blower door test results

Discussion in 'General Discussions' started by ohio, Nov 14, 2019.

  1. ohio

    ohio New Member

    We get our electric through a co-op and just had an energy audit completed. It consisted of a blower door test and then an infrared audit.

    The quick results were an ACH@50 with our result being 4.6 and a couple quick fixes before the report arrives within 2 weeks.

    The quick fixes were
    • gap found under basement cantilever beam that extends underneath our fireplace that leads directly's about an inch wide and 18-24 inches long....spans a couple rafters
    • two can lights in great room
    • exterior door seal shot allowing exponentially more leakage than should
    My question right now is the ACH@50 calculation. How is this determined regarding the basement square footage? Is the basement included? We have main floor of 2100 sqft, upstairs of 700 sq ft and basement of 2000 sq ft. The upstairs is a loft so another 1000 sq ft is open to the downstairs and I believe is 16 foot high....

    Home built in 2005 with poured basement.
  2. mtrentw

    mtrentw Active Member Industry Professional Forum Leader

    Your test report should include whole house volume they used to calculate. You can do the maths on this to verify.

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