Fiberglass BIB Vapor Barrier
I’m in CZ4 and just had the walls of our new addition insulated yesterday. They did the BIB system with blown in fiberglass. It left me wondering if there should be any vapor barrier as the mesh netting certainly doesn’t qualify. Is paint on drywall sufficient enough in this application, or should there be something added? Wall assembly is pretty basic, starting from the outside:
Hardie – WRB – 7/16 plywood sheathing – 2×4 framing – blown in fiberglass – BIB netting – drywall.
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