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Unformatted text preview: The number of exits required from any storey of a building shall be determined by using
the occupant loads of floors which exit through the level under consideration as follows: 50 percent of
the occupant load in the first adjacent storey above (and the first adjacent storey below, when a storey
below exits through the level under consideration) and 25 percent of the occupant load in the storey
immediately beyond the first adjacent storey. The maximum number of exits required for any storey
shall be maintained until egress is provided from the structures. For purposes of this Section basement
or cellars and occupied roofs shall be provided with exits as required for storeys. Floors above the
second storey, basements and cellars used for other than service of the building shall have not less than
(2) Width. The total width or exits in meters shall not be less than the total occupant load
served divided by 165. Such width of exits shall be divided approximately equally among the separate
exits. The total exit width required from any storey of a building shall be determined by using the
occupant load of that storey plus the percentage of the occupant loads of floors which exits through the
level under consideration as follows: fifty (50) percent of the occupant load in the first adjacent storey
above (and the first adjacent storey below when a storey below exits through the level under
consideration) and twenty five percent of the occupant load in the storey immediately beyond the first
adjacent storey. The maximum exit width from any storey of a building shall be maintained.
(3) Arrangement of Exits. If only two exits are required they shall be placed a distance apart
to not less than one-fifth of the perimeter of the area served measured in a straight line between exits.
Where three or more exits are required they shall be arranged a reasonable distance apart so that if one
becomes blocked, the others will be available.
(4) Distance to Exists. No point in a building without a sprinkler system shall be more than
45.00 meters from an exterior exit door, a horizontal exit, exit passageway, or an enclosed stairway,
measured along the line of travel. In a building equipped with a complete automatic fire extinguishing
system the distance form exits may be increased to 60.00 meters. (c) Doors. The provisions herein shall apply to every exit door serving an area having an
occupant load of more than 10, or serving hazardous rooms or areas.
(1) Swing. Exit door shall swing in the direction of exit travel when serving any hazardous
areas or when serving an occupant load of 50 or more. Double acting doors shall not be used as exits
serving a tributary occupant load of more than 100; nor shall they be used as a part of fire assembly, nor
equipped with panic hardware . A double acting door shall be provided with a view panel of not less
than 1,300 square centimeters.
(2) Type of Lock or Latch. Exit door shall be openable from the inside without the use of a
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This note was uploaded on 09/22/2013 for the course ARIDBE AR taught by Professor Any during the Fall '12 term at Mapúa Institute of Technology.
- Fall '12