Owens Corning FOAMULAR 150 XPS Insulation Board
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| Thickness | Sq Ft Per Board | R-Value |
|---|---|---|
| 0.5" | 32 Sq Ft | R3 |
| 1" | 32 Sq Ft | R5 |
| 1.5" | 32 Sq Ft | R7.5 |
| 2" | 32 Sq Ft | R10 |
| 2.5" | 32 Sq Ft | R12.5 |
| 3" | 32 Sq Ft | R15 |
The Owens Corning FOAMULAR 150 XPS 4ft x 8ft Insulation Board is a closed-cell, moisture-resistant rigid foam board built for a wide range of residential and commercial uses. It’s tough, trustworthy, and a little more boringly efficient than your average insulation—perfect for when you want to do the job right without drama. Please note we cannot ship to the following states: California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington. Key Features & Design
Board size: 4 ft x 8 ft (32 Sq Ft per board)
Material: FOAMULAR® 150 Extruded Polystyrene XPS Rigid Foam Insulation
R-Value by thickness (per 32 Sq Ft board): 0.5" = R3, 1" = R5, 1.5" = R7.5, 2" = R10, 2.5" = R12.5, 3" = R15
Performance: Excellent long-term stable insulating performance at R-5 per inch
Moisture resistance: Exceptional moisture resistance, long-term durability
Handling: Lightweight, durable rigid foam panels are easy to handle and install
Workability: Easy to saw, cut or score with a scored square edge
Applications & Design Details
High-performance FOAMULAR®150 Extruded Polystyrene XPS Rigid Foam Insulation for wall furring, perimeter/foundation, cavity wall, pre-cast concrete, crawl spaces, sheathing, and other applications Retards the transmission of water vapor and moisture in masonry walls Provides continuous insulation over steel stud framing, in insulated concrete sandwich panel walls, or in masonry unit cavity walls, or when used with non-penetrating, surface mounted furring systems over masonry or concrete walls Insulates and retains its properties in below-grade perimeter and foundation applications, to complement the insulating sheathing envelope around the building framing Provides a weather-resistant barrier (when joints are sealed) to enhance the building resistance to air and moisture penetration XPS Rigid Foam Insulation is great for below-grade applications. XPS is resistant to degradation from the components of common soils and will retain its insulating performance characteristics even after prolonged exposure to moisture
Technical & Safety Details
Combustibility: This product is combustible. A protective barrier or thermal barrier is required as specified in the appropriate building code.
Material classification: FOAMULAR® 150 Extruded Polystyrene XPS Rigid Foam Insulation is a non-structural material.
Exposure: FOAMULAR® XPS Insulation can be left exposed for up to 60 days. During that time some degradation or “dusting” of the polystyrene surface may begin. Once covered, the deterioration stops.
Service temperature: FOAMULAR® 150 Extruded Polystyrene XPS Rigid Foam Insulation has a maximum service temperature of 165°F.
Horizontal applications: For horizontal applications, always turn the black print side down.
Ventilation & coverings: Do not cover FOAMULAR® XPS Insulation either stored (factory wrapped or unwrapped), or partially installed, with dark-colored (non-white), or clear (non-opaque) coverings and leave it exposed to the sun.
Ideal for installers who want dependable insulation that’s easy to handle and proven over time. Choose FOAMULAR® 150 XPS for reliable performance across walls, foundations, and below-grade projects—without the drama.
Thickness
Sq Ft Per Board
R-Value
0.5"
32 Sq Ft
R3
