Paratherm Rigid Insulation
Siplast Paratherm is a rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the foaming process to universal fiberglass reinforced facers. Paratherm provides high thermal insulation value over metal, nailable, and non-nailable roof decks in modified bitumen, built-up, and single-ply membrane roofing systems.
Paratherm is Factory Mutual Approved for Class 1 fire and windstorm constructions for use in specific Siplast roof assemblies. It has been classified by Underwriters Laboratories as a roof insulation in many Class A roof constructions and roof/ceiling hourly fire-rated assemblies.
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