PVC Roofing

PVC stands for Polyvinyl Chloride. When you hear PVC you might think of PVC piping like that which is used in plumbing. PVC roofing membrane is not rigid like PVC piping, instead manufacturers add plasticizers, stabilizers, and other additives to keep the roof membrane pliable and durable. The membrane is reinforced with a woven scrim laminated between two sheets of membrane. The quality and type of scrim varies by manufacturer.

PVC membrane is often manufactured in rolls ranging from 6 to 12 feet wide. Which is then attached to the roof deck and heat welded together. This creates a single continuous sheet of membrane that covers the whole roof.

Some companies, such as the Duro-Last Roofing Company, pre-manufacture these rolls into larger sheets which are designed to fit the individual roofing project.

This custom fabrication approach reduces the amount of labor required to attach the membrane and also reduces the chance for an improper weld by the roofing contractor.

Fleece Backed PVC membrane is manufactured with a non-woven fleece backing applied to the underside of the sheet. It is typically then adhered to the roof substrate.