Can you use a vapour retarder paint on the ceiling instead of using a poly vapour barrier?
...vapour retarder paint along with an outside air barrier. Can you do this for the ceiling as well, thereby taking out that possible weak spot where the vapour barrier joins in with your walls? Vapour barrier paint (or Vapor barrier paint in the U.S. ) is more of a solution for walls rather than ceilings to prevent the ...