Skip to main content

High-Performance EXTRUDED POLYSTYRENE (XPS) Insulation

Durable. Versatile. Resistant. Owens Corning® FOAMULAR® is a high-performing insulation, trusted by architects, engineers, builders, and contractors to deliver superior insulating power and moisture resistance. Foamular® XPS insulation is well suited to meet the needs of a wide variety of building applications.  

The proprietary HYDROVAC manufacturing process ensures a consistent closed-cell structure that is free of voids – keeping moisture out while delivering an R-Value of 5 per inch of thickness. Unlike other rigid foam insulations, testing proves FOAMULAR® XPS insulation maintains its R-Value even when exposed to standing water, wet soil, and more. 

Available in compressive strengths from 15 to 100 psi and easy to handle on a variety of job sites across all climate zones, FOAMULAR® stands up to your most demanding applications for both above and below-grade grade residential and commercial insulation applications. 

R-10 Foamular Pink Insulation Board

FOAMULAR® NGX® HIGH-PERFORMANCE XPS INSULATION

Owens Corning® FOAMULAR® NGX™ insulation offers all the performance and ease of use you expect from Owens Corning® FOAMULAR® insulation boards with industry-leading sustainability. Learn how FOAMULAR® NGX™ meets the new environmental regulations for Canada and a growing list of US states. 

INTRODUCING THE OWENS CORNING

BIM Library

FOR FOAMULAR® XPS INSULATION!

We are thrilled to unveil our latest innovation for architects, engineers, and construction specifiers—the comprehensive BIM Library exclusively designed for our esteemed FOAMULAR® line of XPS insulation products. With this cutting-edge resource, we're revolutionizing the way you access and integrate insulation solutions into your projects, bringing you greater unrivaled efficiency, performance, and design versatility.

Man working at a computer, browsing the Owens Corning BIM Library

BENEFITS OF XPS Insulation

WHY FOAMULAR®?

Owens Corning® FOAMULAR® XPS foam boards offers several performance advantages over other insulation options. The complete portfolio of FOAMULAR® insulation products, available in a variety of thicknesses and compressive strengths, help protect roofs, foundations, and walls—offering solutions for nearly any enclosure insulation need. Here are five reasons FOAMULAR® XPS is the right choice for your next project: 

Exceptional Moisture Resistance

Exceptional Moisture Resistance

Virtually impervious to moisture. FOAMULAR® XPS insulation boards have up to 13X more resistance to water than EPS insulation. 

Durability

Durability

Manufactured to comply with ASTM C5781, FOAMULAR® insulation holds its strength, accepting design loads with little deformation. For example, FOAMULAR® insulation is the ideal choice in Protected Roof Membrane Assemblies (PRMA) for vegetative roofs, withstanding the wet soils and loads, and aiding in run-off management. 

Easy Installation

Easy Installation

Lightweight and easy to handle, score, cut, and install. FOAMULAR® insulation products are compatible with common exterior claddings and finishes, as well as other manufacturers’ products and hanging systems. 

High, Stable R-Values

High, Stable R-Values

Retains a minimum of 90% of R-Value over 20 years, even when exposed to moisture or in cases of facer delamination. 

Sustainability

Sustainability

Helps you achieve valuable LEED®² credits and is certified by the GREENGUARD Environmental Institute under the GREENGUARD Standard for Low Emitting Products. 

*Based on a weighted 3-plant average
¹ASTM C 578-06. Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation: ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA.
²LEED is a registered trademark of U.S. Green Building Council.

NEVER MISS AN UPDATE

Don't miss out on the latest product information, industry updates, and webinar announcements.


applications for XPS insulation

XPS FOR VEGETATIVE ROOF ASSEMBLIES

Strength that lets designs flourish

Vegetative roof assemblies (VRAs) are both beautiful and functional. Whether designed to meet building codes, provide a refuge for wildlife, or as spaces for outdoor leisure, VRAs require careful design and materials that can resist severe exposure and extreme pressures. See why FOAMULAR® XPS insulation is the gold standard of insulation for VRAs using PRMA (Protected Roof Membrane Assembly) design. 

Coast Guard

Water resistance

Water resistance

VRAs can store stormwater for later use or capture and slowly release it to reduce runoff, contributing to sustainable design and helping to meet local regulations. FOAMULAR® XPS foam boards are moisture resistant and helps protect the membrane below from thermal expansion, contraction, and exposure to damage. 

Compressive strength

Compressive strength

With a variety of compressive strengths available up to 100 PSI, FOAMULAR® XPS insulation stands up to the weight of growing media, pavers, water, plants, trees, and even car and truck traffic on plaza decks. 

Energy efficiency

Energy efficiency

FOAMULAR® XPS has high thermal performance — R-5 per inch — adding to your building’s insulation performance and energy savings. 

Sustainability

Sustainability

Made from recycled content and contributing to building certifications, FOAMULAR® XPS insulation complements the sustainable profile of VRAs. FOAMULAR® NGX™ XPS is an even more sustainable option, made with a blowing agent formulation that delivers a 90% reduction in global warming potential.1

XPS FOR CONCRETE CONSTRUCTION

Making construction even more efficient and durable

Insulated concrete construction, such as precast, site-cast, and tilt-up, delivers an affordable, efficient, and sustainable option for commercial building design. FOAMULAR® XPS insulation complements that efficiency, for designs that are as functional as they are innovative. 

KC Art Institute

Efficient insulating

Efficient insulating

FOAMULAR® XPS panels can be sandwiched between the interior concrete wythe and exterior fascia wythe, eliminating the need for furring. Walls are erected with insulation already in place

No thermal bridges

No thermal bridges

When used between wythes, FOAMULAR® XPS functions as continuous insulation to meet energy code standards and reduce energy loss through the exterior wall with less site construction time.  

