Atlas ACFoam-II is a high-performance, rigid polyisocyanurate (polyiso) foam insulation board designed for use in commercial flat roofing systems. Each board is fiber-reinforced felt-faced on both sides, offering excellent dimensional stability, strength, and durability. Ideal for use over steel, wood, or concrete decks, ACFoam-II enhances energy efficiency, helps meet R-value targets quickly, and supports various membrane systems. Its closed-cell structure also provides superior moisture resistance compared to traditional insulation materials. Key Features: High thermal performance with industry-leading R-values Fiber-reinforced felt facers on both sides Excellent moisture resistance and durability Compatible with multiple roof systems Made in the USA, meets ASTM C1289 UL, FM, Miami-Dade & ICC certified Thickness R-Value Sheets / Pallet Sq Ft / Pallet 1" R-5.7 48 768 sq ft 1.5" R-8.6 32 512 sq ft 2" R-11.4 24 384 sq ft 2.5" R-14.4 19 304 sq ft 3" R-17.4 16 256 sq ft 3.5" R-20.4 13 208 sq ft 4" R-23.6 12 192 sq ft Application:Designed for use in low-slope roofing systems including built-up (BUR), modified bitumen, single-ply (TPO, EPDM, PVC), and metal roof systems. Certifications & Standards: ASTM C1289 Type II, Class 1 FM Approved, UL Classified, Miami-Dade Approved Zero ozone-depleting blowing agents
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