Retrofit basement insulated floor

Home in zone 5A built in 1999 with CMU foundation walls. No evidence of insulation or vapor barrier under the concrete floor in the basement. The basement is partially finished and… Home in zone 5A built in 1999 with CMU foundation walls. No evidence of insulation or vapor barrier under the concrete floor in the basement. The basement is partially finished and…Read MoreGreenBuildingAdvisor