atvalaska
Member
I have a 4" /vent stack coming thru my sole plate (2x8 construction) on a outside wall...that's the wrong place for any plumbing pipes imo, so I would like to bring it inside the envelope i'm thinking of letting it run up in the stud bay .(the pipe would be insulated from the back side with spray foam with the other side of the pipe running- just out side the vapor barrier/sheet rock),...... then bore a hole in the double top plate and turning it into the joist bay .??? I have 2x8 double top plates ...2x8 studs on 2' o,c's 16" bci's and 1 1/8 t&g flooring