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Three Dimensions of High Efficiency Construction - High Performance Canada Episode 3
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- Опубликовано: 17 авг 2024
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Shaun St-Amour is a Product Consultant from 475 High Performance Building Supply. Shaun has many talents, and one of them is teaching building science in a super engaging and enthusiastic way. In this episode, Shaun takes The Build Show on-site to see first-hand how critical elements of a high performance home come together in three dimensions. The home was fabricated off-site by TAG Panels, designed by Kott Studio, and built by Kia Kaha Construction. This home is the pinnacle of Whistler living, with so much exposure to the natural elements and so much great building science to protect it with.
I've always imagined if I built my own home using stick framing, that I would want plywood on in the interior part of the wall, mainly for strength however.
How do you air seal the WRB to the dimple mat? You have air movement on both the outside of dimple mat and the inside.
The WRB is air sealed to the waterproofing membrane layer behind the dimple mat. It gets taped just above the drain mat. Great question!
I'm having a hard time seeing the benefit of connecting the wrb with the dimple mat. What is below ground will always be moist, even behind the dimple mat. Concrete is the air barrier, not the dimple mat.
Oh shit we are almost at the fourth dimension
How are you air sealing around all the window retention strapping? From my experience this is an extremely difficult detail to execute properly.
backer rod stuffed between the window frame and rough opening then caulk the backer rod to seal from window to framing
I didn't understand how he was getting a seal between sill/jambs/header and the wall. It seemed as if he was saying we're taping it but he mentioned insulation. I am guessing it was a detail still to come.
The air barrier connection is on the interior side of the window. The window gets taped, not rod and caulked) to the membrane that is taped to wood of the rough opening. The plywood which is also on the interior side of the wall is acting as the primary air barrier, vapour ...
@7:37 it shows the exterior wrb being wrapped to the inside and tape to the interior. I assume it is that way all around the opening
Hmmm… why don’t we(carpenters) use more 3D programs to educate other carpenters who do not keep up with difficult details?! Guess it all leads to extra cost.;;; thats why I don’t see much probably.
I don’t agree with this system. In this day and age why are companies still messing with glorified house wrap. Prosoco makes great top of the line fluid applied products. No wondering which tape to use or do I need to primer the substrate first.
When building nice houses why cut corners with the wrap??
True with a custom house, just do fluid applied. Especially with harsh weather, if this was San Diego then not as concerning. If lower end build then a wrap is more budget friendly
Price and ease of application. I have experience applying both systems and the cost is much higher and they are much trickier to install than tape systems.
@Donut Chucka
With prosoco it does not need a dry day and thickness is no problem, it is thick enough when you can’t see the structure through the prosoco.
Other products can’t say that.
Theres no exterior sheathing to apply a liquid WRB to, plus im pretty sure that liquid WRB are vapor closed, could be wrong about that one but you need a vapor open membrane to be able to dry toward the outside in these cold climates. The mento solitex that they are using is 38 perms, so it will let the assembly dry outward and protect the framing and cellulose insulation from moisture issues. To me this assembly makes total sense, they are not cutting corners.
Also they are not "wondering" which tapes and such to use. Shaun from 475 is there to guide them through the process. Proclima products are very straight forward once you read all their data sheets.