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GAF EnergyGuard Iso Polyiso Rigid Insulation Board, 2.6 in Thick, 4 ft x 4 ft Sheet

$40.91

SKU: LGRX19441 Category:
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Description

EnergyGuard Iso Polyiso Insulation Board (4′ x 4′)

GAF EnergyGuard Iso is a rigid polyiso insulation board designed to add high thermal value to commercial roofing assemblies. It features glass fiber reinforced cellulosic felt facers bonded to a polyisocyanurate foam core to help improve energy efficiency and support green building goals.


Key Features:

  • High-Performance Roof Insulation: Polyiso foam core delivers high thermal value in low-slope/commercial roof assemblies
  • Durable Facers: Glass fiber reinforced cellulosic felt facers help provide stability and jobsite toughness
  • Easy to Handle: 4 ft x 4 ft sheet format is convenient for staging and placement
  • Energy-Saving Upgrade: Adds insulation value to help reduce heat flow through the roof deck
  • Commercial Roofing Compatible: Intended for use as roof insulation in commercial roofing systems

Specifications Table:

Specification Details
Brand GAF
Product line EnergyGuard Iso
Product type Rigid insulation board (polyiso roof insulation panel)
Thickness 2.6 in
Sheet size 4 ft x 4 ft
Unit of measure SH – Sheet
Category Insulation & Weatherproofing
Sub-category Flat & Fan Fold Rigid Insulation Boards

Frequently Asked Questions (FAQ):

Q: What size and thickness is this board?
A: This product is a 4 ft x 4 ft sheet with a 2.6 in thickness.


Q: What is the insulation material?
A: It is a polyisocyanurate (polyiso) foam core with glass fiber reinforced cellulosic felt facers.


Q: Where is it typically used?
A: It’s designed as a roof insulation panel for commercial roofing assemblies.


Q: Can it contribute to green building goals?
A: GAF notes the EnergyGuard Polyiso Insulation product contributes to green building rating systems (see GAF sustainability documentation).


A Clean, Architectural Layer of Comfort

Think of this as the quiet luxury of a space—an invisible layer that elevates comfort with crisp, architectural intention. The rigid, 4′ x 4′ format feels purposeful and precise, while the polyiso core is all about performance beneath the surface. Pair it with a well-detailed roof assembly and let the building’s envelope do the heavy lifting—more control, less compromise. It’s the kind of behind-the-scenes essential that makes elevated living feel effortless.


Add GAF EnergyGuard Iso insulation to your roofing assembly to boost thermal performance with a durable, jobsite-ready rigid board.

Reviews

★★★★★

"Came earlier than the promised date. The finish is clean with no rough edges. Brought it to a tailgate and it performed. Five stars from me."

Barbara Chen Barbara Chen May 1, 2026
★★★★★

"Ordered the 3-pack on sale and it feels sturdy in the hand. Brought it camping and it held up fine. Couldn't ask for more at this price."

Robert Evans Robert Evans Jun 24, 2026
★★★★★

"Order processed quicker than the estimate. Connectors click in securely. It's been my go-to for morning coffee runs. Five stars from me."

Victor Torres Victor Torres Jun 14, 2026
★★★★☆

"Got the travel size and the grip is comfortable for long sessions. Used it during a move and nothing shifted. Solid deal, no regrets."

Samuel Roberts Samuel Roberts Jul 8, 2026
★★★★★

"Tracking info was accurate the whole way. Setup took less than five minutes. It lives in my gym bag now. Packaging tape was loose on one end, product was fine. I'm in Indianapolis, IN. Solid deal, no regrets."

Ronald Anderson Ronald Anderson Jul 22, 2026
★★★★★

"Shipping was faster than I expected. Brought it to a tailgate and it performed. Five stars from me."

Ronald Ali Ronald Ali Jun 27, 2026
★★★★★

"Picked the red option and the color matched the listing exactly. Used it for a week of meal prep. The strap is a little long for me, easy enough to adjust. Exactly what I needed."

Jennifer King Jennifer King Jun 27, 2026
★★★★★

"Ordered the limited edition and it does exactly what it's supposed to do. Used it at the desk for video calls all month. Button is a bit stiff at first but loosens up with use. Five stars from me."

Brenda Turner Brenda Turner Aug 2, 2026
★★★★★

"Chose the larger size and the fabric is surprisingly breathable. I've been using it daily for about two weeks now. I'm in Oklahoma City, OK. No complaints so far."

Gary Turner Gary Turner Jul 5, 2026
★★★★★

"Chose the stainless version and the screen is sharp and bright in daylight. It lives in my gym bag now. I'm in Chicago, IL. Worth the money."

Mark Miller Mark Miller Jul 3, 2026

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