Wall & Envelope Systems

Foam Insulation for Wall & Envelope Systems

Foam Sales Group fabricates precision-cut foam insulation for wall and building envelope applications, supporting energy-efficient assemblies with project-specific accuracy and nationwide delivery.
Under-construction multi-story building with insulation panels and scaffolding, blue sky background.
High-performance foam board insulation for exterior and interior walls.
Wall Applications

How Foam Is Used in Wall & Envelope Systems

Foam insulation is a key component in wall and building envelope systems, providing continuous insulation that improves thermal performance and helps control air and moisture movement. Rigid foam boards are commonly used within cavity walls, over exterior sheathing, and as part of continuous insulation assemblies to enhance energy efficiency and long-term building performance.

Provides continuous insulation to reduce thermal bridging
Improves energy efficiency across the building envelope
Supports air and moisture control within wall assemblies
Enhances durability of exterior wall systems
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Products

Our Wall & Envelope Systems Products

Explore our selection of foam insulation products we fabricate and distribute with materials cut to project specifications and delivered nationwide.
High-quality roofing sheathing with dual layer design for durability and weather resistance.

DuPont™ Thermax™ Polyiso Insulation

DuPont™ Thermax™ Insulation is a high-performance polyisocyanurate (polyiso) foam board designed for continuous insulation in wall and envelope systems. Manufactured by DuPont, Thermax™ features glass-fiber-reinforced facers that deliver long-term thermal performance, dimensional stability, and enhanced fire characteristics. It is commonly used in commercial wall assemblies where durability, moisture resistance, and energy efficiency are critical.
Polyiso continuous insulation for wall and envelope systems
High R-value per inch for improved energy performance
Moisture-resistant and dimensionally stable construction
Suitable for exterior wall assemblies and select interior applications
Information Sheet(s):
Thermax
Insulation foam boards used for building energy efficiency and temperature control.

Thermasheath® & ECOMAXci® FR

RMAX Thermasheath® and ECOMAXci® FR are high-performance polyisocyanurate (polyiso) insulation boards engineered for continuous insulation in wall and envelope systems. Manufactured by RMAX, these products are designed to deliver consistent thermal performance, moisture resistance, and durability across a wide range of commercial applications. With reinforced facers and fire-rated options available, RMAX polyiso solutions support energy-efficient, code-conscious wall assemblies.
Polyiso continuous insulation for wall and envelope systems
High R-value per inch for improved thermal performance
Reinforced facers for durability and dimensional stability
Fire-rated options available to support code requirements
Information Sheet(s):
Thermasheat
Ecomax
High-quality EnergyShield Pro continuous wall insulation board for energy-efficient buildings.

Atlas EnergyShield® Pro & ACFoam® II

Atlas EnergyShield® Pro and ACFoam® II are rigid polyisocyanurate (polyiso) insulation boards designed for continuous insulation in wall and building envelope systems. Manufactured by Atlas Roofing and ACH Foam Technologies, these products deliver reliable thermal performance, moisture resistance, and durability for commercial construction applications. They are commonly specified where consistent insulation and long-term energy efficiency are required across exterior wall assemblies.
Polyiso continuous insulation for wall and envelope systems
High R-value per inch to support energy-efficient assemblies
Durable, moisture-resistant construction for long-term performance
Suitable for a wide range of commercial wall applications
Information Sheet(s):
Energy Shield Pro
ACFoam
Insulation panel with John-Matt logo, ideal for structural and thermal insulation applications.

Johns Manville® AP™ Foil-Faced & CI Max®

Johns Manville® AP™ Foil-Faced and CI Max® polyisocyanurate (polyiso) insulation boards are engineered for continuous insulation in wall and building envelope systems. Manufactured by Johns Manville, these products deliver reliable thermal performance, moisture resistance, and durability for commercial applications. With foil facers and high R-value per inch, they support energy-efficient wall assemblies and code-driven designs.
Polyiso continuous insulation for wall and envelope systems
High R-value per inch to improve energy performance
Foil-faced options for durability and moisture control
Designed for commercial exterior wall assemblies
Information Sheet(s):
JM AP Foil
JM CI Max
High-quality Styrofoam square edge insulation board for building and construction projects.

