Air and vapour barriers
Interior sheathing as an air and vapor barrier
...sheathing?
People also often ask the question which is better, OSB or plywood for roofs, walls and floors? That really depends on the other materials you're using in the wall or roof assembly.
Rated at 40NG, 3/4 inch OSB sheathing can be one of the better vapor barriers for home construction in most of Canada. But in ...