Atlas ACFoam-II 2 in. x 4 ft. x 8 ft. Polyiso Roof Insulation Board

Atlas ACFoam-II 2 in. x 4 ft. x 8 ft. Polyiso Roof Insulation Board

Regular price $1,026.43

/
Shipping calculated at checkout.

2" x 4' x 8' Polyiso Roof Insulation Board

Closed-cell polyisocyanurate roof insulation with fiber-reinforced organic felt facers for superior thermal performance. This ACFoam-II board in a 2-inch thickness delivers long-term thermal resistance in low-slope roofing systems and meets leading industry standards.


Key Features:

  • High Thermal Efficiency: Closed-cell polyiso core delivers long-term thermal resistance (LTTR)
  • Durable Facers: Non-asphaltic, fiber‑reinforced organic felt facers enhance strength and compatibility
  • Code Compliant: Meets ASTM C1289 and multiple UL, FM, and building code approvals
  • Versatile Use: Ideal for low-slope commercial roofing assemblies; 2 in. x 4 ft. x 8 ft. board
  • Lightweight Handling: Approximately 15 lb per sheet for easier transport and installation

Specifications Table:

Specification Details
Product Name 2" x 4' x 8' Polyiso Roof Insulation
Brand Atlas
Product Line ACFoam-II
Dimensions 2 in. x 4 ft. x 8 ft. (50.8 mm x 1220 mm x 2440 mm)
Thickness 2" (50.8 mm)
Width 4' (1220 mm)
Length 8' (2440 mm)
Core Material Closed-cell polyisocyanurate (polyiso)
Facers Non-asphaltic, fiber-reinforced organic felt facers
Approximate Weight 15 lb per sheet
Area Coverage 768 sq. ft. per unit
Style Polyiso
Applicable Standards and 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
Manufacturer Number AC2_029
Seller Product Number ATL2ISO

Frequently Asked Questions (FAQ):

Q: What are the board dimensions and thickness?
A: Each board is 2 inches thick and measures 4 feet by 8 feet.


Q: What facers are used on this insulation?
A: Non-asphaltic, fiber-reinforced organic felt facers are integrally bonded to the polyiso core.


Q: Which standards and approvals does it meet?
A: ASTM C1289, CAN/ULC-S704, multiple UL standards, FM 4450/4470, Miami-Dade and Florida approvals, among others.


Q: How much does one sheet weigh?
A: Approximately 15 pounds per sheet.


Q: What is the product line?
A: Atlas ACFoam-II polyiso roof insulation.


Sleek Thermal Armor for Modern Rooflines

This polyiso panel brings a refined, purposeful minimalism to the building envelope, streamlining the roof with crisp geometry and quiet confidence. The fiber-reinforced felt facer offers a tailored, matte surface that feels both engineered and elegant. Layer it beneath single-ply membranes or built-up systems to create a thermally resilient canvas that elevates performance without visual noise. It’s an essential foundation for luxurious, efficient architecture.


Upgrade your roof assembly with Atlas ACFoam-II for lightweight handling, proven code compliance, and long-term thermal performance—add it to your project today.

*Third Party Trademarks

All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.

Why choose us

The Arbor Way

• Lowest Prices. Easy Online Shopping. Fast Delivery.

• No lines. No holds. No Hassles.

• America's Largest Inventory Network for All Home Improvement Supplies Nationwide.

• We deliver - town to town, door to door. 


Recently viewed

\