DuPont™ Styrofoam™ Square Edge, Highload 40 / 60 / 100

DuPont™ Styrofoam™ insulation products provide durable, moisture-resistant thermal performance for demanding commercial applications across wall, roofing, and below-grade systems. Manufactured by DuPont, these closed-cell extruded polystyrene boards are available in Square Edge and Highload configurations, including 40, 60, and 100 psi compressive strengths. Designed to retain R-value over time, they are well suited for projects requiring long-term performance under load and exposure to moisture.
Closed-cell insulation for wall, roofing, and below-grade systems
Available in Square Edge and Highload 40, 60, and 100 psi options
High moisture resistance with long-term thermal performance
Engineered for applications requiring durability and load-bearing strength
Information Sheet(s):
SE25
HL40
HL60
HL100
Close-up of King Sheet GreenGuard Latex Mattress Topper with detailed label and eco-friendly packaging.

Kingspan GreenGuard® GG XPS Insulation Boards

Kingspan GreenGuard® GG XPS Insulation Boards are high-performance, closed-cell extruded polystyrene solutions designed for durable, long-term thermal performance in demanding applications. Manufactured by Kingspan, these boards are available in multiple compressive strengths (25, 40, and 60 psi) to support a wide range of below-slab, cavity wall, and foundation systems while maintaining excellent moisture resistance and insulating value over time.
Closed-cell XPS insulation available in 25, 40, and 60 psi compressive strengths
Delivers R-5 per inch with long-term thermal performance
Highly moisture resistant for below-grade and foundation applications
Available in multiple edge profiles and pre-cut formats for installation flexibility
Information Sheet(s):
GG25
GG40
GG60
High-performance Owens Corning foam insulation for superior energy efficiency.

Owens Corning FOAMULAR® XPS Insulation (F-250, F-400, F-600 & F-1000)

Owens Corning FOAMULAR® XPS Insulation products are rigid, closed-cell extruded polystyrene boards engineered for strength, durability, and long-term thermal performance. Manufactured by Owens Corning, FOAMULAR® insulation is available in multiple compressive strengths—F-250, F-400, F-600, and F-1000—making it suitable for applications ranging from commercial roofing to below-grade and high-load structural environments.
Closed-cell XPS insulation available in 25, 40, 60, and 1000 psi compressive strengths
Provides consistent thermal performance with R-5 per inch
Moisture-resistant and designed for long-term durability
Ideal for roofing, foundation, slab, and heavy-load applications
Information Sheet(s):
F250
F400
F600
F1000
Efficient ThermalStar insulation panels for wall insulation applications.

Atlas ThermalStar® XPS Insulation (E, E+, G+, X, X+)

Atlas ThermalStar® XPS Insulation boards deliver reliable thermal performance and moisture resistance for commercial roofing, wall, and below-grade applications. Manufactured by Atlas Molded Products, ThermalStar® E, E+, G+, X, and X+ products are engineered as closed-cell extruded polystyrene solutions that retain insulating performance over time, even in demanding environments where durability and consistency are critical.
Closed-cell XPS insulation available in ThermalStar® E, E+, G+, X, and X+ options
Provides consistent R-value performance for commercial applications
High moisture resistance for long-term durability
Suitable for roofing, wall systems, and below-grade insulation assemblies
Information Sheet(s):
ThermalStar® E
ThermalStar® E+
ThermalStar® G+
ThermalStar® X
ThermalStar® X+
House exterior showing new insulation and window openings during construction.

