SKU: 41526431043

Atlas ACFoam-III Tapered Polyiso Roof Insulation, 4 ft x 4 ft Panel, 1 in to 1-1/2 in Thickness

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Description

Atlas ACFoam-III Tapered Polyiso Roof Insulation, 4 ft x 4 ft Panel, 1 in to 1-1/2 in ThicknessTapered Polyiso Roof Insulation Panel, 4'x4', 1"1 1 2" Closed cell polyisocyanurate roof insulation with inorganic coated glass facers. This tapered ACFoam III panel promotes positive drainage while delivering long term thermal resistance for low slope roofing systems. Key Features: Tapered Design: Helps achieve positive roof drainage to reduce ponding water High Thermal Performance: Polyiso core provides strong LTTR for energy efficiency Durable

Tapered Polyiso Roof Insulation Panel, 4'x4', 1"–1-1/2"

Closed-cell polyisocyanurate roof insulation with inorganic coated glass facers. This tapered ACFoam-III panel promotes positive drainage while delivering long-term thermal resistance for low-slope roofing systems.


Key Features:

  • Tapered Design: Helps achieve positive roof drainage to reduce ponding water
  • High Thermal Performance: Polyiso core provides strong LTTR for energy efficiency
  • Durable Facers: Inorganic coated glass facers resist moisture and provide dimensional stability
  • Convenient Panel Size: 4 ft x 4 ft panel with 1 in to 1-1/2 in taper for layout flexibility
  • Code Compliance: Meets key standards including ASTM C1289 and multiple UL/FM approvals

Specifications Table:

Specification Details
Brand Atlas
Product name A (1" to 1-1/2") Tapered 4' x 4' Polyiso Roof Insulation
Core material Closed-cell polyisocyanurate (polyiso)
Facers Inorganic coated glass facers
Panel size 4 ft x 4 ft (1220 mm x 1220 mm)
Thickness range 1 in to 1-1/2 in (25.4 mm to 38 mm)
Type ACFoam-III tapered
Area per unit 608 sq. ft. per unit
Item weight 5.28 lb
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 Approved; 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
Manufacturer number TP2_009
Material number 12667

Frequently Asked Questions (FAQ):

Q: What are the panel dimensions and thickness range?
A: Each panel measures 4 ft x 4 ft and is tapered from 1 inch to 1-1/2 inches.


Q: What is the core material?
A: A closed-cell polyisocyanurate (polyiso) foam core integrally bonded to coated glass facers.


Q: Where is this product typically used?
A: Designed for low-slope roof systems where tapered insulation is needed to create positive drainage.


Q: Does it meet building codes and certifications?
A: Yes. It complies with ASTM C1289 and carries various UL, FM, Miami-Dade, and Florida Product Approvals, among others.


Q: How much area does a unit cover?
A: 608 square feet per unit, per the product data provided.


Sculpted Insulation for Sleek, Efficient Rooflines

This tapered polyiso panel refines the roof plane with quiet precision, directing water away while preserving a clean architectural silhouette. The coated glass facer offers a crisp, tailored surface that supports a disciplined roofing assembly. Pair it with dark membrane finishes to emphasize linear drainage patterns and a modern profile. It’s a discreet yet essential layer for a polished, high-performance building envelope.


Elevate your roofing performance and drainage—choose Atlas ACFoam-III Tapered 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: 41526431043

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wendy rhines
Port Orchard, US
★★★★★ 5
Great Quality
Great quality and fit as expected.
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Reviewed in the United States on May 17, 2025
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FrankieJay
Bozeman, US
★★★★★ 5
Buy small and not big
The product was definitely an awesome product I wore the pants one time realize that I got a Size 52 I should have got a size 50 they are a little too big on me. I probably pass them on to a friend that's a little bit bigger than me and I need to lose 100 lb so and then all my other jeans will fit me but I will not have a problem buying any type of jeans from this company. I really enjoyed the product and I know I'll be buying smaller sizes in the future
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Reviewed in the United States on August 14, 2017
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Kindle Customer
Birmingham, US
★★★★★ 5
Big mans stretch jeans
Fit Type: Relaxed, Color: Black, Size: 64W x 28L
Son is in the nursing home and wheel chair bound. Wants to feel normal and these will help
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Reviewed in the United States on October 25, 2025
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christopher ganger
Draper, US
★★★★★ 1
retruns not free despite being labelled as such.
waist fine. length...rediculously long, thigh and calf stupidly narrow for larger sizes. also, despit it claiming that it offers free returns, they evidently charge something like $4? i dont know yet as they dont say exactly how much, but rather that it will be deducted from the refund. very deceptive.
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Reviewed in the United States on December 29, 2022
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Mr. lewis
Dallas, US
★★★★★ 4
Everything was as expected
Fit Type: Relaxed, Color: Antique Indigo, Size: 52W x 28L
Product quality was good and delivered as expected. Very satisfied.
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Reviewed in the United States on July 3, 2020

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