This is from Ontario building code:
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9.19.1.2. Vent Requirements
....
(3) Required vents are permitted to be roof type, eave type, gable-end type or any combination of them, and shall be
distributed,
(a) uniformly on opposite sides of the building,
(b) with not less than 25% of the required openings located at the top of the space, and
(c) with not less than 25% of the required openings located at the bottom of the space.
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For the requirement of (c), are holes in perforated soffit vinyl panels counted as vent openings? And how to calculate the area of holes?
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9.19.1.2. Vent Requirements
....
(3) Required vents are permitted to be roof type, eave type, gable-end type or any combination of them, and shall be
distributed,
(a) uniformly on opposite sides of the building,
(b) with not less than 25% of the required openings located at the top of the space, and
(c) with not less than 25% of the required openings located at the bottom of the space.
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For the requirement of (c), are holes in perforated soffit vinyl panels counted as vent openings? And how to calculate the area of holes?