Insulfoam® EPS Insulation Boards (Exterior Grade & Tongue-and-Groove)

Insulfoam® EPS insulation boards provide versatile, cost-effective thermal solutions for below-grade, wall, and specialty construction applications. Manufactured by Insulfoam, these expanded polystyrene (EPS) products are designed for durability, dimensional stability, and long-term performance, with options including exterior-grade boards and tongue-and-groove profiles for enhanced fit and continuity.
EPS insulation designed for exterior, below-grade, and wall applications
Available in standard exterior-grade and tongue-and-groove edge profiles
Lightweight, durable, and easy to handle on site
Supports consistent thermal performance across a wide range of applications
Information Sheet(s):
Insulfoam Exterior Grade
Insulfoam Tongue & Groove
Styrofoam brand highload 40 product logo image2 Large

DuPont™ Highload XPS Insulation for Wall & Envelope Systems

DuPont™ Highload XPS Insulation is a high-performance, closed-cell foam solution designed for demanding wall and envelope systems. This insulation offers superior compressive strength, moisture resistance, and long-term thermal performance, making it ideal for exterior walls, foundation walls, and other critical applications. With a focus on durability, it helps maintain building energy efficiency while ensuring structural integrity under load.
High compressive strength for structural support in wall systems
Moisture-resistant to prevent water infiltration and protect building components
Long-term thermal performance with R-value retention over time
Suitable for use in both commercial and heavy-duty exterior wall applications
Information Sheet(s):
HL40
HL60
Fabricated to Spec

Our Fabrication Capabilities

Foam Sales Group fabricates wall and envelope insulation products to exact project specifications, supporting continuous insulation systems with precision and consistency. Our fabrication process ensures materials integrate seamlessly into wall assemblies, helping OEMs and distributors deliver reliable, high-performing building envelope solutions.

Precision cutting for cavity wall and continuous insulation systems
Custom sizing and thicknesses for exterior wall assemblies
Consistent tolerances to support system performance
Coordinated fabrication and nationwide distribution
A construction worker in a yellow safety vest and red helmet carrying insulation board labeled Styrofoam through a wooded environment.
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Years of Innovation in Foam Fabrication
Who We Serve

Industries We Support

Foam Sales Group works across multiple industries, delivering precision-fabricated foam solutions tailored to the unique demands of each application.
Styrofoam plazamate xr product logo image4

Construction

We supply precision-cut insulation for commercial roofing, wall, and below-grade systems, supporting OEMs and distributors with materials their project teams rely on in the field.
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OEM Manufacturing

FSG partners with manufacturers to fabricate custom foam components that integrate seamlessly into OEM products, assemblies, and production workflows.
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Theatrical Sets & Props

From sculpted sets to detailed props, we provide specialty foam fabrication for the entertainment industry, combining precision shaping with responsive, service-driven support.
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Common Questions

Wall & Envelope Systems Foam FAQs

Here are answers to some of the most frequently asked questions about our foam insulation solutions.

Foam insulation provides continuous insulation within wall and envelope assemblies, helping reduce thermal bridging, improve energy efficiency, and support long-term building performance.

Wall and envelope systems commonly use XPS, EPS, and Polyiso insulation, depending on performance requirements, moisture exposure, and design specifications.

Yes. Foam Sales Group fabricates wall and envelope insulation to exact project specifications, including custom sizes, thicknesses, and profiles to ensure proper fit and performance.

We supply wall and envelope insulation through OEMs and distributors nationwide. Materials are delivered as part of integrated building systems rather than sold directly to contractors.

Foam insulation helps control heat transfer, air movement, and moisture within the building envelope, contributing to improved energy efficiency, occupant comfort, and durability.

Man applying Kingspan GreenGuard LG insulation panels to exterior wall.
Ready to Get Started?

Let’s Build Your Next Project Together

Connect with Foam Sales Group to discuss your fabrication needs, request a quote, or explore partnership opportunities — our team is ready to deliver precision, reliability, and nationwide support.