Can you use a vapour retarder paint on the ceiling instead of using a poly vapour barrier?

Anwas Qwelten
Updated: Aug. 3, 2020

I saw in your wall video that you advise to use a 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?

Responses (2)

Anwas Qwelten 4 years ago