1" 4x8 DOW GREY RIGID FOAM BOARD
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Dow Grey 1" Rigid Foam Insulation Board (4' x 8')
Upgrade your building envelope with the professional’s choice for thermal performance. This 1-inch thick Dow Grey Rigid Foam Board provides a high-moisture resistance and superior compressive strength, making it the ideal solution for both residential and commercial applications.
Designed to create a continuous insulation barrier, these boards effectively eliminate thermal bridging, keeping interiors warmer in the winter and cooler in the summer.
Key Features
Superior Thermal Efficiency: Provides a consistent R-value to reduce energy consumption and lower utility bills.
Moisture Management: The closed-cell structure resists water absorption, preventing mold growth and maintaining insulating properties in damp environments.
High Compressive Strength: Durable enough for use in under-slab applications, crawl spaces, and exterior sheathing.
Easy Installation: Lightweight sheets are easy to score, cut, and snap for a precision fit around windows, doors, and corners.
Versatile Application: Compatible with wood, metal, and masonry wall systems.
Technical Specifications
| Feature | Specification |
|---|---|
| Dimensions | 1" x 4' x 8' |
| Material | Extruded Polystyrene (XPS) |
| Edge Profile | Square Edge |
| Color | Grey |
| R-Value | R-5.0 (Standard for 1" XPS) |
| Coverage | 32 sq. ft. per sheet |
Common Applications
Exterior Walls: Use behind siding or brick for a continuous air and thermal seal.
Basements & Crawl Spaces: Ideal for insulating interior foundation walls.
Under-Slab: Provides a thermal break beneath concrete floors.
Attics: Can be used to enhance ceiling insulation and prevent heat loss.
Pro Tip: For maximum energy efficiency, seal all joints and seams with high-quality construction tape to create a complete air barrier.