The top of the chimney should be at least 3 ft 0 92 m above the roof surface.
How high should a vent pipe be above the roof.
If running the pipe along side a window the exhaust point must be 2 above it and 12 above the eve too.
Plumbing vent pipe tips.
Vent pipes allow air into the plumbing system.
The slope is about 4 high for every 12 horizontal.
Watch my vent piping video below.
The soil pipe also known as the vent stack or stack pipe provides air for the plumbing system.
A vent terminal and depending if the roof is strictly for weather protection it terminates about 24 above the roof.
Each fixture needs to be vented properly.
How high should the plumbing vents be above there roof.
This may seem suitable since the only purpose for the stack is to provide air and expel sewer gases.
For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m.
So take the top number of your roof pitch and multiply it by 10 then add 24 note example 1.
Plumbing vent pipe is very important and supplies air from the atmosphere into the drain pipes.
You can use a 1 story roof like a garage roof on a one story home.
This specification makes sure steep roof slopes are cleared.
But the pipe must be 10 away from any windows the overlook the vent.
If the roof area is for people then it is 7 ft above the roofing surface.
If the pipe is farther than 10 feet from the roof.
The vent pipes must have a slope to drain condensation water revised february 2018.
Vertical blue line along the left side of the chimney in our photo.
If your calculated required height falls below 36 inches 3 feet then as per our rule it must be a minimum of 3 feet on the high side of the pipe penetration.
I have a main vent and a sink vent and both are only 6 high above the roof.