New answers tagged vapor-barrier
I think you'll have to get one of these vapor barrier boxes, and fit it before installing your electrical box. Seal up where the cable penetrates, then install your electrical box. The other options would be to cut a larger hole and patch drywall, or seal it up from the back side (but that would require access to the other side of the wall/ceiling).
It depends on where you live and how you plan on attaching everything. For interior insulation you want the vapor barrier on the warm side so the colder regions would always do the interior facing and some warmer climates would do the exterior side of the insulation. The underlying rule of where would the moisture most likely be trapped still applies but it ...
Yes. I would use a form of home wrap. No brainer in Montana. And I usually use Tyvek(?). Not sure of other have opinions on the best brand or style.
Yes vapor barriers are to prevent condensation inside of insulation, greatly reducing its efficiency. In your climate, if you use air conditioning and that space has insulated exterior walls, you will want a vapor barrier on the exterior side of the insulation to prevent outside humidity from condensing inside the cooler insulation. If your exterior walls ...
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