For roof ventilation in California residential construction, what is the minimum net free ventilating area required when both intake and exhaust ventilation are provided?
Correct Answer
C) 1 square foot for every 300 square feet of attic floor area
California Residential Code Section R806.2 allows the ventilation ratio to be reduced to 1:300 when a balanced system of intake and exhaust ventilation is provided, with intake vents in the lower portion of the roof and exhaust vents at or near the ridge.
Why This Is the Correct Answer
California Residential Code Section R806.2 allows the ventilation ratio to be reduced to 1:300 when a balanced system of intake and exhaust ventilation is provided, with intake vents in the lower portion of the roof and exhaust vents at or near the ridge.
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