How High Should A Vent Pipe Be Above The Roof

So take the top number of your roof pitch and multiply it by 10 then add 24 note example 1.

How high should a vent pipe be above the roof.

The vent pipes must have a slope to drain condensation water revised february 2018. Vent pipes allow air into the plumbing system. Plumbing vent pipe is very important and supplies air from the atmosphere into the drain pipes. Each fixture needs to be vented properly.

Plumbing vent pipe tips. 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. 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. The top of the chimney should be at least 3 ft 0 92 m above the roof surface. The slope is about 4 high for every 12 horizontal. 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.

This specification makes sure steep roof slopes are cleared. If running the pipe along side a window the exhaust point must be 2 above it and 12 above the eve too. You can use a 1 story roof like a garage roof on a one story home. Watch my vent piping video below.

If the pipe is farther than 10 feet from the roof. This may seem suitable since the only purpose for the stack is to provide air and expel sewer gases. The top of a chimney pipe must extend at least 2 feet above the peak of the roof if the pipe is within 10 feet of the peak. Vertical blue line along the left side of the chimney in our photo.

I have a main vent and a sink vent and both are only 6 high above the roof. Depending on your region the vent stack may protrude only a few inches above the surface of the roof.