GAF EnergyGuard Grade-II (20 psi) Polyiso Roof Insulation, 2.7 in Thick, 4 ft x 8 ft Panels
SKU: 1234764812

GAF EnergyGuard Grade-II (20 psi) Polyiso Roof Insulation, 2.7 in Thick, 4 ft x 8 ft Panels

Sale price$32.14 Regular price$35.71
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Description

GAF EnergyGuard Grade-II (20 psi) Polyiso Roof Insulation, 2.7 in Thick, 4 ft x 8 ft PanelsEnergyGuard Grade II Polyiso Roof Insulation (2. 7" x 4' x 8') Rigid polyisocyanurate roof insulation with glass fiberreinforced cellulosic felt facers for durable thermal performance. Grade II formulation delivers 20 psi compressive strength in 2. 7 inch thick 4x8 panels, ideal for commercial roofing assemblies. Key Features: High Compressive Strength: Grade II formulation provides 20 psi for robust rooftop durability Efficient Thermal Core:

EnergyGuard Grade-II Polyiso Roof Insulation (2.7" x 4' x 8')

Rigid polyisocyanurate roof insulation with glass fiber–reinforced cellulosic felt facers for durable thermal performance. Grade-II formulation delivers 20 psi compressive strength in 2.7-inch thick 4x8 panels, ideal for commercial roofing assemblies.


Key Features:

  • High Compressive Strength: Grade-II formulation provides 20 psi for robust rooftop durability
  • Efficient Thermal Core: Polyisocyanurate foam core helps improve energy efficiency in roofing systems
  • Reinforced Facers: Glass fiber–reinforced cellulosic felt facers enhance dimensional stability and handling
  • Commercial Approvals: Meets ASTM standards; FM Approved, UL Classified, Florida and Miami-Dade approvals, PIMA Quality Mark
  • Bundle Coverage: 17 pieces per bundle covering approximately 544 sq. ft.

Specifications Table:

Specification Details
Brand GAF
Product Name EnergyGuard Grade-II (20 psi) Polyiso Roof Insulation
Panel Dimensions 4 ft x 8 ft
Thickness 2.7 in
Compressive Strength 20 psi (Grade-II)
Core Material Polyisocyanurate foam
Facers Glass fiber–reinforced cellulosic felt
Pieces per Bundle 17
Bundle Coverage 544 sq. ft. per bundle
Item Weight 17.152 lb (per piece)
Unit of Measure SQ | PC
Style Polyiso
Applicable Standards and Approvals ASTM C1289 Type II (Class 1); ASTM D1621; ASTM D2126; ASTM C209; ASTM E96; ASTM E84; FM Approved; UL Classified; Florida Building Code Approved; Miami-Dade County Approved; PIMA Quality Mark
Manufacturer Number 20 2.7
Product Number GAF27ISO

Frequently Asked Questions (FAQ):

Q: What are the panel dimensions and thickness?
A: Each panel is 4 ft x 8 ft and 2.7 inches thick.


Q: How many pieces come in a bundle and what area do they cover?
A: A bundle includes 17 panels, covering about 544 square feet.


Q: What is the compressive strength rating?
A: Grade-II panels are rated at 20 psi compressive strength.


Q: What standards and approvals does it meet?
A: ASTM C1289 Type II (Class 1), ASTM D1621, D2126, C209, E96, E84; FM Approved; UL Classified; Florida Building Code and Miami-Dade County Approved; PIMA Quality Mark.


Q: What are the facers made of?
A: Glass fiber–reinforced cellulosic felt facers bonded to the polyiso core.


Sleek, Structural Warmth for Elevated Roofscapes

EnergyGuard’s refined, sand-toned surface brings a tailored sensibility to the layers of a roof assembly. The reinforced facers read crisp and confident, supporting a silhouette that feels both modern and enduring. Pair it with clean metal edges and a monochrome membrane for a polished, architectural statement. It’s a foundational piece that whispers luxury through performance and precision.


Choose EnergyGuard Grade-II to reinforce your roof with 20 psi strength and efficient insulation—order today to streamline your next install.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1234764812

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Product Reviews
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 1
There seems to be a chronic problem with the provided dispensing pump.
Size: 1 Gallon + Tool, Set name: Off-Road Formula
I looked at online reviews of the product performance and was impressed by its purported ability seal tire punctures. While the product may (or may not) perform well, the provided dispensing pump is pathetically unsuited for the application and it is impossible to clear the pump once the material clogs the small dispensing port. Some of the reviews indicated this but i assumed that they were not very mechanical inclined customers. The product, by design, has particulates, of varying sizes, suspended in the liquid sealant. The port on pump is very small and easily becomes blocked with the sealant and particulates that cannot be cleared; even when following the instructions to do so. It is very irresponsible for the manufacturer to continue selling this item with inevitable relative failure of the pump as this is the only way to get the sealant into a tire.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2025
V
Verified Purchase
VT
Chelsea, US
★★★★★ 5
Good for ebike tires
Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula
Got it for my son’s older ebike that my wife rides now. He kept on popping tubes, maybe because of his weight. Anyhow, I fixed it up for my wife and put some FlatOut in it to prevent flats. Seems to work so far. Got the off road FlatOut for my ebike’s fat tires. Easy to add to the tires. The pump clogs up but it’s easy to clean. I will always add this to all tires moving forward!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
B
Verified Purchase
Brian ward
Los Angeles, US
★★★★★ 5
Easy to use and works great
Size: 1 Gallon + Tool, Set name: Off-Road Formula
Easy to use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
K
Verified Purchase
KW
Lexington, US
★★★★★ 5
Worked on slow leak… one month already!!!
Style: 18oz
Edit: Still holding proper pressure at 2-months !!! Had a slow leak where my tire went from 44psi to ~18psi over 2-3 days… Dashboard light would let me know every few days that I had a tire problem and I would inflate the tire back up to 44psi… Anyway, I used this product and filled air back to 44 psi and it’s held the pressure for a month already !!!! Be sure to deflate tire to ~15 PSI before adding the product… it only took about 30 seconds to empty the container into my tire with the tire pressure low. Very happy with this product !!!
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Reviewed in the United States on April 6, 2026
K
Verified Purchase
Kindle Customer
Natrona Heights, US
★★★★★ 5
Excellent stuff!
Style: 18oz
Used this on a Z-Trac with a flat and it fixed it and has held up for over 8 months.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026

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