Using the CFM per 100 sq ft method, a 1,600 sq ft house leaking 120 CFM has a leakage rate of:
A) 1,600/120 = 13 CFM per 100 sq ft. B) 1,600 + 120 = 1,720 CFM.
C) 1,600 - 120 = 1,480 CFM. D) 120/16 = 7.5 CFM per 100 sq ft.
D
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