Table 6.4 of ASHRAE 60.1-2010 Note C states that for parking garages exhaust not required if two or more sides comprise walls that are at least 50% open to the outside. I have a garage with irregular geometry, it is not a rectangle but there are 6 sides (2 long sides, 1 medium sides, 3 short sides). Can the two walls that are at least 50% open to the outside be 2 of six sides, for example 1 long side and 1 short side of my parking garage?
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