Atlas ACFoam-II Polyiso Roof Insulation Board, 3.3 in. Thick, 4 ft. x 8 ft.
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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

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

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 2193 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Janet Lanier
Dallas, US
★★★★★ 4
Wobbly but Usable
Color: Grey, Size: Standard - 4 Panel
A bit wobbly, but good enough for the price when you need a solid background for remote work calls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
L
Verified Purchase
Lateefah
Carnegie, US
★★★★★ 5
Nice and easy to assemble
Color: Black, Size: Standard - 4 Panel
I absolutely love this 4-panel room divider! It was super easy to assemble — I had it set up in just a few minutes. The material isn’t too see-through, which gives just the right amount of privacy while still letting some light through. It does exactly what I needed it to do and looks so clean and sleek in my space. Perfect balance of style and function — highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
V
Verified Purchase
Virginia C.
Belleville, US
★★★★★ 5
A quick private space
Color: Black, Size: Standard - 4 Panel
Went together easily, just the right height and width for just a bit of privacy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
W
Verified Purchase
WW
Natrona Heights, US
★★★★★ 5
Very useful
Color: Black
I’ve been using this room divider to separate my space from my daughter’s, and it has worked out really well. It provides just the right amount of privacy while still keeping the room feeling open and comfortable. The design is simple yet stylish, so it blends nicely with our decor. It’s also lightweight and easy to move when needed, which is a big plus. The material feels durable and well-made, not flimsy at all. Overall, it’s a practical and attractive solution for shared spaces, and I’m very happy with this purchase. I would definitely recommend it to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
A
Verified Purchase
Amy
Fort Morgan, US
★★★★★ 5
Great Room Divider
Color: Black
This product is a great room divider that decent quality and worth the price tag. The look is sleek and fits seamlessly into any room without complaint. The assembly was easy to follow and the quality is long lasting. Not only that, I need it as my sons share a room and we’re looking for some privacy. The divider is able to extend across a decently large area really divide the room as it has 4 panels. Overall, this is a great product for its cost and if your looking for a room divider that’s not too costly, this is the pick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026

recommand products