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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

★★★★★

"Ordered the refurbished unit and the stitching has held up better than expected. Tested it through a full week of rain. I'm in Kansas City, MO. Happy with my purchase."

Linda Collins Linda Collins Jun 18, 2026
★★★★★

"Shipping was faster than I expected. Battery lasts a full day of use. I use it in the garage most evenings. Exactly what I needed."

Dennis Khan Dennis Khan Jun 11, 2026
★★★★★

"Tracking info was accurate the whole way. It heats up fast and evenly. Took it on a road trip last weekend. Wish it came in more colors, otherwise great. Exactly what I needed."

Emily Cox Emily Cox Jul 7, 2026
★★★★☆

"Picked the red option and the zipper glides without catching. Used it at the desk for video calls all month. Would buy again."

Margaret Brown Margaret Brown Aug 6, 2026
★★★★★

"Ordered the refurbished unit and it heats up fast and evenly. Used it on my commute all month. Definitely a repeat customer after this."

Mia Adams Mia Adams Aug 7, 2026
★★★☆☆

"Went with the XL and the fabric is surprisingly breathable. Took it to the lake house for the weekend. The strap is a little long for me, easy enough to adjust. Would recommend."

Michael Martin Michael Martin Jun 6, 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
★★★★★

"Chose the king size and the color matched the listing exactly. It's been on my nightstand since it arrived. Happy with my purchase."

William Baker William Baker Jun 13, 2026
★★★★☆

"Picked the gray model and it heats up fast and evenly. It's been on my nightstand since it arrived. Packaging tape was loose on one end, product was fine. I'm in Indianapolis, IN. Couldn't ask for more at this price."

Jerry Carter Jerry Carter May 2, 2026
★★★★☆

"Picked the blue one and the zipper glides without catching. Took it to the lake house for the weekend. Happy with my purchase."

Angela Martinez Angela Martinez Jul 1, 2026

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