13-108-060 Construction requirements.

   (a)   Construction shall comply with requirements of Chapters 13-48 and 13-60 applying to storage units except that in garages of any type of construction all floors and ramps accessible to motor vehicles and all structural members supporting such floors shall be of Type I-A construction.

   (b)   When a basement is provided in a garage building, the floor construction over the basement and all structural members supporting such floor construction shall be of Type I-A construction.

   (c)   When a garage is located in an institutional use the four-hour fire resistive unpierced separation shall be protected with car stops approved by the building commissioner.

(Prior code § 59-3.3; Amend Coun. J. 9-13-89, p. 4604; Amend Coun. J. 3-5-03, p. 104990, § 25; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1)

13-108-070 Height and area limitations.

   Height and area limitations shall comply with Sections 13-48-010 and 13-48-050.

(Prior code § 59-3.4)

13-108-080 Heating.

   (a)   Enclosures. Heating plants, other than approved direct-fired unit heaters, shall be separated from all garage space by walls providing fire resistance of not less than four hours and by floors and ceilings providing fire resistance of not less than two hours. Openings in walls except as required for pipes and ducts shall be limited to one means of access which shall be through a vestibule protected on each side with a self- closing Class A fire door.

   (b)   Equipment. Except as provided in paragraphs (c) and (d), garage heating shall be by means of radiation or convection from hot water, vapor, or steam heating systems of which the boilers or devices containing combustion chambers and the fuel storage spaces shall be separated from every garage space as required in paragraph (a).

   (c)   Gas or oil unit heaters. Gas fired or oil fired unit heaters, subject to the following provisions, shall be permitted in garages:

      (1)   The flames shall be protected from draughts of air and contact with combustible materials.

      (2)   Unit heaters shall be so installed that the bottom of the heater shall not be less than eight feet above the floor. They shall be constructed and arranged to conform to the requirements of the “Standard for Garages, N.F.P.A. Pamphlet No. 88, July 1957”.

      (3)   Direct-fired unit heaters specifically approved for use in garages in the “Gas and Oil Equipment List, Underwriters – Laboratories, Inc., November, 1958" shall be considered acceptable under the provisions of this section.

      (4)   Infra-red gas fired self-contained heaters complying with the provisions of Chapter 18-28 of this Code and specifically approved for use in garages in accordance with Standards as published in Underwriters Laboratories, Inc. “Gas and Oil Equipment List”, current edition, and in American Gas Association's “Directory of Certified Appliances and Accessories”, current edition. All minimum clearances shall be maintained as recommended in these Standards.

   (d)   Electric Unit Heaters. Electric unit heaters constructed and installed to conform to the Underwriters' Laboratories, Inc., “Standards for Safety – Electric Heating Appliances UL 499, Sixth Edition, August, 1956" shall be permitted in garages.

(Prior code § 59-3.5; Amend Coun. J. 11-9-16, p. 36266, § 23)

13-108-090 Ventilation.

   Garages shall be provided with mechanical ventilation complying with the requirements of Chapter 18-28.

(Prior code § 59-3.6; Amend Coun. J. 11-9-16, p. 36266, § 23)

13-108-100 Exits.

   Pedestrian exits shall be provided complying with the requirements of Chapter 13-160, applying to storage units, except that a vehicle ramp may be substituted for not more than one required means of vertical exit and one vehicle door may be substituted for not more than one exterior exit door.

(Prior code § 59-3.7)