We are installing 1×6 T&G Pine on our ceiling
We are installing 1×6 T&G Pine on our ceiling. Have recently heard we should install drywall layer first. Is this correct?
New construction house with 2/12 pitch roof on a gulf island about 80 miles north of Vancouver, BC. Climate very similar to Seattle, Wash. The roof costruction is 24 on center, 9 inch trusses (TJIs), with 2×4 horizontal strapping, 1/2″ plywood, ‘Nova Seal’ waterproof membrane and a standing seam metal roof. Insulation is two layers of Roxul, one R22, second of R14 for total of R36. No vapour barrier being installed on walls either, just 1/2 ” drywall. Do we really need a layer of drywall as well as the T&G Pine?