Barrier / Discussions

What is the process to seal a house using Aero barrier spray?

...barrier will not work in the vertical plane. Can you explain this concept? the vertical plane need another method to seal? The Aerobarrier air barrier spray you...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.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. This page explains it clearly ...

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

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...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 it is ...

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

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

...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 side)...

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

Do I need a standard 6 mil poly vapor barrier with dense cellulose exterior wall?

...barrier over the cellulose on the inside under the drywall, will I then cause vapor to be trapped between the outside vinyl /foam board and poly barrier. The fo...

Posted by jeff Chormann May 1, 2020, 9:18 a.m. Air and vapour barriers 2 Responses

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

This house is located in SC and is built with 8" block walls. What is the best way to insulate and apply vapor barrier. I have to install studs to the interior...

Posted by Scott Brekke Nov. 22, 2019, 9:37 a.m. Basements improvements 1 Responses

How do I get rid of moisture with cement floor crawl space that has a vapour barrier?

...barrier because of dry rot. Luckily no cracks in the foundation and floor joists are fine but I noticed that barrier is extremely wet. Running a dehumidifier ha...

Posted by Cindy Chatham 04 chatham Aug. 25, 2020, 4:47 p.m. Crawl spaces 1 Responses

How do you attach exterior siding without affecting the air barrier on a passive house?

...barrier. Thanks, Scott The Zip Sheathing System is an air barrier sheathing when the joints are taped as specified by the manufacturer. There should not be an...

Posted by Scott Bowker July 16, 2018, 11:07 p.m. Wall assemblies - new construction 3 Responses

How do you do a vapor 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 4 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 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 can I get rid of moisture between the vapor barrier and the insulation in a basement?

...barrier. By cutting a bunch of holes in your vapour barrier you are letting moisture though, which is testament to the fact that the vapour barrier is not hel...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 15 Responses

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

...barriers as a radon barrier, which is better than nothing, but I’d want a thicker one for my home. There is a barrier called Radon Block, which is first of al...

Posted by Grady 22 Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

Where should I put a vapour retarder?

...barrier. Six to eight inches of rigid rockwool insulation would go up next, then strapping for the exterior sheath, board and batten. I have read that the optim...

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

How do you re-do the insulation on a old cabin from the outside?

...barrier, vapor barrier and air barriers) work in a wall - Building science made easy video– How to design walls that work properly Since you are going about...

Posted by Raphael Couture Sept. 14, 2020, 8 a.m. Wall assemblies - renovation 3 Responses

What is the best material to use on top of plywood for water proofing?

...barrier / exterior air barrier, see our how to install an air barrier properly DIY video . ZIP systems are a good ‘all-in-one house sheathing / weather barrier ...

Posted by Babak K July 27, 2020, 12:22 a.m. Air and vapour barriers 3 Responses

Which house wrap is best?

...barrier and how to install siding as well – How to install air barriers properly for a durable and energy efficient house How to install siding so walls can...

Posted by Kathy Moller Aug. 2, 2020, 11:50 a.m. Air and vapour barriers 1 Responses