Products / Polyglass Polytherm G

Polytherm G is a rigid polyisocyanurate roof insulation board with a closed-cell foam core laminated to inorganic coated glass facers, made to accept direct application of ADESO self-adhered membranes in most project conditions. It can be mechanically fastened, set in specialized adhesives or set in hot asphalt, and comes in flat and tapered panels. The data sheet lists thicknesses from 1.0 to 4.0 in with LTTR values from 5.7 to 23.6, and ASTM C1289 Type II Class 2, CAN/ULC-S704, FM Approved, Miami-Dade County approval and Florida Building Code, with Class A noted for various roof assemblies. Its product disclaimer warrants against manufacturing defects that directly result in leakage for 1 year.