Recently I removed an old water heater stovepipe coming through my roof, because we moved our water heater. Right next to it was my plumbing vent pipe that I thought was associated with venting for the water heater, so I cut it off below the roof and patched my roof. So now my plumbing vent pipe terminates in my attic, in a little corner to be exact. How bad is this? I did it a week and a half ago and I never noticed any bad smells.
Plumbing Ventilation – Should a Drain Vent Terminating in the Attic Be Extended?
plumbingroofing
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Best Answer
Bad. Not only are you introducing stink and moisture to your attic, but toxic and potentially explosive gases as well.
Fix it now.