ROSEMONT, Ill. — Even when properly insulated, concrete floors suspended over cold spaces will lose up to 80% of their heat. As heat is lost through the floor, it puts a costly strain on HVAC systems ...
Q: We have a bathroom on the ground floor, and we're replacing parts of the subfloor because they have dry rot. The subfloor is above concrete. Do you recommend putting insulation between the concrete ...
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