CALCULATION OF AIR INLET FLOWS
Case 1: ∆P = 20 Pa S ≥ QM - Qf (Forced ventilation)
Case 2: ∆P = 10 Pa S ≥ 1,4 QM - Qf (Natural ventilation)
S = sum of air inlet vent modulus values
QM = maximum air extraction rate from dwelling
Qf = air leakage rate of the whole building envelope at 20 Pa shown in the table below
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