DuraVent FasNSeal Severe Weather Rain Cap: a roof vent cap for wind and sideways rain
The DuraVent FasNSeal Severe Weather Rain Cap is a 4 inch cap for a gas vent that ends above the roof. It is made for exposed spots where strong winds drive rain sideways and an ordinary cap can let weather into the vent. This cap belongs at the top of a roof vent, not on a vent coming through a wall. FasNSeal is DuraVent’s stainless steel vent for high efficiency gas boilers, furnaces, and water heaters, built to carry pressurized exhaust and its acidic condensate outside. It serves natural gas or propane appliances whose manufacturer calls for a special gas vent.
The vent’s height above the roof matters too. It must end at least 2 feet above the roof line and higher than any wall less than 8 feet away. A vent standing more than 6 feet above the roof needs extra support. Need a cap for ordinary weather instead? See the DuraVent FasNSeal Rain Cap for ordinary weather. The DuraVent FasNSeal Severe Weather Rain Cap ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








Commercial projects may require custom parts and unique system designs. Duravent offers complete project assistance:








































