Atlas ACFoam-Supreme is a premium polyiso roof insulation board, foil-faced on both sides, delivering high thermal performance, moisture resistance, and durability. Designed for a wide range of low-slope commercial and residential roofing systems, it provides long-term energy efficiency while being lightweight and easy to install. Key Features Dual foil facers enhance thermal resistance and reflect radiant heat High R-value per inch for superior insulation performance Lightweight, rigid foam core simplifies handling and installation Compatible with multiple roof assemblies (BUR, mod-bit, single-ply) Can be installed in layers to meet custom thermal and slope design needs Thickness R-Value Board Size Sheets / Pallet Coverage / Pallet 1" R-5.7 4ft x 8ft 48 1536 sq ft 1.5" R-8.6 4ft x 8ft 32 1024 sq ft 2" R-11.4 4ft x 8ft 24 768 sq ft 2.5" R-14.4 4ft x 8ft 19 608 sq ft 3" R-17.4 4ft x 8ft 16 512 sq ft 3.5" R-20.5 4ft x 8ft 13 416 sq ft 4" R-23.6 4ft x 8ft 12 384 sq ft
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