Building Code of the Philippines(1)

Between landings shall have identical dimensions

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Unformatted text preview: very landing shall be a dimension measured in the direction of travel equal to the width of the stairway. Such dimension need not exceed 1.20 meters when the stairs has a straight run. Landings when provided shall not be reduced in width by more than 100 millimeters by a door when fully open. (6) Basement Stairways. Where a basement stairway and stairway to an upper storey terminate in the same exit enclosure, an approved barrier shall be provided to prevent persons from continuing on to the basements. Directional exit signs shall be provided as specified in this Code. (7) Distance Between Landings. There shall be not more than 3.60 meters vertical distance between landings. (8) Handrails. Stairways shall be handrails on each side and every stairway required to be more than 3.00 meters in width shall be provided with not less than one intermediate handrail for each 3.00 meters of required width. Intermediate handrails shall be spaced approximately equal within the entire width of the stairway. Handrails shall be placed not less than 800 millimeters nor more than 900 millimeters above the nosing of treads, and ends of handrails shall be returned or shall terminate in newel posts or safety terminals: Except, in the following cases: Stairways 1.10 meters or less in width and stairways serving one individual dwelling unit in Group A or B Occupancies may have one handrail, except that such stairway, open on one or both, sides shall have handrails provided on the open side or side: or stairways having less than four risers need not have handrails. (9) Exterior Stairway Protection. All openings in the exterior wall below or within 3.00 meters, measured horizontally, of an exterior exit stairway serving a building over two storeys in height shall be protected by a self-closing fire assembly having a three-fourths hour fire-resistive rating: Except, that openings may be unprotected when two separated exterior stairways serve an exterior exit balcony. (10a) Stairways Construction-Interior. Interior stairways shall be constructed as specified in this Code. Where there is enclosed usable space under the stairs the wall and soffits of the enclosed space shall be protected on the enclosed side as required for one-hour fire resistive construction. (10b) Stairway Construction-Exterior. Exterior stairways shall be of incombustible material: Except, that on Type III buildings which do not exceed two storeys in height, which are located in less fire-restrictive Fire Zones, as well as on Type I buildings which may be of wood not less than 50 millimeters in nominal thickness. Exterior stairs shall be protected as required for exterior walls due to location on property as specified in this Code. Exterior stairways shall not project into an area where openings are required to be protected. Where there is enclosed usable space under stairs, the walls and soffits of the enclosed space shall be protected on the enclosed side as required for one-hour fireresistive construction...
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