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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

★★★★☆

"Chose the stainless version and the stitching has held up better than expected. Brought it to a tailgate and it performed. I'm in Pittsburgh, PA. Pleasantly surprised."

Michelle Ali Michelle Ali Aug 13, 2026
★★★★★

"Chose the king size and the weight feels balanced and premium. Brought it to a tailgate and it performed. No complaints so far."

Patricia Stewart Patricia Stewart Jul 14, 2026
★★★★★

"Chose the larger size and the sound is clear without any static. Used it during a move and nothing shifted. The box was a little beat up but the item inside was perfect. I'm in Boston, MA. Shipping was quick and the item delivered."

Elizabeth Flores Elizabeth Flores Aug 2, 2026
★★★★★

"Picked the blue one and the cushioning is supportive after hours. It's been my go-to for morning coffee runs. Solid deal, no regrets."

Donna Bailey Donna Bailey Jul 12, 2026
★★★★★

"Ordered the limited edition and it feels sturdy in the hand. I've had it on the kitchen counter daily. I'm in Tucson, AZ. Pleasantly surprised."

Sandra Miller Sandra Miller Aug 2, 2026
★★★★★

"Came earlier than the promised date. Used it for a week of meal prep. Button is a bit stiff at first but loosens up with use. Definitely a repeat customer after this."

Andrew Wright Andrew Wright Jul 9, 2026
★★★★★

"Got the travel size and the weight feels balanced and premium. Used it at the desk for video calls all month. I'm in Milwaukee, WI. Solid deal, no regrets."

Gary Baker Gary Baker Jul 23, 2026
★★★★★

"Bought the starter kit and the finish is clean with no rough edges. Running it through my routine for a month. Solid deal, no regrets."

Jerry Thompson Jerry Thompson May 28, 2026
★★★★★

"Ordered the 3-pack on sale and the stitching has held up better than expected. Took it on a road trip last weekend. Worth the money."

Steven Roberts Steven Roberts Aug 4, 2026
★★★★★

"Went with the XL and the compartments keep everything organized. I keep it in the car for road trips. Runs a touch small but nothing a size up didn't fix. Happy with my purchase."

Howard Perez Howard Perez Jul 27, 2026

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