Historical: Polyvinyl Chloride Membrane Roofing
This information reflects our best understanding of product composition in 2015.
Polyvinyl chloride (PVC) membrane roofing is made up of two layers of flexible PVC surrounding a woven polyester (PET) reinforcing layer, or scrim. Flexible PVC is made up of a variety of additives including plasticizers, pigments, flame...
Polyvinyl chloride (PVC) membrane roofing is made up of two layers of flexible PVC surrounding a woven polyester (PET) reinforcing layer, or scrim. Flexible PVC is made up of a variety of additives including plasticizers, pigments, flame retardants, biocides, fillers and thermal and ultraviolet stabilizers. PVC Roofing membranes are typically sold in thickness of 45, 50, 60, and 80 mil sheets. PVC roofing membranes may include up to 10% recycled content, depending upon the manufacturer, from post industrial scrap. Roofing membranes are sold in rolls which are applied via mechanical fasteners, site or factory applied adhesives, or loose laid with gravel. Membrane seams are heat welded. This CP does not include installation products such as fasteners or adhesives, but characterizes the roofing membrane alone.
A more up-to-date Common Product is available here: https://pharos.habitablefuture.org/common-products/2079119