PVC roofing membranes continue to be the leading product in both commercial and residential flat roofing market. To get a better sense of why PVC is a superior roofing system, besting its competitors in quality, durability, and longevity, it is important to know a brief history and evolution of PVC roofing membranes. PVC ROOFING MEMBRANE PVC, also commonly known as vinyl, is composed of two main components: ethylene and chlorine. Petroleum or natural gas is processed to produce ethylene, while chlorine is derived from salt. In the compounding process, vinyl resin is blended with plasticizers, heat-stabilizers, ultraviolet (UV) light inhibitors,… Read more »