Vapour retarder primer / Discussions

Does paint work instead of a poly vapour barrier?

...vapour barrier, several coats of paint, and specifically oil paint can make a suitable vapour barrier. You can even buy vapor barrier paint / vapor retarder pri...

Posted by Bill Fletcher May 6, 2020, 1:46 p.m. 1 Responses

How do I create a complete air barrier using a vapour retarding primer?

...vapour movement comes from the fact that usually one product (6-mil polyethylene) is used as both the vapour barrier AND air barrier, but air leakage and vapour...

Posted by Mihai Wilson May 3, 2018, 10:15 p.m. Wall assemblies - renovation 1 Responses

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 ba...

Posted by Anwas Qwelten June 8, 2019, 3:56 p.m. Air and vapour barriers 2 Responses

How do you install rigid insulation to the outside of a brick house"

...vapour diffusion becomes a bit more manageable. One option may be to apply vapour barrier paint / vapour retarder primer as we did on a demo house a few years a...

Posted by Gordon CASWELL Dec. 13, 2019, 11:38 a.m. Wall assemblies - renovation 1 Responses

How do you do a vapor barrier in a dense pack cellulose wall?

...vapour retarder primer instead of a traditional poly vapour barrier. That may not always fly with inspectors, so its always a good idea to get approval from you...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 4 Responses

Does using T & G wood plank instead of drywall affect where we put the vapor & air barrier?

...vapour barrier paint (or vapour retarder primer) check with an inspector ahead of time. As for the toxicity, We used Benjamin Moore vapor barrier paint which wa...

Posted by Sue Colbourne Nov. 9, 2019, 6:16 p.m. Walls and ceilings - interior surfaces 3 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

...retarder or just use latex paint ? Code doesn’t require any vapor retarder in my area. But I am also trying to avoid getting condensation on cold foundation wal...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses