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Unformatted text preview: A Occupancies rubbish
and linen chutes shall terminate in rooms separated from the remainder of the building by a One-Hour
Fire-Resistive Occupancy Separation. Openings in to the chutes shall not be located in required exit
corridors or stairways.
(d) Air Ducts. Air ducts passing through a floor shall be enclosed in a shaft. The shaft shall be
as required in this Code for vertical openings. Dampers shall be installed where ducts pierce the shaft
enclosure walls. Air ducts in Group A Occupancies need not be enclosed in a shaft it conforming to the
mechanical provisions of this Code.
SECTION 1205. Floor Construction
(a) Floors shall be of such materials and construction as specified under Chapter 5 Fire Zones
and Fire-Resistive Standards and under Chapter 6 - Types of Construction.
(b) All floors shall be so framed and secured into the framework and supporting walls to form an
integral part of the whole building.
(c) The types of floor construction used shall provide means to keep the beam and girders from
SECTION 1206. Roof Construction and Covering
(a) Roof Covering. Roof covering for all buildings shall be either fire-retardant or ordinary
depending upon the fire-resistive requirements of the particular type of construction. The use of
combustible roof insulation shall be permitted in all types of construction provided it is covered with
approved roof covering applied directly thereto.
(b) Roof Trusses. All roofs shall be framed and tied into the framework and supporting walls so
as to form an integral part of the whole building. Roof trusses shall have all joints well fitted and shall
have all tension members well tightened before any load is placed in the truss. Diagonal and sway
bracing shall be used to brace all roof trusses. The allowable working stresses of materials in trusses
shall conform to this Code. Camber shall be provided to prevent sagging.
(c) Attics (1) Access. An attic access opening shall be provided in the ceiling of the top floor of
buildings with a combustible ceiling or roof construction. The opening shall be located in a corridor or
hallway of buildings of three or more storeys in height, and readily accessible in buildings of any height.
An opening shall not be less than 600 millimeters square or 600 millimeters in diameter. The minimum
clear headroom of 800 millimeters shall be provided above the access opening. For ladder requirements,
refer to the Philippine Mechanical Engineering Code.
(2) Area Separation. Enclosed attic spaces of combustible construction shall be divided into
horizontal areas not exceeding 250 square meters by fire-resistive partitions extending from the ceiling
to the roof. Except, that where the entire attic is equipped with approved automatice fire-extinguishing
system, the attic space may be divided into areas not to exceed 750 square meters. Openings in the
partitions shall be protected by self-closing doors.
(3) Draft Stops. Regardless of the type of construction, draft stops...
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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