Barrier / Discussions

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

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

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

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 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 not one ...

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

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

...barrier that will still allow moisture to dry on the inside as to not have 2 vapour barriers, but stop any air and thus condensation. There would be no problem ...

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

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 2 Responses

How do I create a complete air barrier using a vapour retarding primer?

...barrier AND air barrier, but air leakage and vapour diffusion are actually two entirely different things . I’m not sure how extensive your renovation will be ...

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

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

...barrier . I won't go to far off on a tangent but please see this page about WRBs (weather resisistent barriers) as air barriers , because you could go with an e...

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

I'm looking at installing rigid insulation the exterior of My Double brick 1880s

...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 fact i...

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

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

...barrier on the outside of a building is not a wise. I’m wondering if perhaps you misread that? You should never put a vapor barrier on the exterior of a wall in...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 1 Responses

What is the best to insulate metal structures for all seasons?

...barrier would be a bad idea. Instead, one would want to rely on a very good air barrier, preventing air flow, but allowing moisture to dry. I understand that an...

Posted by Morgan Aldridge Jan. 19, 2019, 1:53 a.m. Wall assemblies - new construction 1 Responses

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

...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 can in...

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