Isn't it strange that they didn't completely cover all insulation with a vapor barrier?
I don't think they covered any insulation with vapour barrier. They put the white moisture barrier on the bare concrete, put insulation over top and the metal cladding on the outside.
I thought it went on both sides? On a home there is plastic vapor barriers added to the interior and to the exterior. It goes over the particle board when building a home. You always see that Tyvex or 3M plastic covering a home before the siding goes up.
The exterior film is breathable but water repellant, it is to prevent water ingress.
It is still a form of plastic like barrier on the exterior. Even in the images shown you can see some places the insulation is covered with the breathable film and others the insulation is just exposed. I'm just curious what insulation warrants the film and which doesn't? I would think you would want to prevent ingress to any insulation. I'm I totally missing something?
I am pretty sure they will end up covering all of the exposed (roxul) insulation with the tyvek type layer before the panels go on. Looks like they stopped once the shapes got a pit more tricky.
That being said, water does not effect the performance of roxul - but you still want to avoid water getting into the wall assembly from the exterior.
I am pretty sure they will end up covering all of the exposed (roxul) insulation with the tyvek type layer before the panels go on. Looks like they stopped once the shapes got a pit more tricky.
That being said, water does not effect the performance of roxul - but you still want to avoid water getting into the wall assembly from the exterior.
They didn't on the east side, that's why I was asking. It seems odd to me but I guess they feel the cladding will offer enough protection from the elements.
I didn't see it on any of the towers.. Water proofing on the bare concrete, insulation, then metal cladding. The cladding being covered in a white protective film that looks like the same material as the water proofing. That get's pealed of in the end, which is what happened on that east side last week.
I have no idea what standard is as I'm not really in that profession. I assume I was missing something, I may not have seen everything while the east side was being finished. The cladding went in pretty quickly.
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