Air barrier membrane / Discussions

is a double vapor barrier on a South Florida roof bad?

...barrier' potentially trapping moisture in the roof deck causing long term issues given Naples is hot and humid. I was of impression open cell foam is an air b...

Posted by Arthur Moore April 6, 2020, 12:57 p.m. Roof assemblies - renovation 0 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 I create a complete air barrier using a vapour retarding primer?

...air and vapour movement comes from the fact that usually one product (6-mil polyethylene) is used as both the vapour barrier AND air barrier, but air leakage an...

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

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

...air barrier , we had our poly barrier go through the wall assembly and taped it to the exterior air barrier membrane. That would be a solution for new builds,...

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

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

...barriers) as air barriers , because you could go with an exterior air barrier ( see our exterior peel and stick membrane installation video ), or you can use th...

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

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

...airtight barrier. Thanks, Scott The Zip Sheathing System is an air barrier sheathing when the joints are taped as specified by the manufacturer. There should ...

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

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

Does paint work instead of a poly vapour barrier?

...air barrier as well, which is very different, read more here – The difference between air barriers and vapor barriers and how to apply them As for a way to ...

Posted by Bill Fletcher May 6, 2020, 1:46 p.m. 1 Responses

Can you put hemp insulation in an attic?

...barrier if so, just wondering if you have an air barrier. If you don’t have a proper air barrier and you are removing all the insulation, then that is really ...

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

What is the best way to insulate a home from the outside?

...membrane over top as an air barrier. If you do add new plywood sheathing, you could just tape the joints and it will act as your air barrier Read all about ho...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

Is the ZIP sheathing system good or bad for water control?

...barrier and air barrier. It’s a great concept, but you are not alone in your skepticism. Before you give it a yay or nay, here are a couple of pages that will h...

Posted by Trevor Prinz Nov. 26, 2019, 4:03 p.m. Walls and Roofs 5 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

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

...airtightness. So would you suggest using air barrier and tape first? Or go straight for the Aerobarrier and bypass all the hassle of membrane and tape? Or is...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 3 Responses

How do insulate the outside of a log home?

...air barrier / weather barrier membrane directly to the logs, then the insulation directly to the membrane with no air space. Attach the insulation boards with v...

Posted by Michael Hickey Aug. 2, 2018, 6:03 p.m. Wall assemblies - renovation 1 Responses

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

...airs. This page explains it clearly - The difference between air barriers and vapor barriers What is almost certainly happening is that warm, humid air is e...

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

What is the best way to insulate a 1780 brick federal with stone foundation in New York?

...air and from water leaks. Any advice is apreciated. Insulating the outside of the foundation is a much better idea if you can do it. Insulating the interior of ...

Posted by carole roseman Jan. 5, 2020, 2:39 p.m. Foundation and basement improvements 1 Responses