I’m planning on putting up T&G pine on the ceiling in a new workshop here in CT. Since it is a “barn” I don’t believe I need a fire barrier between the T&G and ceiling joists. However, I’d like to build the shop somewhat to house codes.
If I put drywall up before the T&G, do I need to tape/mud the dry wall?
Also, is an air barrier attached to the bottom of the ceiling joists recommended?
Thanks!
Evan
Replies
Hi Evan,
We install a lot of T&G and shiplap paneling here in RI; for residential jobs we're typically required to install 1/2" gypsum panel and set tape at seams and joints only (no skimcoat, no feathering of compound) and mud over your screw holes. This is somewhere between a 1 - 2 finish. With some insulation/sealing prep and proper execution, your drywall will constitute an effective air barrier. Do some research on airtight drywall installation on FHB for a more thorough explanation. Layout your framing on the completed drywall so the nails used to secure the T&G paneling land on rafters and don't perforate the drywall between rafters.
Other opinions may differ, but that's the nature of construction - that's just my 2 cents on your project.
Yes drywall should be fire taped- one coat of mud and paper tape
Thanks!