SKU: 46948615393

Atlas ACFoam-II Polyiso Roof Insulation Board, 3.3 in. Thick, 4 ft. x 8 ft.

Sale price$461.90 Regular price$513.22
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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

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Description

Atlas ACFoam-II Polyiso Roof Insulation Board, 3.3 in. Thick, 4 ft. x 8 ft.3. 3" Polyiso Roof Insulation Board (4' x 8') Closed cell polyisocyanurate roof insulation board with fiber reinforced organic felt facers for superior long term thermal resistance. Ideal for commercial and residential low slope roofing systems, this 3. 3 inch thick board comes in a 4 by 8 foot sheet for efficient coverage. Key Features: High Thermal Performance: Polyiso core delivers strong LTTR for energy efficient roofs Durable Felt Facers: Non

3.3" Polyiso Roof Insulation Board (4' x 8')

Closed-cell polyisocyanurate roof insulation board with fiber-reinforced organic felt facers for superior long-term thermal resistance. Ideal for commercial and residential low-slope roofing systems, this 3.3-inch thick board comes in a 4-by-8-foot sheet for efficient coverage.


Key Features:

  • High Thermal Performance: Polyiso core delivers strong LTTR for energy-efficient roofs
  • Durable Felt Facers: Non-asphaltic, fiber-reinforced organic facers enhance strength and adhesion
  • Code Compliant: Meets ASTM C1289 and multiple UL, FM, and regional approvals including Miami-Dade and Florida Product Approval
  • Versatile Application: Suitable for a variety of low-slope roofing assemblies as cover or insulation board
  • Large Panel Size: 4' x 8' sheets simplify layout and speed installation

Specifications Table:

Specification Details
Product name 3.3" x 4' x 8' Polyiso Roof Insulation
Brand Atlas
Series ACFoam-II
Thickness 3.3"
Length 8' (2440 mm)
Width 4' (1220 mm)
Core material Closed-cell polyisocyanurate (polyiso) foam
Facers Non-asphaltic, fiber-reinforced organic felt facers
Unit of measure SQ | PLT | PC
Approximate weight 33 lb
Applicable standards/approvals ASTM C1289; CAN/ULC-S704; CCMC No. 12464-L; UL Certified for Canada; UL 1256; UL 790 (ASTM E108); UL 263 (ASTM E119); UL 1897; FM 4450/4470 Approved; IBC Chapter 26 & NBC; Miami-Dade County Approved; Florida Product Approved; UL Greenguard Gold Certified; RCI Approved; AIA Approved; U.S. Green Building Council Member; National Roofing Contractors Association
SKU manufacturer number AC2_054
Seller product number ATL33ISO
Coverage (listing note) 448 sq. ft. per unit (as listed)

Frequently Asked Questions (FAQ):

Q: What are the board dimensions and thickness?
A: Each board is 4 feet by 8 feet and 3.3 inches thick.


Q: What facers are used on this insulation?
A: It uses non-asphaltic, fiber-reinforced organic felt facers bonded to a polyiso foam core.


Q: Is this product code approved?
A: Yes—complies with ASTM C1289 and carries UL, FM, Miami-Dade, and Florida Product Approvals, among others.


Q: What is the typical use?
A: Designed for low-slope roofing systems to provide thermal insulation and a stable substrate within the roof assembly.


Q: How much does one board weigh?
A: Approximately 33 lb per board.


Sleek Thermal Armor for Modern Rooflines

This polyiso board brings a refined, architectural polish to roof assemblies while elevating performance. The fiber-felt facer offers a tailored, uniform surface that integrates beautifully beneath membranes. Layer it to sculpt a crisp, contemporary profile and harness impressive thermal efficiency. It’s a quiet luxury essential—clean, smart, and impeccably composed.


Boost your roof’s efficiency and reliability—choose Atlas ACFoam-II 3.3" Polyiso today.

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: 46948615393

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Teresa Rafeek
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★★★★★ 2
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Lasted about an hour.
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Reviewed in the United States on November 13, 2025
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Ksett
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★★★★★ 5
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Size: Small (Pack of 1)
Our dog loves this and uses it everyday. Still going strong 3 months later.
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Reviewed in the United States on May 11, 2026
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Mike c
Birmingham, US
★★★★★ 5
My 2 German shepherds love these good quality last a good bit
Size: Large (Pack of 1)
I buy these for my 2 German shepherds. My male is a heavy chewer and he will spend time with this everyday until he starts to wear it down or makes it into a makeshift shank and I replace it Last about 3-4 months for aggressive chewers. Highly recommend (keeps them from chewing my stuff)
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Reviewed in the United States on May 1, 2026
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Reviewer 22
Waukegan, US
★★★★★ 5
The best bone you can get for pitbulls!
Size: Large (Pack of 1)
Can I give these more than five stars? Please?? They truly deserve more than that! I have bought these bones for the last 2 years for my pitbull mix, who is a very aggressive chewer. Her favorite thing to do is just lay and chew. These bones last FOREVER! She can lay there and chew all day long and they will last her MONTHS! It’s honestly amazing! These are the best bones we’ve ever given her and they are the only ones we’ll buy her! Not only do they last forever, they’re safe and natural too! Best product ever!
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Reviewed in the United States on January 10, 2026
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Dee
Chelsea, US
★★★★★ 4
Great for aggressive chewers, but small mess
Size: Large (Pack of 1), Size: Large (Pack of 1)
He took it right away! It’s a great size. We’ll see how it holds up ONE MONTH UPDATE: (photo included) He loves it still! Still a bit messy but holding up great and he’s a aggressive chewer 1 WEEK UPDATE (photo update included) The bone is great. He loves it and it’s been holding up great. Our 8 month puppy is a super chewer and 60 lbs. the bone has signs of wear but nothing crazy. I went from 5 stars to 4 stars because whenever he chews the bone, the small tiny pieces of bone/wood go everywhere and they’re sticky/hard and make kind of a mess. But still would get this bone again and highly recommend
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Reviewed in the United States on December 16, 2025

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