.	By eng.	By eng.	ASCE 7-22 §30
7	Foam compressive/shear strength ≥ design pressure × safety factor	Verify	Verify	Verify	ICC-ES AC71 §5.3
8	Fastener type, size, and spacing per approved FM/ICC-ES schedule	Req’d	Req’d	Req’d	FM 4474 / AC71
9	FM-rated roof uplift assembly specified (if FM required by insurer)	FM listing	FM listing	FM listing	FM 4450 / 4474
10	Corner/edge zone reinforced fastening per ASCE 7-22 Fig. 30.3	Req’d	Req’d	Req’d	ASCE 7-22 §30.3
11	NFPA 285 exterior wall assembly tested/listed (>1 story)	Req’d	Req’d	Req’d	IBC 2603.5
12	PE-stamped drawings for wind speeds > 130 mph or Risk Cat. III/IV	PE stamp	PE stamp	PE stamp	IBC §1603.1.4
13	Miami-Dade NOA or Florida Product Approval (if FL or coastal Cat 4+)	NOA req’d	NOA req’d	NOA req’d	FBC §1609 / TAS

Download

Copy information

Product Range

Column Styles

Decorative Moldings 1

Decorative Moldings 2

Decorative Moldings 3

Decorative Moldings 4

Decorative Moldings 5

Decorative Moldings 6

Decorative Moldings 7

Exterior Wall Niches 1

Exterior Wall Niches 2

Exterior Wall Niches 3

Finishes

Size Guide

Height (H), in	Depth (D), in	Length (L), in
2 ¾	¾	96
3	1
3 ¼	1 ¼
3 ½	1 ½
4	1 ¾
4 ½	2
5	2 ¼
5 ½	2 ½
6	2 ¾
6 ¾	3 ¼
7 ½	3 ½
8 ¼	4

Finishes

Textures & Colors

We offer 3 finish types and 9 standard colors. For custom color, we have mixes that allow us to make columns in almost any color.

Sandblast

Fine, uniform aggregate. Replicates the clean, etched look of sandblasted masonry. Fully paintable.

Freestyle

Hand-troweled, organic movement. Perfect for Old World, Mediterranean, or custom rustic facades. Fully paintable.

Quarzputz

Classic rilled stucco texture. Engineered to seamlessly match standard EIFS exterior systems. Fully paintable.

Sandpebble

Medium-to-heavy aggregate. Delivers a robust, traditional stucco profile that hides surface imperfections. Fully paintable.

Sandpebble fine

Tight, subtle aggregate. A versatile, low-profile texture that balances masonry realism with a refined finish. Fully paintable.

Mojave

Deep, rugged relief. Creates strong shadow lines for a bold, heavy-masonry aesthetic. Fully paintable.

Finesse

Sophisticated, micro-stipple texture. Provides a premium, understated finish for high-end residential or commercial designs. Fully paintable.

Coral

Deep, heavily pitted texture. Recreates the dramatic, organic look of natural volcanic rock or weathered marine coral reefs. Fully paintable.

Coral Light

Subtle, moderately pitted texture. Offers a softer, more refined version of the classic coral finish with a balanced, natural depth. Fully paintable.

All textures and colors are fully customizable for each individual project, ensuring complete flexibility in design and appearance.

Each our decorative architectural foam product is unique. We don’t “print” identical beams — we craft them as individual architectural pieces.

Discuss my project

Our material vs Competitors

Property

Our Material (EPS)

Wood

Concrete

Polyurethane

Fiberglass

Weight

Very lightweight

Medium

Very heavy

Light

Thermal Insulation

Excellent

Moderate

Poor

Excellent

Good

Moisture Resistance

High (does not absorb water)

Low (absorbs moisture)

Medium

High

Medium

Durability

Long-lasting, stable

Can rot or warp

Very durable

Durable

Fragile over time

Fire Behavior

Melts under high heat

Burns

Fire-resistant

Flammable (treated variants available)

Non-combustible

Ease of Installation

Easy, fast, low labor cost

Moderate

Difficult, labor-intensive

Moderate

Requires protection gear

Customization

Highly customizable shapes & sizes

Limited

Very limited

Moderate

Limited

Cost

Affordable

Medium to high

High

Medium

Why choose us

Value / Service

Our company

Competitors

Free Design Support

Included in every project

Usually not available

Product Customization

Fully customized solutions

Limited options

Engineering Consultation

Direct access to engineers

Rare or paid

Unique Prototype Development

Yes, tailored prototypes

Not offered

Personal Project Manager

Dedicated manager for each client

Not standard

Speed of Production

Fast turnaround

Slower processes

Client Support

Ongoing support at all stages

Limited after-sales support

Flexibility

Tailored to any client requirements

Standard solutions only

Let’s bring your vision to life

Request a free quote Schedule appointment

How to order your architectural columns

From your CAD file to a grand entrance—our process is transparent, fast, and engineered for your peace of mind.

