Hi everyone,We have been living in our  air-tight house (.44ACH50) for a couple months now. We live in climate zone 5.We have an unvented conditioned attic space that we use… Hi everyone,We have been living in our  air-tight house (.44ACH50) for a couple months now. We live in climate zone 5.We have an unvented conditioned attic space that we use…Read MoreGreenBuildingAdvisor

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