BPI Building Analyst Practice Questions - BPI Building Analyst Professional (BA-P) Certification Exam

What is the correct formula for calculating ACH50 from a blower door test?

ACH50 = CFM50 / building volume ACH50 = (CFM50 x 60) / building volume ACH50 = CFM50 x building volume / 60 ACH50 = (CFM50 / 60) x building volume

Correct Answer:

ACH50 = (CFM50 x 60) / building volume

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