Fire Performance

Fire protection

In the case of vinyl products, fire resistance is built into the polymer. Polyvinyl chloride (vinyl or PVC) is formed when chlorine combines with hydrogen and carbon. The chlorine component of the vinyl polymer makes it naturally fire retardant – a distinction between it and all other plastics. Finished vinyl products don’t emit chlorine either.


Vinyl (PVC) roofing membranes are also inherently fire resistant, being slow to catch or spread fire and self-extinguishing when the source of heat or flame is removed. PVC roofs have passed both FM and UL fire testing. This fire resistance is part of vinyl roofing’s overall durability. Also, its heat-welded seams form a permanent, watertight bond that is a major advantage over commercial roofing systems that rely on adhesives, tapes, and caulks to seal the seams. It meets or exceeds wind uplift requirements, with many PVC membranes surviving the onslaught of hurricanes.