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My house will built in 1980. I have a basement that is kept warm from the boiler that provides baseboard heat for the first and second floors above the basement. This is not a crawl space. The floor joists between the basement and the first floor are exposed and not insulated. What type of insulation should I use? Rolled fiberglass or paper covered batts? If paper covered batts, how should they be installed (paper side up towards the flooring or paper side down towards the basement floor) Thanks!
I am considering installing insulation between the floor joists in the basement so as to prevent cold air from the basement from leaking into the first floor. Yes, I realize cold air sinks and hot air rises. However, there are differences in pressure levels between the floors, correct? I live in New Hampshire.