Air barrier membrane / Discussions

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

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

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

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 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 4 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

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 There a Difference Between an Air Barrier and vapor barrier?

...air 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...

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

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

...air and from water. Insualte inside and/or outside. 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

Can you install foam boards directly against basement walls?

...membrane and not just the bitumous spray. Since you likely don't have such a membrane on the exterior, the blocks will always have a certain amount of moisture ...

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

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

...air 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 prob...

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

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

...airly new house (about a year old). The concrete basement foundation walls are framed (wood), insulated, sealed with a plastic vapor barrier, but not drywalled....

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

How do I insulate my half below grade basement?

...barrier playing out – that would be a vapor barrier on both sides of the stud wall, no? Dry inside does not mean for sure the concrete is dry, in fact if it h...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

What is the best way to frame window openings when adding exterior insulation?

...air barrier membrane comes up into the rough opening, we then put Rockwool insulation between the frame and rough opening and finally taped the windows to the a...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

How do you do insulation 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

My basement is smelly and humid, what can I do about that?

...air, don’t stop at just the French drain. You would be wise to treat your walls with a waterproof coating and include a drainage mat (dimple membrane) that will...

Posted by Jeff O. Feb. 8, 2017, 10:22 a.m. Foundation and basement improvements 2 Responses

What type of Insulation can I use on the exterior of my home?

...air barrier only, or all in one - insulation, air barrier and vapor barrier. this is a good and bad thing - we think it's great that they are offered, but I wis...

Posted by Scott Muller April 18, 2019, 2:19 p.m. Wall assemblies - renovation 6 Responses