Reinsulated an exterior wall in shower. I had some faced insulation to use up so put it in the wall with the paper to the outside, no staples or tape. I have 6 mil plastic for interior vapor barrier. Will the facing trap too much moister? There’s no tyvek on the exterior with gaps in the sheeting and vynal siding. I’m in cold weather state of wisconsin.


We don't use plastic sheeting for vapor barrier (on warm side of wall) anymore. We've learned that moisture (vapor) will get past the plastic sheeting (I.e.: around outlets, switches, vents, etc.) and then not be able to "move" back out of the wall. Then, that creates rot.

Also, the paper vapor barrier needs to be moved to the warm side of the wall.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.