It all begins with a deep dive into your project. We work as your technical partner to transform creative intent into a solid, actionable plan.

Analyze your inputs: We review your architectural plans, CAD files, sketches, and inspirational images to understand your design from every angle.
Define the scope: In a collaborative consultation, we discuss the project’s aesthetic goals, site conditions, and technical requirements to ensure a perfect fit.
Establish a technical blueprint: We finalize all specifications, from dimensions to finish textures, creating a clear roadmap for fabrication that aligns perfectly with your vision.

We bridge the gap between concept and cost, providing you with the clarity and confidence to move forward.

Receive a detailed 3D visualization: We create and send you a precise 3D model, allowing you to see exactly how your custom architectural elements will look before production begins.
Get a transparent, itemized proposal: You receive a clear, comprehensive quote with no hidden fees. We believe in total transparency, so you know exactly what you’re investing in.
Maintain complete control for final approval: We don’t proceed until you are 100% satisfied. You have the final say on the design and budget before we move to the next stage.

This is where your approved design becomes a physical reality, crafted with an obsessive focus on quality in our 45,000 sq. ft. workshop.

Execute with robotic accuracy: Our state-of-the-art CNC hot-wire machines carve your architectural elements with flawless precision, matching your approved 3D models to the exact specification.
Armor for a century of performance: Our skilled artisans apply our signature Polyurea hard coat, creating a seamless, impact-resistant, and weatherproof shell designed for decades of durability.
Verify through rigorous quality control: Every single piece undergoes a multi-point inspection to ensure it meets our exact standards for shape, finish, and structural integrity.

Our commitment extends all the way to your job site, ensuring a smooth and successful installation.

Protect with secure, custom crating: We build specialized shipping crates for every project, guaranteeing your elements arrive in pristine, ready-to-install condition.
Streamline your installation: Your pieces are delivered pre-assembled and lightweight, designed to slash on-site labor time and eliminate the need for heavy machinery.
Support your crew to the finish line: We provide detailed installation guides and offer live Zoom support to answer your team’s questions, guaranteeing a perfect final fit.

Step 1: Consultation & Vision

It all begins with a deep dive into your project. We work as your technical partner to translate creative intent into a solid, actionable plan.

Analyze your inputs: We review your architectural plans, CAD files, sketches, and inspirational images to understand your design from every angle.
Define the scope: In a collaborative consultation, we discuss the project’s aesthetic goals, site conditions, and technical requirements to ensure a perfect fit.
Establish a technical blueprint: We finalize all specifications, from dimensions to finish textures, creating a clear roadmap for fabrication that aligns perfectly with your vision.

Step 2: Design & Quote

We bridge the gap between concept and cost, providing you with the clarity and confidence to move forward.

Receive a detailed 3d visualization: We create and send you a precise 3D model, allowing you to see exactly how your custom architectural elements will look before production begins.
Get a transparent, itemized proposal: You receive a clear, comprehensive quote with no hidden fees. We believe in total transparency, so you know exactly what you’re investing in.
Maintain complete control for final approval: We don’t proceed until you are 100% satisfied. You have the final say on the design and budget before we move to the next stage.

Step 3: Precision Fabrication

This is where your approved design becomes a physical reality, crafted with an obsessive focus on quality in our 45,000 sq. ft. workshop.

Execute with robotic accuracy: Our state-of-the-art CNC hot-wire machines carve your architectural elements with flawless precision, matching your approved 3D models to the exact specification.
Armor for a century of performance: Our skilled artisans apply our signature Polyurea hard coat, creating a seamless, impact-resistant, and weatherproof shell designed for decades of durability.
Verify through rigorous quality control: Every single piece undergoes a multi-point inspection to ensure it meets our exact standards for shape, finish, and structural integrity.

Step 4: Delivery & On-Site Success

Our commitment extends all the way to your job site, ensuring a smooth and successful installation.

Protect with secure, custom crating: We build custom shipping crates for your elements, ensuring they arrive on-site in perfect, ready-to-install condition.
Streamline your installation: Your pieces are delivered pre-assembled, designed to slash on-site labor time and eliminate the need for heavy machinery.
Support your crew to the finish line: We provide detailed installation guides and offer live Zoom support to answer your team’s questions, guaranteeing a perfect final fit.

Our project gallery

Client testimonials

From your first idea to the final installation — our process is clear, fast, and designed to make every detail simple.

Let’s bring your vision to life

Request a free quote Schedule appointment

FAQ

More architectural shapes

We provide architects, builders, and homeowners with turnkey decorative elements that transform any project — fast, easy, and cost-effective.

