Page 30 - PD 1096 BASIC LAW

The National Building Code (P.D. 1096)

(2) Surfaces to which veneer is attached shall be designed to support the additional
vertical and lateral loads imposed by the veneer.
(3) Consideration shall be given to differential movements of the supports including those
caused by temperature changes, shrinkage, creep, and deflection.
(4) Adhered veneer and its backing shall be designed to have a bond to the supporting
elements sufficient to withstand shearing stresses due to their weights including seismic
effects on the total assemblage.
(5) Anchored veneer and its attachment shall be designed to resist horizontal forces
equal to twice the weight of the veneer.
(6) Anchors supports and ties shall be non-combustible and corrosion-resistant.

SECTION 1204. Enclosure of Vertical Openings

(a) General. Vertical openings shall be enclosed depending upon the fire-resistive
requirements of a particular type of construction as set forth in this Code.
(b) Elevator Enclosures. Walls and partitions enclosing elevators and escalators shall be of
not less than the fire-resistive construction required under the Types of Construction. Enclosing walls
of elevator shafts may consist of wire glass set in metal frames on the entrance side only. Elevator
shafts extending through more than two storeys shall be equipped with an approved means of
adequate ventilations to and through the main roof of the building: Provided, that in those buildings
housing Groups F and G Occupancies equipped with automatic fire-extinguishing systems
throughout, enclosures shall not be required for escalators: Provided, further that the top of the
escalator opening at each storey shall be provided with a draft curtain. Such draft curtain shall
enclose the perimeter of the unenclosed opening and shall extend from the ceiling downward at least
300 millimeters on all sides. Automatic sprinklers shall be provided around the perimeter of the
opening and within a 600 millimeters of the draft curtain. The distance between the sprinkles shall not
exceed 1.80 meters center-to-center.
(c) Other Vertical Openings. All shafts, ducts, chutes, and other vertical openings not
covered in paragraph (b) above shall have enclosing walls conforming to the requirements specified
under the type of construction of the building in which they are located. In other than Group 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 into 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 if
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 as 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 lateral buckling.

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 so 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

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