13-60-130 Elevator framing – Exception to fire protection.

   Structural members or frames for elevators, located wholly within elevator shaft enclosures or in penthouses, shall not be required to be fire protected.

(Prior code § 49-9.2)

13-60-140 Lintels – Exception to fire protection.

   Lintels over masonry wall openings not exceeding five feet in clear width shall not be required to be fire protected.

(Prior code § 49-9.3)

13-60-150 Supporting wall facing – Fire protection provisions.

   Members, supporting wall facing which is not more than four and one-half inches in thickness and securely anchored or bonded to backing, shall not be required to be fire protected, provided that such members are properly supported by spandrel beams or lintels which are fire protected as required in Section 13-60-100.

(Prior code § 49-9.4)

13-60-160 Mezzanine – Fire protection provisions.

   In buildings of business, mercantile, industrial and storage occupancies, mezzanine floors and the supports thereof of noncombustible materials shall not be required to be fire protected; provided, that the aggregate area of such mezzanines shall not exceed ten percent of the floor area in the first story nor five percent of the floor area in any other story.

(Prior code § 49-9.5)

13-60-170 Basement construction – Fire-resistive requirements.

   Basement construction shall comply with the special fire-resistive requirements of Sections 13-60-180 to 13-60-200, inclusive.

(Prior code § 49-10)

13-60-180 Basement columns and bearing walls – Noncombustible materials required.

   In all buildings more than two stories and attic in height of Types III-B, III-C, and IV-A construction, all basement columns and basement bearing walls shall be of noncombustible materials or of heavy timber construction.

(Prior code § 49-10.1)

13-60-190 Sub-basement floor construction requirements.

   When more than one basement story is provided, the floor construction separating the basements from the first floor and all construction below that level shall be of Type I-A construction.

(Prior code § 49-10.2)

13-60-200 Floor construction.

   (a)   Except in single-family and two-family dwellings, floor construction over basements shall provide fire resistance of not less than one hour.

   (b)   In buildings of Types III-B, III-C, IV-A and IV-B construction, fire protection shall not be required for floor construction over unexcavated spaces below the first floor, nor for floor construction over basements in single-family dwellings.

(Prior code § 49-10.3)