Vapor barrier / Discussions

How do you remove water droplets from under a crawl space vapor barrier?

...vapor barrier? Water is acculating on the dirt side of the vapor barrier. If I crawlspace has water droplets forming under the poly vapor barrier (on the dirt...

Posted by Paul Racioppo Feb. 7, 2020, 3:49 p.m. Crawl spaces 3 Responses

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...Vapor Barrier to be necessary? Thank-you Michael Vapor barriers can be a problem with homes that are air conditioned, because it reverses the vapor drive. When ...

Posted by Michael Klauck March 6, 2020, 1:24 p.m. Air and vapour barriers 1 Responses

How do you apply vapor barrier and insulation to a CMU house?

...vapor barrier. I have to install studs to the interior of the block for seismic resistance and attach the studs to the block. The block walls will basically bec...

Posted by Scott Brekke Nov. 22, 2019, 9:37 a.m. Basements improvements 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. The answer is actually pretty easy but no...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 2 Responses

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does 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 Grady 22 Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

Is There a Difference Between an Air Barrier and vapor barrier?

...barrier and not the vapor barrier that is compromised, though it may well be the same product so that is kind of splitting hairs. What is almost certainly hap...

Posted by Sherri Mccormick Aug. 17, 2018, 3:24 p.m. Roof assemblies - renovation 3 Responses

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

...barrier joins in with your walls? Vapour barrier paint (or Vapor barrier paint in the U.S. ) is more of a solution for walls rather than ceilings to prevent the...

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

How do you do a Vapour Barrier in a Dense Pack Cellulose Wall?

...barrier is okay? How do I convince the building inspectors? I can see how it doesn’t exactly look like a vapor barrier in the diagram as it is black, but it is ...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 3 Responses

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

...barrier as an air barrier. Keep in mind that poly vapor barriers in homes with air condition are a problem in some locations, what climate zone or city are you ...

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

Where should I put a vapour retarder?

...vapor barrier If you aren’t planning to add air conditioning it may be a lot of effort to mitigate a very minimal risk, so the big question really is about wh...

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

How you vent a metal roof?

...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 do you seal windows from the exterior for water and air but not create a vapor seal?

...vapor barrier. I am concern that taping it outside might cause the vapor sandwich which I want to avoid. I am not sure what you have done for 2015 model home fo...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

How do you best use polyiso insulation in a basement?

...vapor barrier & ½” gypsum drywall, sealed with drywall sealer and painted with vapor barrier paint. What problems do you see with this detail? Thank you Polyi...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 1 Responses

How should I insulate basement Walls in climate zone 5?

...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

How do you insulate a 3 season cottage?

...vapor barrier material and location.

Posted by MARK E BROWN LLC Nov. 7, 2019, 4:57 p.m. Wall assemblies - renovation 0 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...barrier and possibly paint it to also be a vapor barrier. Then use unfaced mineral wool or fiberglass batts. But the tongue and groove boards would be nailed th...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

How can I solve a moisture problem in attic from 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

How do you prevent mold in a finished basement?

...vapor barrier. The scariest part is that our house was only built in 2007! Now we've managed to strip all this smelly mess out, we tried to get quotes off con...

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses