Section 1605
SECTION 1605. Light-Transmitting Panels in Monitors and Sawtooth Roofs. (a) General. Where a fire-resistive rating is not required for the roof structure, and in all buildings provided with an approved automatic fire-extinguishing system, approved plastics may be used with or without such as the light- transmitting medium in monitors and sawtooth: Except, that plastics used in monitors or sawtooth roofs of Type II Construction shall be of materials appropriate to be used according to flame-spread characteristics. (b) Allowable Area. The area of individual plastic glazing used in monitors and sawtooth glazing shall not exceed 15.00 square meters. The total aggregate area of plastics used in skylights, monitors, and sawtooth glazing shall not exceed twenty percent of the floor area of the room or occupancy sheltered. (c) Area Separation. The area of such plastic panels shall be separated from each other by a section of incombustible material or by a section of the roofing material of the structure not less than 1.50 meters in length. The lower edge of the plastic material shall be at least 150 millimeters above the surface of the adjoining roof surface.