DIY Home Improvement Forum banner
1 - 5 of 5 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
I have a one story ranch with two bathrooms that both need venting. They share a wall and I am wondering if I can get away with one exhaust vent for both fans. Does anyone know of any problems I might run into if I mate the exhaust for both fans in the attic and run them out one vent? Obviously a backflow prevention gate on each would be in order. Any other issues? I would like to avoid putting more holes in my roof than I have to.
 

·
Registered
Joined
·
9,025 Posts
It's common here. Most exhaust fans come with small gravity dampers, so you might not need any more. You'll need to increase at least one size for the common venting. Don't forget to insulate it, if your area gets cold weather.

It's legal here, but areas have different codes, so you'll still have to do some homework.

Cheers!
 

·
Registered
Joined
·
37,379 Posts
That idea would never fly here.
May want to run this one by your building dept.
Source of least resistance.
Turn on the fan in one room and some of the airs going to leak by the cheap flapper into the other bathroom.
Installing it right with there own vents might take a whole hour and done right is never going to leak.
 
1 - 5 of 5 Posts
Top