15-28-050 Construction requirements.

   Type IA, IB, IC, II, IIIA, IIIB or IIIC construction shall be used for any hazardous chemical storage building. Every such building of Type IIIA construction shall be not more than two stories in height. Every such building of Type IIIB or IIIC construction shall not be more than one story in height and shall have no mezzanine. Every such building of any type of construction shall be without any basement except a basement provided and used solely for the purpose of a heating plant for the building which shall be separated from every other part of the building by a fire wall and shall have no doorway, window or other opening between such space and any other part of the building. Every such building shall be so constructed as to be dry.

(Prior code §  92-5)

15-28-060 General safety clearances.

   Every building hereafter designed, erected, altered or converted for the purpose of storing more of any hazardous chemical than the limited quantity provided for such chemical in Section 15-28-040 shall be isolated by a safety clearance of not less than 100 feet except as otherwise provided by this section.

   Class IA, IB or IC Construction. Every such hazardous chemical building of Type IA, IB or IC construction shall be isolated from any other building on the same premises by a safety clearance of not less than ten feet; provided, however, that such safety clearance shall not be required for any such building having no openings within ten feet of any openings in any other wall or building on the same premises, or for any such building which is separated from any adjoining buildings by a fire wall without openings therein.

   Types II, IIIA, IIIB or IIIC Construction. Every such hazardous chemical building of Type II, IIIA, IIIB or IIIC construction shall be isolated from any other building on the same premises by a safety clearance of not less than 20 feet; provided, however, that such safety clearance will not be required for any such building having no openings within ten feet of any openings in any other wall or building on the same premises or for any such building which is separated from any adjoining building by a fire wall without openings therein.

(Prior code §  92-6)

15-28-070 Floor area limit.

   No hazardous chemical room or storage building shall have a floor area of more than 600 square feet.

(Prior code §  92-7)

15-28-080 Ventilation.

   Every hazardous chemical room shall have means of natural ventilation or vent flues as required by Section 15-28-260 for material heating rooms; provided, however, that the combined area of ventilating openings which shall have closures arranged to open automatically in case of explosion or fire shall be not less than five percent of the total wall area of the room.

(Prior code §  92-8)

15-28-090 Sprinklers – Where prohibited.

   No sprinkler system shall be permitted in any hazardous chemical room or in any hazardous chemical storage building, where the chemical has the ability to react with water to produce substances or violent chemical reactions which increase the hazard. When the presence of water will not add to the hazard, a standard sprinkler system shall be required in such hazardous chemical room or building as directed in Chapter 15-16 of this Code.

(Prior code §  92-9)