Should I use a poly-type Membrain sheet or vapor retarder paint for ceiling?
I’m at a crossroads with how to deal with the ceiling vapor retarder in my new construction home in climate zone 5.
I’m prepping for drywall, and am wondering if I should apply Certainteed Membrain vapor barrier to the underside of the studs on the ceiling, and then just have the ceiling drywall screw attached…
Should I have the ceiling drywall glued and screwed and use vapor retarder paint instead.
I plan on blowing R60 cellulose in the attic when done, and am concerned about it’s weight on the drywall.
Most drywall installers I’ve talked to advise against using glue. For one it adds more cost, and it will also be difficult to repair any damages in the future.
I’ve seen Bill Hulstrunk’s comment about successful experience of adding R100 to the ceiling without any sagging issues, but I wonder if he was just screwing, or using glue as well?