Can I use "in wall vent" instead of thru roof for shower?

hawksnest · May 17, 2006

I've used an in-wall type vent (air valve) for a toilet before instead of venting through the roof. Would it work for a shower?

Thanks in advance for your advice.

Cass · May 17, 2006

There is no "in wall" vent that I know of. There is a vent called an AAV (air admitance valve) that can be used but yuo can not put it in a wall.

Sponsor · 2022-01-29T12:20:58-0800

hj · May 17, 2006

vent

And at least one vent pipe has to be extended through the roof. You cannot use all AAV's.

Sluggo · May 4, 2014

Cass said:
There is no "in wall" vent that I know of. There is a vent called an AAV (air admitance valve) that can be used but yuo can not put it in a wall.

Oatey, for one, has a wall box with a louvered grate so that you can install it in the wall.

Terry · May 4, 2014

That kind of makes it not sealed up in a wall. This is a box for the wall that has access for replacement, and allows air to get to the AAV.

Can I use "in wall vent" instead of thru roof for shower?

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