Strength for panel lift and placement

Strength for panel lift and placement

Lifting and setting pre-cast panels is a tricky business. FOAMULAR® XPS delivers high-compressive strength without adding significant weight to panels.  

Fire safety benefits

Fire safety benefits

Compliant with ASTM E119 Fire Resistance Rated Wall Assemblies, FOAMULAR® XPS is a great fit with the inherently fire-resistant profile of pre-cast concrete. 

XPS FOR GEOTECHNICAL APPLICATIONS

Supporting the foundation of a great design

For engineered applications requiring additional load-resistance capabilities, FOAMULAR® delivers high strength and durability. Under roadways, runways, and in building foundations, FOAMULAR® provides reliable R-Values and stability in challenging environments and under high structural demands. 

Scenic mountain road surrounded by a forest of green trees

Water resistance

Water resistance

FOAMULAR® resists taking on moisture in geotechnical applications, maintaining R-Values even after decades of use. 

Material efficiency

Material efficiency

FOAMULAR® provides higher thermal performance and moisture resistance than EPS, allowing less product consumption and more efficient installation. 

Durability

Durability

FOAMULAR® is found under some of the most demanding geotechnical designs —runways, roadways, rail beds, and more — stands up to extreme conditions, providing a limited lifetime warranty. 

Compressive strength

Compressive strength

Geotechnical applications are designed to take on high loads and stress. FOAMULAR® stands up to the challenge with available strengths up to 100 psi and superior dimensional stability. 

1 Impact measured over 100-year time-horizon, as compared to FOAMULAR® blowing agent formulation.

FEATURED PROJECTS

HIGH-PERFORMANCE PROTECTION OPTIONS FOR INNOVATIVE DESIGNS

With its high compressive strength and resistance to moisture, architects and specifiers choose FOAMULAR® insulation products for enclosure needs from roof to foundation. Learn how FOAMULAR® insulation solutions are working to solve challenges in real-world designs. 

Campus view of three buildings surrounded by pathways and picnic tables

COMPREHENSIVE PORTFOLIO, COMPLETE PROTECTION

News

FOAMULAR® insulation is available in a wide range of thicknesses, sizes, and strengths to meet nearly any project application need. From green roofs that require special strength and moisture resistance to keeping foundations protected from the cycles of the seasons, you’ll find a FOAMULAR® insulation product designed for the coverage and performance your projects demand. 

Dickies Arena at night

Building Design + ConstructionNot Your Ordinary Rodeo or Plaza Deck

Not your ordinary rodeo, or plaza deck. Dickies Arena in Fort Worth manages storm water, delivers compressive strength, and provides functional outdoor space while providing one-of-a-kind views of rodeo events.

Read More
Dickies Arena during the day

Building EnclosureRooftops, Resiliency and Performance in the Extreme

Performance in the extreme starts at the top of the enclosure. From standing up to historic weather events to complying with more stringent rainwater regulations to protecting mission critical processes, today’s roofs must deliver extraordinary performance.

Read More
Listening Lounge Podcast Series

Building EnclosureTalking Versatile VRAs for Smart Buildings

As ordinances make vegetative roof assemblies (VRA) more attractive to designers, they’re also changing in size, form, and function. This episode looks at how 3 high-profile VRAs helped architects bring their sustainability, stormwater management and outdoor living visions to life.

Listen Now
Vegetative roof assembly

Construction SpecifierXPS + Building Science = Three High-Performing Roofs

Codes and creative use of space converge on the rooftops of three high-profile buildings. Construction Specifier explores how FOAMULAR XPS is bringing smart performance to three innovative vegetative roof assemblies (VRAs).

Read More
Dickies Arena

Roofing MagazineDickies Arena Plaza Deck Extends the Experience

Owens Corning® FOAMULAR® insulation products and Building Science combined to solve challenges in the outdoor extension of this entertainment and sports venue.

Read More
Douglas A . Munro U.S. Coast Guard building

Roofing MagazineU.S. Coast Guard goes Green, earns LEED Gold

One of the nation’s largest vegetative roofs, the Douglas A . Munro U.S. Coast Guard building is nestled into a hillside terrain, where a series of terraces attract local wildlife, support biodiversity and help navigate stormwater runoff.

Read More

COMMERCIAL XPS PRODUCTS

COMPREHENSIVE PORTFOLIO, COMPLETE PROTECTION

FOAMULAR® insulation is available in a wide range of thicknesses, sizes and strengths to meet nearly any project application need. From green roofs that require special strength and moisture resistance to keeping foundations protected from the cycles of the seasons, you’ll find a FOAMULAR® product designed for the coverage and performance your projects demand.

pink foam board insulation side view

INDUSTRIAL XPS PRODUCTS

FOAMULAR® XPS PIPE INSULATION FABRICATION BILLETS

FOAMULAR® XPS Fabrication Billets provide raw stock to commercial pipe fabricators from which individual pipe insulation parts can be cut. 

Used as low-temperature pipe and equipment insulation, FOAMULAR® XPS Pipe Insulation is ideal for various cold service applications - including ammonia/refrigeration, and food and beverage service processing. 

Industrial XPS pipe insulation

RESIDENTIAL XPS PRODUCTS

COMFORT MEETS PERFORMANCE

Your comfort starts on the outside. Owens Corning® FOAMULAR® insulation boards resist moisture, keeping your basement and crawlspace dry. With its R-Value of 5 per inch of thickness, FOAMULAR® insulation boards help you chase away the chill for a home that is cozy and comfortable. 

Man wearning plaid shirt installing foamular 150 foam board insulation

Find Our Products