Plumbing vent in exterior wall?


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Old 05-19-17, 05:14 AM
S
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Plumbing vent in exterior wall?

Doing a bathroom reno. I need to move a plumbing vent pipe to an exterior wall. Is this a problem? What difficulties should I expect?
 
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Old 05-20-17, 02:38 PM
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There's no plumbing issue with a vent pipe in an exterior wall.

The issues you may run into are more structural. A 2" pipe is tight in a 2x4 wall, but doable. Once you get up to the roof, it's sometimes hard to get through the attic and up through the roof. It also can be a bit difficult to flash around a pipe right at the edge of the roof.
 
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Old 05-20-17, 03:03 PM
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The problem is I will be removing a partition with the existing plumbing vent pipe in it. It already is plumbed through the roof. My only real place to move it is to an exterior wall. I had planned to cut the pipe free, relocate it and reconnect the new pipe to the existing pipe in the attic through the roof.

My guess was my difficulties may be working the PVC through the exterior wall up through the plate because it would be pretty tight there. Just not sure.
 
 

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