62.1 has an exahust requirement for mechanically ventilated Parking garages (Table 6-4), with an exception C - no ventilation required if two or more sides comprise walls that are at least 50% open to the outside.
But for a naturally ventilated space (5.1), section 6 does not apply, yet 5.1 only requires 4% of occupiable floor area as the minimum opening requirement.
This seems like a major difference.
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My last question is if anyone has modelled a naturally ventilated garage and what information source did you use to apply the most correct air changes to represent the natural ventilation of this space?
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