23.50A.160

A. Rooftop features. Where a height limit applies to a structure, the provisions in this subsection 23.50A.160.A apply to rooftop features: 1. In all industrial zones, vent stacks, flagpoles, and religious symbols for religious institutions are exempt from height limits, except as regulated in the Airport Height Overlay District regulations at Chapter 23.64 , provided they are a minimum of 10 feet from any side or rear lot line. 2. In all industrial zones, open railings, planters, skylights, clerestories, parapets, and firewalls may extend 4 feet above the applicable height limit with unlimited rooftop coverage. Insulation material, rooftop decks and other similar features, or soil for landscaping and green roofs located above the structural roof surface, may exceed the maximum height limit by up to 2 feet if enclosed by parapets or walls that comply with this subsection 23.50A.160.A.2. 3. In all industrial zones, wind-driven power generators may extend up to 15 feet above the applicable height limit, with unlimited rooftop coverage. 4. Additional height is permitted for specified rooftop features according to this subsection 23.50A.160.A.4. a. The following rooftop features may extend up to 30 feet above the applicable height limit in all industrial zones, subject to the limits of subsection 23.50A.160.A.4.b: 1) Solar collectors; 2) Stair and elevator penthouses; 3) Greenhouses and solariums; 4) Mechanical equipment; and 5) Minor communication utilities and accessory communication devices, except that height is regulated according to Section 23.57.015 . b. The combined total coverage of all features listed in subsection 23.50A.160.A.4.a is limited to 35 percent of the roof area, or 60 percent of the roof area if the total includes greenhouses. 5. Rooftop screening. In all industrial zones rooftop equipment is subject to the following screening requirements. a. Heating, ventilating, air conditioning or other wall or rooftop mechanical equipment shall be located and directed away from adjacent residential property. b. Screening shall be provided and shall be of a design and material which is compatible with the structure and shall be as high as the equipment to be screened and shall completely surround the equipment. B. Structures existing prior to June 1, 2023, that exceed the height limit of the zone may add the rooftop features listed as conditioned in subsection 23.50A.160.A. The existing roof elevation of the structure is considered the applicable height limit for the purpose of adding rooftop features. C. Covered rooftop recreational space of a building existing as of December 31, 1998, when complying with the provisions of subsection 23.50A.040.E, shall not be subject to the limits on maximum structure heights contained in subsection 23.50A.160.A.2. ([Renumbered from 23.50A.016]; Ord. 126862 , § 8, 2023.)