Question: Can I use foam board in my basement?
Mike writes: "I live in Chicago and I am remodeling my basement. The studs are 2x2 so I am wondering if FOAMULAR® foam board would be better than compressing Kraft-faced fiberglass insulation."
Answer:
I like your choice of PINK FOAMULAR insulation. That is a better choice than compressing fiberglass insulation batts because compressing fiberglass will cause it to lose insulating value, or R-value.
I need to remind you, however, that you need to cover the FOAMULAR insulation with a 15-minute thermal barrier such a drywall. It is a code violation to leave foam insulation exposed.
Also, if you use an adhesive to adhere the boards to the basement walls, it must be free of petroleum.



