Meets the requirements of ASTM C 1289, Type II, Class 1, Grade 2. Closed Cell Polyisocyanurate Foam re: Provides high R-value per inch, light weight, and flexibility in rOkayver and metal retrofit applications. Glass-Reinforced Facers: Provides rigidity and resistance to indentation and cruHDPEng for mechanically fastened single ply membrane
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