Deffusion barriers;

I would injoy any decusion

**Beware of moisture driven inward **

Holladay says an interior polyethylene vapor barrier “can work” in cold climates such as Vermont, Minnesota, and Canada, providing the building is not air conditioned, and there is no exterior foam sheathing on the walls. Still, he says, it’s not a great idea.
I agree. I have opened a number of walls . Mold, or mould, Weather infiltration and wet fiber glass.