Atlas ACFoam-III is a premium polyiso roof insulation board with CGF on both faces, designed for low-slope commercial roofs. It blends top-tier thermal performance with moisture resistance, making it a dependable choice for energy-efficient buildings—and yes, it won’t make your roof cry during a rainstorm.

Key Features & Design

• Coated glass facers on both sides enhance fire resistance and dimensional stability.
• High thermal efficiency with a low environmental impact for dependable energy performance.
• Lightweight and easy to handle to simplify installation and reduce on-site labor.
• Compatible with BUR, modified bitumen, and single-ply roofing systems for flexible, proven assemblies.
• Supports energy code compliance and LEED goals for sustainable buildings.
• Standard 4 ft x 8 ft panels with multiple thickness options to meet project specs.

Product Specifications

• Core material: Polyiso with CGF-coated glass facers on both faces
• Thickness & R-values (per sheet):
  • 1" — R-5.7
  • 1.5" — R-8.6
  • 2" — R-11.4
  • 2.5" — R-14.4
  • 3" — R-17.4
  • 3.5" — R-20.5
  • 4" — R-23.6
• Pallet quantities (per thickness):
  • 1" thickness — 48 sheets / 1,536 sq ft per pallet
  • 1.5" thickness — 32 sheets / 1,024 sq ft per pallet
  • 2" thickness — 24 sheets / 768 sq ft per pallet
  • 2.5" thickness — 19 sheets / 608 sq ft per pallet
  • 3" thickness — 16 sheets / 512 sq ft per pallet
  • 3.5" thickness — 13 sheets / 416 sq ft per pallet
  • 4" thickness — 12 sheets / 384 sq ft per pallet
• Compliance & Approvals: Conforms to ASTM C1289, Type II, Class 2; FM Approved; UL Classified; Miami-Dade Approved
• Certifications: Contributes to LEED certification
• Manufacturing: Made in the USA under strict quality standards