Can we replace fiberglass insulation with XPS?
We have a 33 year old townhouse that has a brick exterior on top of wood frame. There is fiberglass insulation in the wood frame, but we have lots of air leakage.
Would there be a problem with replacing all of the fiberglass insulation with XPS rigid insulation or spray foam insulation? If we did, would the XPS and or spray foam be an adequate air and vapor barrier?
Our goal is to reduce the air leakage and heat loss/need for air conditioning.
Thanks . . .
Posted Jul 3, 2014 7:15 PM ET
Edited Jul 4, 2014 4:37 AM ET
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