Atlas ACFoam-III Grade-III Polyiso CGF Roof Insulation, 1-1/2 in x 4 ft x 8 ft (25 psi)
SKU: 59158305102

Atlas ACFoam-III Grade-III Polyiso CGF Roof Insulation, 1-1/2 in x 4 ft x 8 ft (25 psi)

Sale price$615.86 Regular price$684.29
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours Β· Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Atlas ACFoam-III Grade-III Polyiso CGF Roof Insulation, 1-1/2 in x 4 ft x 8 ft (25 psi)ACFoam III 1 1 2" Polyiso Roof Insulation Board Closed cell polyisocyanurate roof insulation with fiber reinforced organic felt facers for durable thermal performance. The Grade III board delivers 25 psi compressive strength and long term thermal resistance in a 1 1 2 in thick, 4x8 format. Key Features: Durable Polyiso Core: Closed cell foam for strong thermal resistance (LTTR) Reinforced Facers: Non asphaltic, fiber reinforced organic felt facers

ACFoam-III 1-1/2" Polyiso Roof Insulation Board

Closed-cell polyisocyanurate roof insulation with fiber-reinforced organic felt facers for durable thermal performance. The Grade-III board delivers 25 psi compressive strength and long-term thermal resistance in a 1-1/2 in thick, 4x8 format.


Key Features:

  • Durable Polyiso Core: Closed-cell foam for strong thermal resistance (LTTR)
  • Reinforced Facers: Non-asphaltic, fiber-reinforced organic felt facers improve stability
  • Grade-III Strength: 25 psi compressive strength supports rooftop applications
  • Standard Panel Size: 1-1/2 in thickness, 4 ft x 8 ft board for efficient coverage
  • Broad Approvals: Meets ASTM C1289 and multiple UL/FM, Miami-Dade, and Florida product approvals

Specifications Table:

Specification Details
Thickness 1-1/2" (38.1 mm)
Length 8' (2440 mm)
Width 4' (1220 mm)
Compressive Strength 25 psi (Grade-III)
Core Closed-cell polyisocyanurate foam
Facers Non-asphaltic, fiber-reinforced organic felt, integrally bonded
Style Polyiso
Unit of Measure SQ|PC
Applicable Standards/Approvals ASTM C1289; CAN/ULC-S704; CCMC No. 12423-L; UL Certified for Canada; UL 1256; UL 790 (ASTM E108); UL 263 (ASTM E119); UL 1897; FM 4450/4470; IBC Chapter 26 & NBC; California State; Miami-Dade County Approved; Florida Product Approved; Greenguard Certified; RCI Approved; NRCA Approved; AIA Approved; U.S. Green Building Council Member
Area Coverage 1024 sq. ft. per unit
Item Weight 13 lb
Product Number ATLAC3251548

Frequently Asked Questions (FAQ):

Q: What is the board size and thickness?
A: Each panel is 4 ft x 8 ft and 1-1/2 in thick.


Q: What is the compressive strength?
A: Grade-III provides 25 psi compressive strength.


Q: What type of facers does it use?
A: Non-asphaltic, fiber-reinforced organic felt facers integrally bonded to the polyiso core.


Q: What standards and approvals does it meet?
A: ASTM C1289, CAN/ULC-S704, UL 1256/790/263/1897, FM 4450/4470, Miami-Dade and Florida approvals, among others.


Q: Where is this insulation typically used?
A: As roof insulation in commercial or residential low-slope roofing systems requiring high thermal performance and strength.


Sleek Strength for Elevated Roofscapes

This streamlined board brings a quiet confidence to the envelope, marrying crisp geometry with robust performance. The fiber-reinforced facer lends a tailored finish while the polyiso core delivers enduring warmth. Layer it to sculpt clean, modern rooflines and maintain a refined silhouette. A discerning essential for luxurious, high-performing architecture.


Choose ACFoam-III to upgrade your roof’s efficiency and strength with proven, approved performance.

Warranty

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: 59158305102

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 β˜…β˜…β˜…β˜…β˜…
Based on 1525 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chiller Leonard
Waukegan, US
β˜…β˜…β˜…β˜…β˜… 5
Excellent works great and I’m bang for your buck
Size: 8.5"x14"
I love this paper. It prints, nice and clear I will be buying more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
F
Verified Purchase
Fe Oyekola
Bozeman, US
β˜…β˜…β˜…β˜…β˜… 5
Very good for sublimation
Size: 8.5"x11"
Intact and very good for my sublimation
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
T
Verified Purchase
Tasha
Houston, US
β˜…β˜…β˜…β˜…β˜… 5
Great paper and beginner friendly
Size: 8.5"x11"
I Really like using this A-Sub paper
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
J
Verified Purchase
Jon
Natrona Heights, US
β˜…β˜…β˜…β˜…β˜… 4
Works
Size: 8.5"x11"
Works great for sublimation. Get plenty of sheets. Great value for the price. The paper is pretty thick and seems to hold a good amount of ink without smearing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
M
Verified Purchase
Miss Washington Creates
Boise, US
β˜…β˜…β˜…β˜…β˜… 5
My go-to sublimation paper for crafting
Size: 8.5"x11"
I've used several sublimation papers, and this one has worked really well for my crafting projects. The colors transfer bright and vibrant, and the images come out crisp with good detail when using the proper sublimation printer and ink. The paper feeds smoothly through my printer and feels like a good quality weightβ€”not too thin and not overly thick. I've used it for tumblers, keychains, and other sublimation projects, and I've been happy with the results. I also appreciate getting 110 sheets in one pack because it lasts a while, especially when working on multiple projects at once. Overall, this is a reliable sublimation paper that gives consistent results and is great for crafters or small business owners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026

recommand products