Vapor barrier / Discussions

How do you fix radon and water infiltration in a dry stone foundation?

...vapor barrier on ground/walls, taping best able around mechanicals and piers - and adherred to the skim of mortar under the rim. Questions: 1) do you think an...

Posted by john flannery July 14, 2020, 4:24 p.m. Foundation and basement improvements 5 Responses

What is the best wall for a house by the sea in New Brunswick?

...vapor barrier. We would like to get expert advice, since this is a crucial part of the house and we need to get it right, especially since the weather conditi...

Posted by Nathalie Lacaille Jan. 6, 2021, 9:36 a.m. Wall assemblies - new construction 0 Responses

Have you excavated under one of your slabs middle of winter?

...vapor barrier. But I'm reluctant, because I think the chance of heave is still high and I won't have a rebar slab to ride it out up here in Iowa. The site sits ...

Posted by Mike Kolder Jan. 31, 2021, 2:31 p.m. Slab on Grade 1 Responses

What is the best way to insulate embedded joists in a basement Montreal Home?

...Vapor barrier. The basement is also dry and not humid. The joists are fully embedded inside the concrete slab. Hence, the floor above close to the baseboard i...

Posted by Emil Idf Jan. 7, 2020, 8:34 p.m. Foundation and basement improvements 1 Responses

How do you insulate a crawlspace with dirt floor?

...Vapor Barrier…. we would very much appreciate your input and advice. Cheers, Sal The first thing to mention is that if you have an uneven surface of solid roc...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 2 Responses

How do you do Radon mitigation when with insulating and ventilating a crawlspace?

...vapor barrier. The crawl space has a lot of debris the house flipper never removed. I bought a crawl space vent power fan attached to a humidistat but shut it o...

Posted by Cathy Gaskins Feb. 17, 2021, 3:46 p.m. Radon in Homes - Mitigation 1 Responses

Does paint work instead of a poly vapour barrier?

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

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?

...barrier (in which case the vapor retarder primer is an option since you've dealt with air leakage), or an interior air/ vapor barrier like the standard 6-mil po...

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

How do you prevent mold under flooring of a house on concrete slab?

...vapor barrier or a sufficient amount of EPS foam insulation would prevent moisture from migrigrating up from the ground where it can cause mold. A couple of que...

Posted by Linds Cullen Dec. 31, 2020, 4:11 p.m. Slab on Grade 2 Responses

How do you insulate concrete basement walls and avoid mould?

...vapor barrier. That is also why you should never put an interior vapor barrier on basement walls, since the source of moisture that could damage the walls is no...

Posted by William Hunter Feb. 22, 2021, 11:40 a.m. Basements improvements 2 Responses

If the foundation wall has tyvek wrap will it trap moisture?

...vapor barrier covering it, the vapor barrier is your problem. It's stopping the moisture from escaping where it can be handled by HRV systems. You will read in ...

Posted by Hos Boss March 9, 2021, 4:42 p.m. Basements improvements 1 Responses

How do you insulate an exterior wall from the outside?

...barrier, the vapor barrier and the thermal barrier as well. But yes, sometimes the price can be a bit prohibitive. However, it does work well and you also need ...

Posted by Stuart Seldon Feb. 11, 2021, 12:21 p.m. Wall assemblies - renovation 1 Responses

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

...barrier are two different things, so let’s address them separately. And since you didn’t write ‘ vapor barrier ’ I suspect you are writing from Canada? There’s ...

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

Can you put foil covered foam panels inside a framed wall?

...vapor barrier, and if you tape it well it can be the air barrier as well. What is your climate zone , and are you also installing Air conditioning? Air conditio...

Posted by William McCart Feb. 22, 2021, 12:38 p.m. Insulation and soundproofing 3 Responses

What is the best way to do a basement renovation?

...vapor barriers was originally to prevent moisture accumulation and damage in walls, which it does above grade, but below grade a vapor barrier CAUSES moisture a...

Posted by BIG FOOT Nov. 18, 2020, 9:33 a.m. Basements improvements 1 Responses

Is it ok to add insulation between joists in a crawl space?

...vapor barrior, but my indoor floors felt cold this last winter, making my whole living space cold. Would it be ok to add insulation between the floor joists? Ov...

Posted by Cheryl Bottomley May 11, 2020, 3:17 p.m. Crawl spaces 0 Responses

What is the best way to insulate the basement of an old house?

...vapor barrier, but I would put the vapor barrier right against the foam and do the poly on top. And as for finishing the floor afterwards, yes you can, but I’...

Posted by Bryan Squirrell Jan. 14, 2020, 7:59 p.m. Basements improvements 1 Responses