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Title: Section 336  •  Size: 4771

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336.1 General. Group R, Division 4 Occupancies shall be provided with exits as required by this section and Chapter 10 of this code.

336.2 Exits Required.

336.2.1 Number of exits. Every story, basement or portion thereof housing a Group R, Division 4 Occupancy shall have not less than two exits.

EXCEPTIONS: 1. Basements used exclusively for the service of the building may have one exit. For the purpose of this exception, storage rooms, laundry rooms, maintenance offices and similar uses shall not be considered as providing service to the building.

2. Storage rooms, laundry rooms and maintenance offices not exceeding 300 square feet (27.9 ) in floor area may be provided with only one exit.

336.2.2 Distance to exits. The maximum travel distance specified in Chapter 10 shall be reduced by 50 percent.

336.3 Corridor Width. Corridors shall be not less than 36 inches (914 mm) in width.

336.4 Stairways. Stairways shall be constructed as required by Section 1006 of this code.

EXCEPTION: In buildings that are converted to a Group R, Division 4 Occupancy, existing stairways may have an 8-inch-maximum (203 mm) rise, 9-inch-minimum (229 mm) run and may be 30 inches (762 mm) in width.

336.5 Emergency Exit Illumination. In the event of power failure, exit illumination shall be automatically provided from an emergency system. Emergency systems shall be supplied from storage batteries or an on-site generator set and the system shall be installed in accordance with the requirements of the Electrical Code.

336.6 Emergency Escape. Every sleeping room shall be provided with emergency escape or rescue facilities as required by Section 309.4 of this code.

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