GAF EnergyGuard Iso Glass Facer Polyiso Insulation Board — 2 in. x 4 ft. x 8 ft. Sheet
2" x 4' x 8' polyiso roof insulation board (glass facer)
GAF EnergyGuard Iso is a rigid polyisocyanurate (polyiso) insulation board designed for commercial roofing applications. The 2"-thick, 4' x 8' sheet helps improve thermal performance while providing durable glass-fiber-reinforced facer surfaces.
Key Features:
- Rigid Polyiso Core: Polyisocyanurate foam insulation panel designed for high thermal value in roofing assemblies.
- Glass-Reinforced Facers: Glass fiber reinforced facer layers help provide a durable surface for commercial roof systems.
- Standard 4' x 8' Coverage: Large-format sheet helps cover roof areas efficiently with fewer seams.
- 2-Inch Thickness: Provides a thicker insulation layer option for building up roof insulation packages.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Product line | EnergyGuard Iso |
| Product type | Polyiso insulation board |
| F facer type | Glass facer |
| Thickness | 2.0 in |
| Sheet size | 4 ft x 8 ft |
| Unit of measure | Sheet |
| Category | Insulation & Weatherproofing |
| Sub-category | Flat & Fan Fold Rigid Insulation Boards |
Frequently Asked Questions (FAQ):
Q: What size is each board?
A: Each sheet is 4' x 8' and 2" thick.
Q: What is this insulation typically used for?
A: It’s a rigid polyiso board commonly used in commercial/low-slope roofing insulation assemblies.
Q: Does this board have a facer?
A: Yes—this variant is listed as an “Iso Glass Facer,” and EnergyGuard Polyiso is described with glass-fiber-reinforced facer materials.
Q: How is it usually installed?
A: Installation varies by roof system; it’s typically placed in layers as part of a commercial roof assembly per project and manufacturer requirements.
A Crisp, Architectural Layer of Performance
Think of this polyiso board as the quiet, architectural layer that makes a space feel effortless—cooler in summer, warmer in winter, and inherently more refined. The glass-facer finish reads clean and technical, like a perfectly tailored understructure. Use it as the performance backbone in a modern roofing build where details matter as much as durability. It’s the kind of invisible essential that elevates the entire experience of living well.
Choose GAF EnergyGuard Iso Glass Facer polyiso boards to build a more energy-smart roof assembly with dependable rigid insulation performance.