Products / SOPRA-ISO TAPERED

A tapered rigid polyisocyanurate roof insulation board for multi-ply membrane assemblies, made to promote positive drainage and prevent ponding water. It has a closed-cell foam core bonded during foaming to glass fiber-reinforced facers and may be set in hot asphalt or urethane adhesive or mechanically fastened. SOPREMA lists it to ASTM C1289 Type II Class 1 with GREENGUARD certification; the same page carries data sheets for TAPERED R and SOPRA-ISO S TAPERED versions.