Widespread use of thermoplastics began in the 1980s with the proliferation of single-ply roof systems, and they account for approximately 20 percent (on average) of the overall roofing market.
Widespread use of thermoplastics began in the 1980s with the proliferation of single-ply roof systems, and they typically account for approximately 20 percent (on average) of the overall roofing market. Current industry statistics indicate that PVC and PVC blends have approximately 12 percent of the market share and TPOs, the most recent thermoplastic entry, make up 8 percent.
There are three common types of PVC sheets in the United States: sheets with polyester fabric reinforcement; sheets with non-woven fiberglass mat reinforcement; and sheets without reinforcing materials.