SKU: 37313394497

Atlas ACFoam-II Polyiso Roof Insulation Board, 1 in x 4 ft x 8 ft, Grade-II (20 psi)

Sale price$461.90 Regular price$513.22
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Atlas ACFoam-II Polyiso Roof Insulation Board, 1 in x 4 ft x 8 ft, Grade-II (20 psi)Atlas 1" Polyiso Roof Insulation Board (4'x8') Closed cell polyisocyanurate roof insulation with fiber reinforced organic felt facers for durable, high performance thermal protection. This Grade II board provides 20 psi compressive strength and consistent LTTR values across thickness options. Ideal for commercial and residential roofing assemblies. Key Features: Durable Construction: Closed cell polyiso core bonded to non asphaltic, fiber reinforced

Atlas 1" Polyiso Roof Insulation Board (4'x8')

Closed-cell polyisocyanurate roof insulation with fiber-reinforced organic felt facers for durable, high-performance thermal protection. This Grade-II board provides 20 psi compressive strength and consistent LTTR values across thickness options. Ideal for commercial and residential roofing assemblies.


Key Features:

  • Durable Construction: Closed-cell polyiso core bonded to non-asphaltic, fiber-reinforced felt facers for strength and stability
  • Grade-II Strength: 20 psi compressive rating supports robust roofing assemblies
  • Thermal Performance: Engineered for long-term thermal resistance (LTTR) to improve energy efficiency
  • Code Compliance: Meets major standards including ASTM C1289, CAN/ULC-S704, and multiple UL/FM approvals
  • Standard Size: 1" thickness in a 4' x 8' sheet for efficient coverage and handling

Specifications Table:

Specification Details
Product Name 1" x 4' x 8' Grade-II (20 psi) Polyiso Roof Insulation
Brand Atlas
Style Polyiso
Thickness 1" (25.4 mm)
Length 8' (2440 mm)
Width 4' (1220 mm)
Compressive Strength Grade-II (20 psi)
Facers Non-asphaltic, fiber-reinforced organic felt
Core Closed-cell polyisocyanurate (polyiso)
Item Weight 10 lb
Unit of Measure SQ|SHT|PC
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; 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_004
Product Number ATL1ISO
Area per Unit 1536 Sq. Ft. per Unit
Long Description Closed-cell polyisocyanurate foam core integrally bonded to non-asphaltic, fiber-reinforced organic felt facers. ACFoam-II is offered in a variety of thicknesses, providing long-term thermal resistance (LTTR) values.

Frequently Asked Questions (FAQ):

Q: What is the board size and thickness?
A: Each board is 4 feet by 8 feet with a 1-inch thickness.


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


Q: Is it approved for use under building codes?
A: Yes, it meets ASTM C1289, CAN/ULC-S704, and carries UL, FM, Miami-Dade, and Florida approvals, among others.


Q: What is the compressive strength?
A: Grade-II with a 20 psi compressive strength rating.


Q: Where is this insulation typically used?
A: In roof assemblies for commercial and residential projects requiring high thermal performance and code-compliant materials.


Sleek Thermal Armor for Modern Roofscapes

This board delivers a refined, minimal profile while elevating the roof’s performance with confident thermal integrity. The fiber-reinforced felt facer lends a sophisticated, tailored finish that layers seamlessly beneath membranes. Pair it with clean-lined flashing and a monochrome roof palette for a crisp, contemporary silhouette. A smart essential for luxurious, energy-conscious architecture.


Upgrade your roof’s performance with Atlas ACFoam-II—add to cart for code-compliant, energy-efficient insulation 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: 37313394497

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 2493 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
H
Verified Purchase
HEATHER
Alexandria, US
★★★★★ 4
Durable
Color: E) 8-Pack 2.5" Balls (Yellow)
My dogs love them. They are very bouncy, and ideal size, and durable. Great alternative to a tennis ball which in my house only last 30 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
K
Verified Purchase
Kindle Customer
Grantham, US
★★★★★ 5
Toughest dang balls I ever played with
Color: D) 4-Pack 3" Balls (Yellow), Color: D) 4-Pack 3" Balls (Yellow)
These things are amazing. We have a ball obsessed Husky mix and he has destroyed Kongs, Chuck Its, and a whole lot of other ball shaped objects. These things? We bought the 4 pack because we bought 4 Chuck Its and they lasted a year, all 4 of them only a year, before they were destroyed. A year after buying these? We only bought more because he lost 3 of them. I think we did find one under the dresser after buying this pack... But the others? They either ended up thrown over the fence into the woods or lost in the holes in the yard the monster digs up. Other than a few pockmarks from his teeth and maybe some mud, they may as well be brand new even after a year or two. Probably the most chew resistant thing we've ever bought him. They're really solid rubber and since he hasn't managed to bite into them to take out a chunk, they're safe as hell. Being as big as they are, I don't worry he's gonna choke unattended on them like the usual size of ball. About the only concern is forcing breaks so he can have breathing moments when he manages to talk us into fetch outside. It fits in the larger Chuck It thrower too, so we haven't lost any value from having those torn up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
Katy Beems
Chelsea, US
★★★★★ 5
Sturdy bouncy fun!
Color: D) 4-Pack 3" Balls (Yellow), Color: D) 4-Pack 3" Balls (Yellow)
Great product. My big 70lb Sheppard puppy loves it, hasn’t stopped playing with it since it arrived. She throws it about and chases it, had a good chew on it and even put it in her favorite toys bin. Sturdy, firm and very bouncy. And there are 3 more in the bag for an awesome price. Bright color will make it easy to find and holes thru it will prevent choking and I can string it on a line for training play.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2025
R
Verified Purchase
Rhonda T Hills
Los Angeles, US
★★★★★ 5
Dogs love these
Color: C) 2-Pack 2.5" Balls (Yellow)
Great quality balls for tough chewers. I love them, but wish the orange ones were available more...I've been checking cuz they are easier to find in the yard than the green that blends in. Our dogs love them and I like the weight for throwing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
S
Verified Purchase
Sea Jay
Fort Morgan, US
★★★★★ 5
Great quality and folding it in half is a plus. Fits under a seat in car/truck.
Purchased another, as we need one in each car. This is a great ball thrower, especially as it folds in a half. Makes it easy to store under a car/truck seat. Haven’t had any problem with it, great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

recommand products