Extending Roof Vent Pipe

All open vent pipes that extend through a roof shall be terminated at least number inches mm above the roof 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.

Extending roof vent pipe.

Additionally vent pipes must be at least 305 mm 12 in away from a vertical surface. How to extend pvc pipe on a roof vent. Vent pipes should extend to outdoors above the building roof and should terminate vertically not less than 6 above the roof surface nor more than 24 and must be at least 12 from any vertical surface such as a nearby sidewall. Above the roof plumbing vent height.

Pvc schedule 40 pipe is used to vent waste lines for toilets and drain lines for sinks and washing machines. Vents in these locations also should extend 610 mm 24 in above a roof. Other vent pipes that are smaller may connect to this full sized vent and that s perfectly fine. The vent pipes are part of the drain waste vent or dwv system of a house or building and they do not carry water inside them.

What is a plumbing vent. Vents provide the necessary exchange of air so. A full sized vent is a primary vent where the drain line transitions at some point and becomes the vent pipe that exits the roof. Upc i 906 1 and 906 2.

Instead they serve to equalize air pressure within the dwv system and also release sewer gases into the outdoor air as all vent pipes terminate through the roof. Just as drain pipes remove water and waste from your home the plumbing vent pipe also known as a plumbing air vent removes gas and odors it also allows fresh air into the plumbing system to help water flow smoothly through the drain pipes however no water. Most building codes require a minimum clearance. This video illustrates a simple fix to extending the soil pipe on a roof.

In many an older home this drain pipe is perhaps 4 inches in diameter and stays that size all the way through the roof. All open vent pipes that extend through a roof shall be terminated at least number typically 6 inches mm above the roof 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.