![]() ![]() ![]() American Society of Mechanical Engineers (ASME) A17.1/CSA B44-2013, Safety Code for Elevators and Escalators, Section 2.11.6.3 not only requires unrestricted egress from the elevator, but also limits obstructions preventing firefighters from visually observing the elevator landing/lobby. NFPA 101 contains similar requirements where elevator lobbies are provided. Other than hoistway doors and the elevator car door, Section 3002.6, “Prohibited Doors,” prohibits doors at the point of access to an elevator car unless such doors are readily openable from the car side without special knowledge or effort. In either case, doors protecting openings in elevator lobbies are required for corridors. Otherwise, elevator lobbies are required to be constructed as fire partitions. Elevator lobbies are required to be constructed as smoke partitions when sprinklers are installed throughout the building. IBC Section 3006, “Elevator Lobbies and Hoistway Opening Protection,” requires shaft enclosures and elevator lobbies when the hoistway connects more than three stories. It is a disadvantage since fire- and smoke-protective curtains may have difficulties in meeting these requirements. When the curtains are used as doors, they have to meet these requirements. Unless otherwise permitted specifically, single fire doors and both leaves of pairs of side-hinged swinging fire doors require an active latch bolt to secure the door when closed. IBC Section 716.5.9, “Door Closing,” and NFPA 101 Section 7.2.1, “Door Openings,” require fire doors to be latching and self- or automatic-closing. The National Fire Protection Association (NFPA) 13-2016, Standard for the Installation of Sprinkler Systems, defines draft curtains as a continuous material protruding downward from a ceiling to create a reservoir for collecting smoke and heat. ![]()
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