The following structures or parts thereof are exempt from the height limitations set forth in the zoning districts:
(A) Agricultural buildings: barn, silo, windmill, but not including dwellings;
(B) Chimneys, smokestacks, penthouse, spires, flagpoles, ventilators, skylights, derricks, conveyors, and cooling towers;
(C) Radio and television antennas and towers, observation towers, power transmission towers, and cellular communication towers;
(D) Water tanks and standpipes; and
(E) Other similar and necessary mechanical appurtenances pertaining to and necessary to the permitted uses of the districts in which they are located; provided that they are not used for human occupancy.
(Ord. passed 2-3-2011, § 2.26.090)