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Ventilation factor

BR 187 | Ch. 1 | Eq. 1

O = \dfrac{A_s}{A \cdot \sqrt{H}}
A_s
100.00 m^{2}
A
20.00 m^{2}
H
2.50 m

Ventilation Factor

3.16 m^{-1/2}

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What's the ventilation factor for a room with 100 m² of internal surface and a 20 m² opening, 2.5 m high?
That's Ventilation factor (BR 187 | Ch. 1 | Eq. 1). It uses the internal surface area A_s, the opening area A and the opening height H. I've filled in the form and run it. Ventilation Factor 3.16 m^{-1/2}
And if the opening is only 1.5 m high?
It becomes 4.08 m^{-1/2}. I've updated H in the form and re-run the method, so you can check the sheet.
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