GAF EnergyGuard ISO Polyiso Rigid Insulation Board 2.5 in x 4 ft x 8 ft (Sheet)
GAF EnergyGuard ISO Polyiso Rigid Insulation Board 2.5 in x 4 ft x 8 ft (Sheet)
EnergyGuard ISO Polyiso Insulation Board (2.5 in, 4x8)
GAF EnergyGuard ISO is a rigid polyiso insulation board designed to deliver strong thermal performance in commercial roofing and other building envelope applications. The glass-fiber reinforced facers and polyisocyanurate foam core help create an efficient, durable insulation layer.
Key Features:
- High Thermal Performance: Polyiso foam core provides high thermal value for roofing insulation assemblies.
- Durable Facers: Glass fiber reinforced facers help support jobsite handling and roof system performance.
- Standard Sheet Size: 4 ft x 8 ft panels help cover large areas efficiently.
- Thickness for Build-Up: 2.5 in thickness supports achieving higher insulation levels with fewer layers.
- Commercial Roofing Ready: Intended for use as a roof insulation panel in commercial roofing systems.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Product line | EnergyGuard Iso |
| Insulation type | Polyiso (polyisocyanurate) rigid board |
| Thickness | 2.5 in |
| Sheet size | 4 ft x 8 ft |
| Unit of measure | Sheet |
| Category | Insulation & Weatherproofing |
| Sub-category | Flat & Fan Fold Rigid Insulation Boards |
| Facers (as described by manufacturer) | Glass fiber reinforced cellulosic felt facers (GRF) |
| Core material (as described by manufacturer) | Polyisocyanurate foam |
| R-value (listed on one retailer page) | R-15.3 |
| Compressive strength (listed on one retailer page) | 20 PSI |
Frequently Asked Questions (FAQ):
Q: What are the panel dimensions and thickness?
A: Each sheet is 4 ft x 8 ft and 2.5 inches thick.
Q: What type of insulation is this?
A: It is a polyisocyanurate (polyiso) foam insulation board with glass-fiber reinforced facers.
Q: Is the R-value known for this thickness?
A: One listing for the 2.5 in 4x8 board notes R-15.3 (verify against the specific product label/documentation for your job submittal requirements).
Q: Is this product intended for roofing?
A: Yes—EnergyGuard Polyiso Insulation is described as a roof insulation panel for commercial roofing applications.
Q: Does it support green building programs?
A: GAF notes the product contributes to green building rating systems (see product sustainability documentation for details).
A Quiet, Invisible Layer of Luxury
Great design isn’t only what you see—it’s what you feel. This crisp, architectural 4' x 8' polyiso panel slips into the build like a tailored understructure, elevating comfort with serious thermal performance. Its clean, rigid form and reinforced facers bring a confidence that reads as precision behind the scenes. Consider it the essential foundation that makes a space feel effortlessly refined—season after season.
Choose GAF EnergyGuard ISO to add high-performance insulation where it matters most—your roof and building envelope.