909.5.1 Total leakage area.
BC § 909.5.1
Total leakage area of the barrier is the product of the smoke barrier gross area multiplied by the allowable leakage area ratio, plus the area of other openings such as gaps around doors and operable windows.
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What is NYC BC § 909.5.1?
Quick Answer
This section defines the total leakage area of a smoke barrier, calculated by multiplying the gross area of the barrier by the allowable leakage area ratio, and adding the area of additional openings like gaps around doors and operable windows. Applies to building owners responsible for smoke barrier compliance.
General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.
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