Siplast is a US-based manufacturer of commercial roofing and waterproofing systems, specializing in SBS-modified bitumen membranes. Their product range includes Paradiene, Irex, and Parafor modified bitumen roof and waterproofing membranes, Paratherm NH polyiso roof insulation, lightweight Insulcel concrete decks, and vegetated (ZIC) and vented (NVS) roof system assemblies. Headquartered in Irving, Texas, Siplast is a Standard Industries company serving North American commercial construction.
