Page 51 - PD 1096 BASIC LAW

The National Building Code (P.D. 1096)

CHAPTER 16

PLASTICS

SECTION 1601. Approved Plastics

Approved plastic materials shall be those which have a flame-spread rating of 225 or less and
a smoke density not greater than that obtained from the burning of untreated wood under similar
conditions when tested in accordance with generally accepted engineering practices. The products of
combustion shall be no more toxic than the burning of untreated wood under similar conditions.

SECTION 1602. Installation

(a) Structural Requirements – All plastic materials shall be of adequate strength and
durability to withstand the prescribed design loads. Sufficient and substantial technical data shall be
submitted to establish stresses, maximum unsupported spans, and such other information as may be
deemed necessary for the various thicknesses and forms used.

(b) Fastenings – Fastenings shall be adequate to withstand design loads and internal and
external stresses required of the assembly. Proper allowances of plastic materials in conjunction with
other materials with which it is assembled or integrated shall be provided.

SECTION 1603. Glazing of Openings

(a) Doors, sashes and framed openings in exterior walls of all buildings except Types IV and
V Constructions may be glazed or equipped with approved plastics: Provided, that:

(1) The wall in which such glazing is installed is so located that openings are not required
to be fire-protected.
(2) Except for Type I Construction, the location, size, and spacing of such glazed
openings do not exceed the values set forth by the Secretary.
(3) Plastics used in glazed openings for Type II Construction shall be materials
appropriate for use according to flame-spread characteristics and the location, size, and
spacing of the openings do not exceed the values set forth by the Secretary.

SECTION 1604. Skylights

(a) General – Approved plastics may be used in skylights installed on roofs of Types I, II or III
constructions and all buildings in these categories shall be equipped with an approved automatic fire-
extinguishing system in Groups A, B, C, E, F, J, H-3 and H-4 Occupancies: Except, that:
(1) Approved plastics may be used in any type of construction or occupancy as a fire
venting system when approved by the Building Official.
(2) Plastics may be used in approved skylights in Type II one-hour fire-resistive
construction which are located 300 millimeters or more above the lower flange of the ceiling.
The walls of the skylight well shall be no less fire-resistive than the adjacent ceiling.
(3) Where a fire-resistive ceiling is not required in one-storey buildings, approved plastics
may be used in skylights.

(b) Installation Requirements
(1) Except in Group A Occupancies, no skylight shall be installed within 3.00 meters of a
property line.
(2) The edges of dome-type skylights shall be properly flashed.
(3) Plastic skylights shall be separated from each other by at least 2.50 meters laterally
and 3.00 meters along the slope of the roof.

51