Posted on July 30, 2013 by Hannah McKenzie.
Tightest House Congratulations to Caldwell County Habitat for Humanity. The blower door test result was 386 CFM50 for this four bedroom home. Great job wielding those caulk guns! Tightest Ducts Congratulations to Habitat for Humanity of Wake County. The duct blaster results were 20 CFM25 for this five bedroom home.