Polyvinyl Chloride (PVC) is a trusted membrane that has been performing admirably for decades in the European market and in North America. Another option for reflective roofing, Carlisle’s Sure-Flex™ PVC membranes are ENERGY STAR®-rated and CRRC-certified, offering building owners the potential for decreased cooling costs. Sure-Flex PVC also offers excellent resistance to rooftop chemicals, including acids, oils and greases.