PVC material suppliers and product manufacturers in the building industry have been trying to clean up their environmental footprint, and they're now pushing to improve the network to recycle vinyl products.
The Vinyl Sustainability Council (VSC) recently recognized Azek Co., for increasing the use of recycled materials in its capped PVC deck boards in the TimberTech product line, and Sika Sarnafil, a subsidiary of Sika AG, for using recycled content in two brands of its single-ply roofing products.
Chicago-based Azek boosted the composition of total board weight from 30 percent to 63 percent recycled content with almost half of the material coming from external post-industrial and post-consumer sources. The company says it diverted about 300 million pounds of waste from landfills in 2019.
Azek's research and development team worked with recycled PVC suppliers and its subsidiary, Return Polymers, to increase the recycled material composition.
"To accomplish this, it takes reimagining current products to find ways to make them better. As we all know, sustainability is a journey, and we will continue to push the boundaries of our recycling capabilities and innovations," Bruce Stanhope, Azek vice president of research and development, said in a news release.
With estimated annual sales of $515 million, Azek ranks No. 8 among North American pipe, profile and tubing extruders, according to Plastics News' latest ranking.
VSC also put a spotlight on Canton, Mass.-based Sika Sarnafil for its role in repairing the roof of the Rogers Centre in Toronto. The stadium's 30-year old Sarnafil PVC roof was still performing well, but the building had suffered structural damage from massive chunks of ice falling from neighboring office towers.
The manufacturer's ability to recycle the existing PVC roof was a driving factor in the building owner's decisions to replace it, according to Bill Bellico, Sika Sarnafil's director of marketing,.
"We were able to completely recycle the 460,000-square-foot roof membrane and put it back into new Sika roofing products. It is satisfying to see our 30-year-old Sarnafil roof come full circle and get a new life as a roof membrane that will protect another building," Bellico said in the release.
The new PVC roof also contains some recycled content certified by Underwriter Laboratories, which the release says should help protect the stadium for more than 30 years.