InsulBase is a rigid-roof insulation panel composed of a closed-cell polyisocyanurate foam core bonded on each side to glass-reinforced felt (GRF).
ASTM C1289, Type II, Class 1, Grade 2
International Building Code (IBC) Section 2603
FM Standards 4450/4470: Class 1 Approval
California Code of Regulations, Title 24
PIMA Quality Mark Approved
CAN/ULC S704, Type 2 & 3, Class 3
Florida Building Code Approved