ACFoam-II Grade-II Polyiso Roof Insulation Board (1.5 in, 4x8)
Closed-cell polyisocyanurate foam board with fiber-reinforced organic felt facers for durable, high-performance roof insulation. This Grade-II board delivers long-term thermal resistance and 20 psi compressive strength for commercial and residential roofing systems.
Key Features:
- Durable Facers: Non-asphaltic, fiber-reinforced organic felt facers integrally bonded to the foam core
- High Compressive Strength: Grade-II board rated at 20 psi for robust roof assemblies
- Thermal Performance: Delivers long-term thermal resistance (LTTR) for energy efficiency
- Industry Approvals: Meets major standards including ASTM C1289, UL certifications, FM approvals, and Miami-Dade/Florida Product Approval
- Lightweight 4x8 Panel: 1.5 in thickness for easy handling and installation on large roof areas
Specifications Table:
| Specification | Details |
| Product name | ACFoam-II Grade-II Polyiso GRF Roof Insulation |
| Thickness | 1.5 in (38.1 mm) |
| Panel size | 4 ft x 8 ft (1220 mm x 2440 mm) |
| Compressive strength | 20 psi (Grade-II) |
| Core | Closed-cell polyisocyanurate (polyiso) foam |
| Facers | Non-asphaltic, fiber-reinforced organic felt (GRF) |
| 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 |
| Length | 8 ft (2440 mm) |
| Width | 4 ft (1220 mm) |
| Unit of measure | SQ | PLT | PC |
| Item weight | 12 lb |
| Area per unit | 1024 sq. ft. per unit |
| Manufacturer number | AC2_016 |
| Product number | ATL15ISO |
| Style | Polyiso |
Frequently Asked Questions (FAQ):
Q: Can this board be used as a cover board or thermal layer in roof assemblies?
A: Yes, it is designed for use as roof insulation in single-ply and built-up systems; follow project specifications and approval listings.
Q: What is the compressive strength rating?
A: Grade-II boards are rated at 20 psi.
Q: Are there environmental certifications?
A: Yes, UL Greenguard Gold certification and an Environmental Product Declaration (EPD) are available.
Q: What sizes are available?
A: This variant is 1.5 in thick and 4 ft x 8 ft; ACFoam-II is offered in various thicknesses.
Q: Does it meet building code requirements?
A: It aligns with IBC Chapter 26 and related approvals including Miami-Dade and Florida Product Approval; verify local code compliance.
Streamlined Strength for Modern Roofscapes
This polyiso board introduces a clean, minimal profile that elevates the roof plane with quiet sophistication. The fiber-reinforced facer adds a tailored, textural edge while preserving sleek lines. Pair it with a high-contrast membrane and crisp metal trims to craft a contemporary silhouette. A refined essential, it anchors luxurious envelopes with performance and poise.
Choose Atlas ACFoam-II to boost roof performance with proven strength, efficiency, and code-ready approvals.
Warranty
