How do can I insulate an existing basement floor from 1906?
Old house; basement is only 21% of total under house footage. 79% is crawl space. Basement Never painted. Walls go up 4 ft to a 2ft wide ledge and then the old stone foundation. 1 side is an exterior wall; 3 sides are crawl space beyond the stone. A lot of heat is lost through uninsulated basement floors, so good idea...