Architectural columns

Door surrounds

Faux stone column wraps and lamp posts

Stucco mailboxes and lamp posts kits

Exterior louvers & shutters

Exterior wall niches

Decorative moldings

Decorative trims

Sills and bands

Crown moldings

View catalog

Blog posts

Decorative Architectural Shapes Decorative Modern Dormer Windows

Decorative Architectural Shapes decorative dormers are designed to bring elegance, depth, and character to any building exterior. A dormer is more than a decorative detail; it is an architectural statement that can transform a plain roofline or window area into a custom, high-end feature.

Decorative Architectural Shapes Exterior Corbels and Brackets: Lightweight Detail, Strong Architectural Presence

Exterior corbels and brackets are small architectural elements with a large visual effect. They add depth, shadow, proportion, and character to the outside of a building.

Decorative Architectural Shapes Architectural Columns, Capitals & Bases

Columns have represented strength, elegance, balance, and prestige for centuries. From classical architecture to today’s luxury homes, hotels, churches, resorts, and commercial buildings, columns continue to play a major role in creating beautiful architectural spaces.

See more posts

Exclusive catalog of custom architectural decor on white abstract background blocks.

Your essential design
& specification catalog

Get the definitive guide to our custom decorative architectural foam shapes. This free catalog is packed with hundreds of design profiles, detailed technical specifications, and real-world project applications.

Download Free Catalog

Let's build something great together

Have a project in mind?

Our dedicated specialists are ready to collaborate with you, turning your concept into a detailed plan with a transparent budget. Let’s bring your vision to life!

Architectural columns

Engineered for every vision

From structural post to architectural statement

System Architecture

EPS Core + Polyurea Shell vs. Conventional Materials

Integrated Multi-Layer System

Core Philosophy

Functional Role of Each Layer

Why Conventional Materials Fall Short

Performance Advantages of Our Company

Final Result

Material Composition

Engineering Advantages of EPS/Polyurea Over Wood, PVC, and Fiberglass

Engineered Composite System

Core Structure

Why It Matters

Protective Outer Shell: Two-Component Polyurea Coating

Technical Comparison with Competing Materials

Failure Modes Eliminated by Royal Foam

Long-Term Client Value (Delivered Performance)

Durability

Systemic Service Performance of EPS/Polyurea in Demanding Climates

Competing Materials Fail by Documented Mechanisms

Compliance

EPS/Polyurea as a Fully Documentable System

Technical Standards & Submittals

Cost Efficiency

Total Cost of Ownership Advantage of EPS/Polyurea Over Competing Systems

TOTAL COST OF OWNERSHIP AS THE TRUE ECONOMIC MEASURE

Installation and Freight Economics

Final Economic Result

Speed of Installation

EPS/Polyurea as a Construction Schedule Compression Tool

IN COMMERCIAL CONSTRUCTION, SCHEDULE COMPRESSION IS A DIRECT REVENUE STRATEGY

OUR COMPANY PREFABRICATED PRODUCTS ARRIVE ON SITE FULLY PROCESSED: EPS-SHAPED, POLYUREA-COATED, PRIMED, AND FINISH-COATED

CNC FABRICATION PROVIDES AN ADDITIONAL SCHEDULE ADVANTAGE AT THE DESIGN STAGE

Customization

EPS/Polyurea Delivers Design Freedom Unavailable in Competing Systems

CUSTOMIZATION IS BUILT INTO THE PROCESS

WIDE GEOMETRIC AND SURFACE CAPABILITIES PRECISION REPRODUCTION

Renovation and Wrap Applications

Direct Competitive Comparison

Final Client Benefit

Engineering

EPS/Polyurea as a Fully Designable Technical System

Documentability as the Core Engineering Criterion

PARAMETER-BASED ENGINEERING DESIGN

POLYUREA SPECIFICATION

COMPLETE DOCUMENTATION PACKAGE

CLIENT AND APPROVAL BENEFITS

Aesthetics

EPS/Polyurea as a Fully Designable Technical System

Aesthetics as an Economic Variable

PRECISION ARCHITECTURAL REPRODUCTION

Proportion and Design Consistency

Surface and Color Flexibility

Final Market Benefit

Technical specification

General Information

Structural Performance

Wind Load Resistance

Thermal Performance

Thermal Performance

Acoustic Performance

Dimensional Stability

Impact & Abrasion Resistance

UV Stability

Weight Efficiency

Product Data

Shop Drawings

Engineering Calculations

Astm E84 Test Reports

Samples

Warranty Documentation

8 Delivery, Storage & Handling

Products

Architectural Columns

Decorative Beams, Brackets & Corbels

Facade Panels & Cladding Systems

Cornices, Moldings, Trim & Surrounds

EPS Core + Polyurea Shell
vs. Conventional Materials