Precision molded to fit actual pipe sizes, integral mechanical lock to cover with Weather-Tite Pressure Seal, allows flexibility in any direction while maintaining pipe seal. Number 1 is a plumbing stack vent. It has a finish coating that will help it resist corrosion. RPS Curbs The sure way of attaching roof flashing. Log In Forgot your password? These galvanized steel vents were all installed at the same time, but only the combustion vent is staining the roof.
Numbers 1 and 2 are both plumbing stack vents.
Pipe Portal Systems
This often but not always means that the vent should follow the " Rule" required by building code regulations for chimney terminations. Number 1 is a plumbing stack vent. This can be caused by a vent that:. Number 7 is the furnace exhaust. The Rule states that combustion vents should terminate at least 2 feet above any part of the roof within 10 feet. This series covers roof framing, roofing materials, the attic, and the conditions that affect the roofing materials and components, including wind and hail. The ruffled storm collar indicates that this is a double-wall vent.