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In any special room for flammable liquids, the door openings to other rooms or buildings shall be provided with noncombustible sills, raised not less than six inches above the floor or such special room. Where the total quantity of Class I liquids stored or handled in any room, does not exceed 200 gallons, such room shall have floors, walls and ceilings of not less than one-hour fire-resistive construction. Floors shall be arranged to drain toward the outside of the building. Where the total quantity of Class I flammable liquids stored or handled in any rooms exceeds 200 gallons, but does not exceed 400 gallons, all floors, walls and ceilings of such room shall be of not less than two-hour fire-resistive construction. Where the total quantity of Class I flammable liquids stored or used exceeds 400 gallons, but does not exceed 600 gallons, the floors, walls and ceilings of such room shall be of not less than three- hour fire-resistive construction. Where the total quantity of Class I flammable liquids stored or used exceeds 600 gallons, the floors, walls and ceilings of such room shall be of not less than four-hour fire-resistive construction.
Outside storage houses for the storage and handling of flammable liquids shall be constructed in accordance with this section. All door openings through the enclosures of such rooms into other rooms or buildings, shall have fire doors as required by Chapter 15-12 of this Code for such fire-resistive walls. The provisions of this paragraph do not apply to fuel oil storage tanks otherwise permitted by Section 15-24-270. Ventilation as required by Section 15-24-400 shall be provided.
(Prior code § 129.1-33)