What is the proper location of a vapor barrier in a home in New York State?
I read a couple of articles regarding vapor barriers and insulation. I live in update NY, our home was constructed in 1952. We are adding a full shed dormer with 2x6 walls and 2x12 rafters. Our plan is to use closed cell in the walls and ceiling - which will have a copper standing seam roof. Code requires a Tyvek t...