Air barrier / Discussions

...air barrier right? To clarify - a post and beam home (timber frame) would have support posts with wall openings between them, from what you say I will assume stacked logs, but correct me if that is wrong. based on that - yes, the air barrier location if perfect. I would point out that some air barrier materials allow m...

I read a couple of articles regarding vapor barriers and insulation.  I live in update NY, our home was constructed in 1952.  We are adding a full shed dormer with 2x6 walls and 2x12 rafters.  Our plan is to use closed cell in the walls and ceiling - which will have a copper standing seam roof.  Code requires a Tyvek t...

...air barrier was installed up to the top of the exterior wall. I wonder how to prevent the air from entering between the top plate of the wall and the OSB r4? The roof trusses are already laid on the top of the wall, so it is difficult to put red tape on the length of the wall. I have the impression that the air barrier...

...air barrier. Weather barrier house wraps like Tyvek, Home Wrap etc, are airtight as a ‘product’, but once you slam a few thousand staples into them, missing the mark with a few hundred probably and doing nothing but creating a hole for nothing, it is hardly effective as an air barrier. Not to mention that most commonly...

...air like so many building products these days do. Read more below. After a look over those pages let us know if you have more questions. Aerobarrier Air Barrier Spray for Sealing air leaks in Attics or Homes Whether you're fixing a leak or finishing a renovation, choosing the right sealant for home repairs ensures the ...

...air barrier' and in the other to the 'vapour barrier'. It can be confusing because 6-mil poly is the go-to for air and vapour barrier but they are being discussed separately.  This quote you included - "But, if you have no air barrier at all, you really do need one." is about the air barrier and stopping air leakage th...

...air barrier, should a vapor barrier (non permeable) be used to hault moisture flow between the attic and living space. Thinking permeable is better but I'm hearing differently. Where and when to use vapor barriers in construction and renovation can vary depending on a few things – the climate you are building in, wheth...

...barrier and vapour barrier.  Leaning towards rockwool as we are in a extreme fire zone.  From the inside out I am thinking Drywall, Vapour barrier, rockwool, sheathing, 2" rockwool, tyvek, rainscreen, siding.  Is this correct? It also appears there are a few rockwool products that can be used for exterior insulation an...

...Air barriers and vapor barriers have two very different roles, even if they rely on the same actual wall component to perform as intended, which is usually 6-mil poly. To learn what they do I would first point you to these pages here - The difference between air and vapor barriers Do radiant barriers work and are they ...

...air 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 exterior air barrier (see our exterior peel and stick membrane installation video), or you can use the standard 6 mil poly interior vapour barrier as an air ba...

...air barrier so you can find and fix them.  That list of questions is pretty long, and I think the best place for you to start is figuring out what your budget is to make repairs, as that is a rather extensive list.  The best way we can help at this point is to lead you to some relevant pages that cover the topics you ...

...air space, is the wall still under construction and it was frost forming on the exterior sheathing? 

...air barrier, and as long as you have at least 2 inches it would also be a suitable vapor barrier, and it will offer you thermal protection with the highest R value per inch.   You possibly 'could' leave the sheathing on and blow foam through holes, but I would leave that call up to the individual contractor to see if t...

...barrier membrane (Intello or Smart Membrain from Certainteed) The inconsistencies in a concrete block foundation mean there will be a small air space regardless of how you space it, and air spaces are always good to have. But, it is also very important to make it airtight. If you have a Basement wall with a high air le...

...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, are you looking for a vapour barrier solution for Renovations? If you are simply concerned because it is an older house without a vapour barrier then it would in ...

...air space so the exterior of the wall can dry. Here is our how to install siding properly video, and another on how to install a weather barrier. And read here for more information about choosing breathable weather barriers. Most specifically, read our guide page to find the best way of installing exterior insulation t...

...air barrier. This technique helped us reach Passive House performance levels (though we didn’t go for Passive House certification, it's actually a LEED Platinum house), but it helped get our air leakage rate to about 0.6 ACH (here is our air barrier installation video). As for ideal window placement within a wall assem...

...barrier, but as it likely has multiple coats of oil paint by now it would pretty much have an interior ‘vapor barrier’ anyway, just with a few generations worth of oil paint being applied. What you are likely missing at this point is an effective thermal barrier and air barrier, so if you are going to redo the exterior...