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Vapor barrier / Posts

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

...barrier joins in with your walls? Hi Anwas, Vapour barrier paint (or Vapor barrier paint for our US neighbors) is more of a solution for walls rather than c...

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

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does the plastic vapor barrier go??

...vapor barrier down before or after the EPS foam insulation and as there's a chance of radon what specification of vapor barrier do I need, plus can this do the ...

Posted by Les Poldark Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

Can I spray foam insulate from the outside?

...barrier . And read here for more information about choosing breathable weather barriers . Let us know more details about our wall assembly and what is behind ...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 1 Responses

How can I get rid of moisture between the vapor barrier and the insulation in a basement?

...vapor barrier i.e. the side closest to the insulation. The vapor barrier is dry to the touch from inside the basement. Hi David, The answer is actually pretty...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 1 Responses

Mitigation of attic moisture in 1941 home

...barrier vs vapor barrier concepts. My house is above a dirt crawl space. And we have a very high water table at 18 inches!!! It is definately a part of my stack...

Posted by Rachel Katz June 8, 2019, 4:06 p.m. Air and vapour barriers 0 Responses

Improving insulation when replacing siding.

...barrier, and as long as you have at least 2 inches it would also be a suitable vapor barrier , and it will offer you thermal protection with the highest R value...

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

Can you put hemp insulation in an attic?

...barrier you mention a ‘foil barrier’ on the floor of the attic as well as the underside of the roof deck? That would be a vapor barrier if so, just wondering if...

Posted by Pamella Weatherly-Phillips Aug. 16, 2019, 11:49 a.m. Roof assemblies - renovation 1 Responses

Insulating walkout basement made of CMU Wall with a rockwool.

...vapor 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 foundati...

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

Durable basement wall insulation techniques

...vapor barrier to the concrete or between the studs and drywall and the mineral wool has no vapor barrier. Is this space between concrete and studwall a terribly...

Posted by Chad Johnson March 25, 2019, 8:33 p.m. Basements improvements 1 Responses

Metal roof assembly

...barrier or vapor barrier. What is recommended at this stage of the install of the roofing assemby? Air or Vapor barrier? install two layers of 1 -1/2 inch...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

How to remove moisture/condensation from basement walls

...vapor barrier. A dehumidifier is a good thing to have in a basement but it won’t do much to remove moisture from the other side of a vapor barrier. Judging by h...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

Is EPS or XPS better for use in basement rim joists? Should faced or unfaced foam boards be used?

...vapor barrier’ in residential constrution . So that would be sufficient for us, and if you get one with a foil membrane then it is even less permeable that XPS,...

Posted by Thomas Dispenza Sept. 8, 2019, 12:43 a.m. Basements improvements 4 Responses

Ceiling Insulation

...vapor barrier. And it sounds to me like you have something of a timber frame ceiling at least, which would give you room to insulate between the purlins or ra...

Posted by antonija klotz Oct. 20, 2019, 7:31 p.m. Roof assemblies - renovation 1 Responses

Foam board insulation in basement

...vapor barrier) you would be ensuring that the wall cannot dry to the interior either, so what you would have is an ideal mold incubation chamber. If you are s...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

High humidity levels and coldness

...vapor barrier below the concrete floor, so even if you did insulate and seal the walls with a spray foam vapor barrier , it will likely continue to absorb moist...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

What insulation should I put on basement block walls that is resistant to mold?

...vapor barrier on the walls if that's where the moisture issue is coming from. If it's a poured concrete floor and it has no vapor barrier beneath then that will...

Posted by Ken Gee July 31, 2019, 3:25 p.m. Basements improvements 3 Responses

Current info and references for Legalett Air Heated Shallow Foundation system

We are planning a build for June 2020 in Prince Edward County, Ontario where there is 1 ft of topsoil, 2 ft of clay and then bedrock. Structure planned is a bu...

Posted by Steve Sykes Aug. 18, 2019, 3:21 p.m. Slab on Grade 1 Responses
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