The FlashCap is a roof flashing specifically designed for plumbing vent pipes. FlashCap is a 2 piece system, the flashing and the cap. Flashings are used to "flash" or waterproof penetrations on roofs effectively tying the flashing into the roofing system. The cap in FlashCap, a counter flashing that fits inside the vent pipe and over the flashing, takes this one step further and protects 100% of the exposed plumbing vent pipe from harmful UV rays at the same time offers a watertight seal. FlashCo® manufactures standard FlashCap® boots and flashings using a reinforced TPO and PVC single ply membrane and various metals such as Lead, and Copper. The single-ply and lead caps are seamless completely eliminating the need for additional time, such as adding a hose clamp or bending the material into the vent. The water intrusion concern is eliminated with FlashCap®.