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ceiling area
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House roof vent area required 1/300 or 1/150 of the insulated ceiling area
As per Ontario Building Code, house roof vent area shall be 1/300 or 1/150 of the insulated ceiling area. This house seems to be about 3,000 square feet, which would have about 1,500 square feet insulated ceiling area or minimum 1,000 square feet insulated ceiling area , while it doesn't seem to...