Advice for insulating a new build unfinished basement?
We are planning on tearing down and rebuilding our home which will be a 4500 sq ft bungalow with an attached quad garage. Finishing the basement is not possible immediately, so what is the best choice to economically insulate the basement walls without having to drywall up? Would thick rigid foam be the only option to get R20? Is it allowed to just put up rigid foam with nothing else on the foundation wall?
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