Air and vapour barriers
What is An Air Barrier?
...Airtight drywall approach (A.D.A):
With the help of gaskets and sealants, gypsum board (drywall) is a very effective air barrier, so long as the joints are sealed with drywall compound and tape; and all junctions at the floor, roof and openings are sealed with gaskets and appropriate sealants.
Breathable insulated stru...
