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401.6.1 Wind-driven rain.
All exterior louvers for building ventilation systems shall conform to the requirements of Chapter 16 of the New York City Building Code, where applicable, and the following:
1. Comply with the requirements of AMCA 550. Louvers shall comply with the intrusion requirements of wind-driven rain without the use of a damper. Outdoor air intake openings located in exterior walls shall meet the provisions for exterior wall opening protectives in accordance with Chapter 16 of the New York City Building Code; or
2. Be installed on a plenum configured to intercept any wind-driven rain penetrating the louver and to prevent the rain from entering the building ductwork system. Such plenum shall be waterproofed and equipped with a drainage system to convey water penetrating the louver directly to the outdoors or in accordance with the New York City Plumbing Code.
402.1 General.
Natural ventilation of occupiable and habitable spaces shall comply with Chapter 12 of the New York City Building Code.
402.2 Reserved.
402.3 Reserved.
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