Vent Pipe Height Above Roof

Many people mistakenly think that the pipe always has to be 2 feet above the roof peak.

Vent pipe height above roof.

Vent pipes shall be extended separately or combined of full required size not less than 6 inches 152 mm above the roof or fire wall. From any vertical surface the soil pipe also known as the vent stack or stack pipe provides air for the plumbing system. A note on the main drain. However it needs to be at least six inches above your fixture s flood level to keep from getting wet.

We install our roof vents 6 to 8 inches above the roof line. Above the roof nor less than one 1 foot. All open vent pipes that extend through a roof shall be terminated at least 6 inches 152 mm above the roof and not less than 2 inches 51 mm above the invert of the emergency overflow except that where a roof is to be used for any purpose other than weather protection the vent extensions shall be run at least 7 feet 2134 mm above the roof. According to the uniform plumbing code the soil pipe or stack pipe shall extend vertically not less than six 6 inches.

Single wall metal pipe shall extend at least 2 feet 610 mm above the highest point where it passes through a roof of a building and at least 2 feet 610 mm higher than any portion of a building within a horizontal distance of 10 feet 3048 mm. For those stinky vents consider installing odor hog vent caps see image on the roof vents. You are close to your eave and you find that your measurement is 18 feet from peak to penetration on a 4 12 pitch see figure 3. Single wall metal pipe shall terminate at least 5 feet 1524 mm in vertical height above the highest connected equipment draft hood outlet or flue collar.

Let s look at a couple of examples. Upc i 906 1 and 906 2. Flagpoling of vents shall be prohibited except where the roof is used for assembly purposes or parking. The re vent is the only exception since it runs horizontally.

This may seem suitable since the only purpose for the stack is to provide air and expel sewer gases. Above the roof plumbing vent height.