4B, 2-story home with an unconditioned attic and 2 different HVAC systems (1st and 2nd floor)I’ve been improving the insulation in the attic (I now have R-60 with cellulose instead… 4B, 2-story home with an unconditioned attic and 2 different HVAC systems (1st and 2nd floor)I’ve been improving the insulation in the attic (I now have R-60 with cellulose instead…Read MoreGreenBuildingAdvisor

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