EverGuard Extreme® TPO Utility Flashing Membrane offers roofing contractors with an easy-to-install factory-built detail. EverGuard Extreme® TPO Utility Flashing Membrane is constructed using GAF's proven, durable, high-performance EverGuard Extreme® TPO. This accessory is used to strip-in coated metal flanges and at areas that require a reinforced membrane for flashing. This Cost effective Reliability is built in and made with GAF EverGuard Extreme® TPO membrane and Improved reliability Factory-built accessories that reduce risk of callbacks and leaks. The membrane is EverGuard Extreme® TPO reinforced, so it's durable and versatile.