Vapour barrier / 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 get rid of moisture with cement floor crawl space that has a vapour barrier?

...vapour barrier is wet on one side, that just means it’s doing its job. If you have a crawl space with a vapour barrier and a dehumidifier it should be pretty ...

Posted by Cindy Chatham 04 chatham Aug. 25, 2020, 4:47 p.m. Crawl spaces 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?

...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 p...

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

How would I rectifiy problem of foundation wall cracks with finished basement?

...vapour barrier on the inside basement walls. If the walls were removed (including tar paper, insulation, vapour barrier and drywall) would this be the best solu...

Posted by Terry P July 22, 2020, 7:07 p.m. Basements improvements 3 Responses

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

...vapour barrier on the outside of a building, so hold that thought. Not having an interior vapour barrier can be rectified, but creating an air barrier after the...

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

Where should I put a vapour retarder?

...vapour retarder and two-thirds outside. Would it make sense to put up one layer of insulation before wrapping with vapour barrier, and then two (or three) more ...

Posted by Jeffrey Connell March 14, 2020, 4:25 p.m. Wall assemblies - new construction 4 Responses

Can you help with passive solar greenhouse exterior wall details?

...vapour barrier, or let the wall breath (high humidity inside). Location and type of vapour barrier. 3) best rigid insulation type to create a thermal break / ...

Posted by Rick Carter Aug. 11, 2020, 8:06 a.m. Greenhouses and Sunrooms / Solariums 1 Responses

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

...vapour control. Nothing is truly ‘waterproof’, even a 6 mil polyethylene barrier will allow some moisture through. So the term ‘vapour barrier’ is a little misl...

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

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

...vapour barrier afterwards/ that would actually be a bit better. There was usually a poly vapour barrier installed after the insulation and stud wall seemingly t...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

...barriers - Choosing a weather barrier house wrap, which is best? This page explains air / vapor barriers - The difference between air barriers and vapor barri...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

Can you spray foam a house from the outside?

...vapour build up if we have a mix of plaster and lathe in the older parts of the house, with fiberglass and interior vapour barrier in the new parts? Yes you cou...

Posted by Joan Lawrence July 11, 2019, 7:17 p.m. Wall assemblies - renovation 3 Responses

I want to insulate the outside of my house, which type of insulation do you think is best?

...vapour barrier, some are not. Some are air barriers, some are not. XPS foam insulation at about 1 inch thick will act as a vapour barrier, EPS foam insulation w...

Posted by J. Ferguson Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses

How do you prevent walls from rotting in humid climates?

...Vapour barrier have had mould show up in less than 2 years on his north wall. How can we avoid getting mould? If your neighbour had their walls rot that could b...

Posted by Rose Alderson Nov. 5, 2018, 4:34 p.m. Wall assemblies - new construction 1 Responses

What type of Insulation can I use on the exterior of my home?

...vapour barrier. XPS has a nice R value per inch, but again, if you refer to that page on rigid board insulation above you'll see that it's also a vapour barri...

Posted by Scott Muller April 18, 2019, 2:19 p.m. Wall assemblies - renovation 6 Responses

What is the best way to Insulate the crawl space of an old home?

...vapour barrier and what to do around vents and plumping pipes when installing. There are a couple of ways to insulate the crawl space of an old home, either you...

Posted by Aj Jan. 21, 2020, 8:13 a.m. Crawl spaces 1 Responses

How do you insulate a cathedral ceiling?

...vapour barrier first, then the rest of the cavity will be filled with dense pack cellulose insulation, with an intello vapour barrier holding cellulose all in. ...

Posted by Raoul Lions Oct. 19, 2019, 8:07 a.m. Roof assemblies - new construction 1 Responses

How do you fix a moisture problem in a finished basement?

...vapour barrier, so you wouldn’t need to apply a typical 6 mil polyethylene vapour barrier on the wall after the foam (though in some areas building inspectors m...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 Responses