15-8-540 Mansard and sloping roofs.

   Mansard or sloping roofs, the plant of which forms an angle of more than 60 degrees but not more than 75 degrees with the horizontal, shall be classified as roofs and shall comply with all applicable requirements of this Code, except that such roofs, erected on buildings more than 40 feet in height, of Types III-A, III-B or III- C construction shall be constructed of noncombustible materials or fire-retardant-treated wood, providing fire resistance of not less than one hour. Such use shall comply with Section 13-128-100(a) if applicable.

(Prior code §  62-11.3)

15-8-550 Towers.

   (a)   Towers are defined as structures, including spires, domes or cupolas, extending above the roof of a building and used only for architectural embellishment or for housing bells, clocks and similar installations.

   (b)   Every tower shall be of a type of construction not less fire-resistant than required for the building on which it is erected and when exceeding the height limitations for the building as established in Section 13-48-030.

      (1)   Towers exceeding 60 feet in height above grade shall be constructed of and supported by Types I- A, I-B or I-C construction.

      (2)   Towers exceeding 25 feet in height above the roof on which they are erected or exceeding 200 square feet in area at any horizontal section shall be constructed of and supported by noncombustible materials and shall be separated from the building below by a floor or roof deck providing fire resistance of not less than one hour.

(Prior code §  62-11.4)

15-8-560 Miscellaneous roof structures.

   Miscellaneous roof structures, including dormers, bulkheads, scuttles and similar structures shall be constructed of material not less fire-resistant than required for the roof construction on which they are erected.

(Prior code §  62-11.5)