Insulation of non accessible floor space
I have a building that is historic in nature, built in 1896, pressed tin ceilings, 14′ ceilings hardwood floors. The floor is oak hardwood over 3/4″ pine/douglas fir sub floor over 2×12″. The floor is over a crawl space, sort of, and appears to be a dirt floor. This area is basically not accessible. There is nothing under there to access so to access it the floor has to come up. There is absolutely no insulation under the floor and in northern ohio, I need it. How you recommend I insulate the floor and with what? Take up the floor and spray in foam insulation? Take up the floor, section rigid panels between joists, which would be so very time consuming, but Im at a loss. Any ideas?
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