15-28-530 Ventilation.

   Every highly flammable material storage room and every picker or shredder room shall be provided with one or more windows, skylights or other ventilating opening facing a public way, private alley, yard or other open space not less than 15 feet wide, with closures arranged to open for natural ventilation and having a combined area of not less than five percent of the total wall area of the room. The required combined area of openings which are arranged to open for ventilation shall be provided with sashes or dampers, or other closures which shall be hung overbalanced and held in place in such manner that an explosion or fire within the room will cause such sash, damper or closure to open for its full area; provided, however, that in lieu of such requirements it shall be permissible to provide a vent flue or flues extending directly to the outside air, which shall be used solely for the purposes of ventilating such room, which shall have a combined area of not less than five percent of the total wall area of the room, with an inclosure of the same fire-resistive value as is required for the inclosures of the room, and equipped with a normally closed noncombustible trap door arranged to open automatically in case of explosion or fire within the room. No such window, skylight, ventilating opening or vent flue required by this section shall be nearer than four feet, six inches to any other building or structure on the same premises or to any interior lot line.

(Prior code §  92-42)

15-28-540 Fire protection equipment.

   Where a supply of steam at not less than five pounds pressure is available, a steam jet shall be installed in every picker or shredder room with a control valve outside of the room. Where such a supply of steam is not available, a standard two and one-half gallon fire extinguisher shall be kept outside the entrance door to every such room and adjacent thereto, with an opening 12 inches square provided through the inclosure of the room, through which the nozzle of the extinguisher may be directed into the room. Such opening shall be provided with a noncombustible cover, removable from the outside.

(Prior code §  92-43)

15-28-550 Instructions.

   Every valve required for the control of the discharge of steam through a steam jet in a picker or shredder room, shall be marked with a metal sign which shall bear the words “STEAM FIRE LINE”. Every such sign shall meet the requirements of Section 15-28-120 for lettering.

(Prior code §  92-44)

15-28-560 Heating.

   In every picker or shredder room, all heating shall be by steam or hot water radiation equipped with guards as provided for a standard drying room.

(Prior code §  92-45)

15-28-570 General construction requirements.

   A highly flammable material storage building may be of any type of construction permitted under the provisions of this Code for a storage unit.

(Prior code §  92-46)

15-28-580 Danger signs.

   Every building or room for the use or storage of highly flammable materials, shall have the words “FLAMMABLE – KEEP FIRE AWAY” painted in a conspicuous position on the outside thereof. Such wording shall be in plainly legible bright red letters on a white background with letters not less than six inches high and with the principal strokes thereof not less than three-fourths inch in width.

(Prior code §  92-47)