Dryer vent code clarification
July 5, 2019 12:44 PM Subscribe
I have a question about dryer vent exhaust termination as it relates to the International Residential Code (IRC). Exciting details inside.
The IRC, which I'm referencing from this link (Section M1502.3), specifies that a clothes dryer exhaust should terminate "outside the building... not less than 3 feet in any direction from openings into buildings."
When exiting through a roof, does an "opening" as defined above include plumbing vent pipes like this? Or does it refer just to windows, doors, and other entrances where a homeowner would attempt to introduce fresh air into a home?
The IRC, which I'm referencing from this link (Section M1502.3), specifies that a clothes dryer exhaust should terminate "outside the building... not less than 3 feet in any direction from openings into buildings."
When exiting through a roof, does an "opening" as defined above include plumbing vent pipes like this? Or does it refer just to windows, doors, and other entrances where a homeowner would attempt to introduce fresh air into a home?
Agreed. Plumbing vents never "open into the building".
posted by humboldt32 at 2:14 PM on July 5, 2019 [2 favorites]
posted by humboldt32 at 2:14 PM on July 5, 2019 [2 favorites]
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It's this. The idea is to let exhaust gasses/odors disperse. Plumbing vents should only exhaust - and in any case should be sealed off from the living space by traps or one-way valves.
posted by Pogo_Fuzzybutt at 12:57 PM on July 5, 2019 [3 favorites]