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Title: Section 1017  •  Size: 10782

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1017.1 Definitions. For the purpose of this section, the following definitions apply:

INTERIOR ROOM is a room whose only exit is through an adjoining or intervening room which is not an exit corridor.

ROOM is a space or area bounded by any obstructions to exit passage which at any time enclose more than 80 percent of the perimeter of the area. In computing the unobstructed perimeter, openings less than 3 feet (914 mm) in clear width and less than 6 feet 8 inches (2032 mm) high shall not be considered.

SEPARATE EXIT SYSTEM is a path of exit travel separated in such a manner from other required exits as to provide an atmospheric separation which precludes contamination of both paths by the same fire.

1017.2 Separate Exit Systems Required. Every room with an occupant load of more than 300 shall have one of its exits into a separate exit system. When three or more exits are required from a room, no more than two required exits shall enter into the same exit system.

1017.3 Travel Distance.

1017.3.1 In rooms. The distance from any point in a room shall not be more than 75 feet (22 860 mm) from an exit corridor, an enclosed stairway or the exterior of the building.

EXCEPTIONS: 1. In buildings not more than two stories in height and protected throughout with smoke detectors, the distance may be increased to 90 feet (27 432 mm).

2. In buildings protected throughout by an automatic sprinkler system, the distance may be increased to 110 feet (33 528 mm).

1017.3.2 From any location. All portions of unsprinklered buildings shall not be more than 150 feet (45 720 mm) from either an exterior exit door, a horizontal exit, an exit passageway or an enclosed stairway measured along the line of travel. In a building protected throughout with an automatic sprinkler system such distance may be increased to 225 feet (68 580 mm). In buildings not more than two stories in height protected throughout with smoke detectors, the distance may be increased to 175 feet (53 340 mm).

1017.4 Exits through Adjoining Rooms. Interior rooms may exit through adjoining or intervening rooms, provided the total travel distance through such rooms to an exit corridor does not exceed that specified in Section 1017.3.1 and is a direct, obvious and unobstructed path of travel. Such paths of exit travel shall not pass through kitchens, storerooms, restrooms, closets, laboratories using hazardous materials, industrial shops or other similar places.

Foyers and lobbies constructed as required for exit corridors shall not be construed as adjoining or intervening rooms.

When the only means of exit from a room is through an adjoining or intervening room, smoke detectors shall be installed throughout the area of the common atmosphere through which the exit must pass. The detectors shall actuate alarms audible in the interior room and shall be connected to the school fire alarm system.

EXCEPTIONS: 1. When the aggregate occupant load of the interior room or rooms is 10 or less.

2. When the enclosures forming interior rooms are less than two thirds of the floor-to-ceiling height and do not exceed 8 feet (2438 mm).

3. Rooms used exclusively for mechanical and public utility service to the buildings.

1017.5 Corridors and Exterior Exit Balconies. Corridor walls and ceilings shall be of not less than one-hour fire-resistive construction with openings protected as required in Section 1005.8.

EXCEPTION: When each room used for instruction has at least one exit door directly to the exterior at ground level and when rooms used for assembly purposes have at least one half of the required exits directly to the exterior ground level, one-hour fire-resistive construction of corridor walls and ceilings is not required.

Any change in elevation of less than 2 feet (610 mm) in a corridor or exterior exit balcony shall be by means of ramps.

The width of a corridor in a Group E, Division 1 Occupancy shall be the width required by Section 1003, plus 2 feet (610 mm), but not less than 6 feet (1829 mm).

EXCEPTION: When the total number of occupants served is less than 100, the corridor may be 44 inches (1118 mm) wide.

1017.6 Exit Serving Auditoriums in Group E, Division 1 Occupancy. An exit serving an auditorium and other rooms need provide only for the capacity of whichever requires the greater width if the auditorium is not to be used simultaneously with the other rooms.

1017.7 Laboratories. Occupants in laboratories having an area in excess of 200 square feet (18.6 ) shall have access to at least two exits from the room and all portions of the room shall be within 75 feet (22 860 mm) of an exit.

1017.8 Stairs. Each floor above or below the ground floor level shall have not less than two exit stairs and the required exit width shall be equally divided between such stairs, provided that stairs serving an occupant load of 100 or more shall be not less than 5 feet (1524 mm) in clear width.

EXCEPTION: This section does not apply to rooms used for maintenance, storage and similar purposes.

1017.9 Doors. The width of exit doors shall be sufficient to accommodate the occupant load served.

1017.10 Basement Rooms. Exit stairways from a basement shall open directly to the exterior of the building without entering the first floor corridor.

1017.11 Panic Hardware. Exit doors from rooms having an occupant load of 50 or more and from corridors shall not be provided with a latch or lock unless it is panic hardware.

1017.12 Fences and Gates. School grounds may be fenced and gates therein equipped with locks, provided safe dispersal areas are located not less than 50 feet (15 240 mm) from the buildings. Dispersal areas shall be sized to provide an area of not less than 3 square feet (0.28 ) per occupant. Gates shall not be installed across corridors or passageways leading to such dispersal areas unless they comply with exit requirements. See Section 1021 for exits from dispersal areas.

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