I'm Re-doing the Bathroom and have been trying to Decide if I should rip all the drywall down and install mold resistance Drywall.
This is a Interior wall and all it has is 4Mil Vapor Barrier
This Wall goes to the Hallway
I have heard only the outside wall needs to be insulated but would anything be wrong with doing the interior walls too.
I'm up here in CDN with those Great -30 Winters
I just don't know if there are any (-) Effects to Insulating Inside walls or Should I just leave it.
If it won't hurt anything to Insulate the walls what R-Value Should I look at or would spray form be better