EnergyGuard ISO Polyiso Insulation Board (2.5 in, 4×8)

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:

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 4×8 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: YesEnergyGuard 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 isnt only what you seeits 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 refinedseason after season.

Choose GAF EnergyGuard ISO to add high-performance insulation where it matters mostyour roof and building envelope.