huangyhg

flow thru vent calculations for flood areas for buildings
ha do any one know how to calculate flow thru vent calculations for flood areas for buildings?

i believe fema requires 1 square inch of vent area per 1 square foot of enclosed floor area.
so if you had a house with 2400 sf you would need 2400 sq. inches of vent space or 16.667 sq. feet.
this would require about 4 - 2' x 2' vents.

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