I am making up timber frame panels by nailing OSB on to C16 studs with the intention of then covering the OSB with Tyvek breathable membrane. I have seen recommendations that the OSB joins should be taped and sealed to make them airtight. "Airtight" seems to a desirable idea in building these days.
So I am curious as to why I should use (expensive) breathable membrane on something I am trying to make "airtight"?
Just curious.
So I am curious as to why I should use (expensive) breathable membrane on something I am trying to make "airtight"?
Just curious.