Spray foam insulation is ideal for crawlspaces on walls including rim joist or
underside of floor if there is no walls.
Spray foam insulation is a smart choice for cathedral ceiling as well.
Depending on wich substrate you will spray foam, the thickness of spray foam insulation
used should vary. 2lbs density polyurethane spray foam gives you approx R6 per inch and provides air barrier after 1 inch and vapour barrier after 2 inches, making it the best
product to insulate your rim joist and many other places where conventional methods just don’t produce good results.
