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%

Pay in installments of $128.31 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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

4.5 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
LJM
Lake Worth, US
★★★★★ 5
such a good read
Format: Kindle
Madison, Lucas, Grey and Rian were made for each other!!! First time reading from this author and I’m not disappointed!!! Absolutely love the Love in this book and couldn’t ask for a better OV!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2023
B
Verified Purchase
Beccaroo
Boise, US
★★★★★ 4
Fluffy and Nice Omegaverse
Format: Kindle
… this would have made 5 stars but for 2 reasons. A.) there were quite a few typos; misspelled words, missing quotations, “the his” mistakes, and various signs that maybe a proofread would do good. B.) the writing was quite textbook. Late blooming omega is struggling with her new self, finds a absurdly wealthy pack of alphas, every thing is almost insta-love but she resists, then decides to love herself and let everyone be happy. Rian was my favourite (obviously the author’s favourite too because he got the most page time) but I wish we could see more of his CEO side? He went to work maybe ONCE the entire time. Gray was supposed to be the “growly one” but he turned out to be puppy dog. Lucas was a genius brainiac doctor - but also super alpha with an aggressive hindbrain with a breeding k*nk?? And then there was no actual “breeding”?? Spice 3/5 - normally omegaverse books are super high on messy smut but this was tamer. Romance 3/5 - insta-love that was then resisted because of personal hangup’s Plot 2/5 - weird paced head hopping, showing the same scene from different POV’s that made me feel like it was 2 steps backward, 1 step forward. Humour 4/5 - there were a dozen lines that genuinely made me chuckle out loud Would have been five stars but the lack of proofreading and the predictable plot made me unable to get up to ADORED IT level - four stars is still and official ENJOYED IT, y’all. This isn’t a bad rating. The “Club Heat” has intriguing possibilities so I’m going to give the second one a shot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2023
A
Verified Purchase
Amanda
Bozeman, US
★★★★★ 5
A good read
Format: Kindle
A good read, just fluffy cuteness, no antagonism. I like all the characters. It could have used another round of editing however, glanfds being one error that cracked me up, and my personal pet peeve was that the author kept using the word fill instead of feel, which I promise you are not interchangeable haha, but it's definitely better than the majority of books I read on here mistake-wise.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2024
C
Verified Purchase
Cecy Melero
Grantham, US
★★★★★ 4
amazing
Format: Kindle
Knot the Bride was a fantastic read! The characters were all amazing and well-developed. It was easy to like them all. Sophia, Luca, Nick, and Gavin were all perfect for each other. It was such a charming story that had me hooked the entire time. I did wish there were POVs from Luca, Nick, and Gavin but it was still an amazing book without it. I am excited to read the next book in the Willowside Omegaverse series! This is definitely a must-read for fans of omegaverse romance!. I received a free copy of this book and am voluntarily leaving a review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2025
T
Verified Purchase
Tara
Omaha, US
★★★★★ 3
3 Star Read,
Format: Kindle
This book wasn't bad, but wasn't my cup of tea. It's highly disappointing because the storyline is so original. There is no real conflict or resolution, so the entire thing feels flat. As a lover of omegaverse books, I know there is a ton of variety out there, and ov is really up to the author. But this one is weird. Omegas have multiple scent glands all over their bodies and go into week long heats every month. Alphas have knots in the middle of their shaft instead of the base, and the knot doesn't always swell, no explanation of when or why. It doesn't engage at all when the mouth is in play. I also didn't enjoy the author's writing style. Each paragraph is only 1 or 2 sentences long, and the entire book reads very stacato. The conversations are stiff and unnatural feeling. Everything is very repetitive, both in word choice and in thought. The same thing is repeated 3 or 4 times over a single page, multiple times over. I ended up doing so much skimming. The first 50% of the book is all slow burn, and the last 50% is almost straight mediocre spice. This wouldn't have been all bad if the grammar and spelling errors didn't start at the exact same time. Tongue is repeatedly misspelled in the middle of the spice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2024

recommand products