The height limitations contained in this title do not apply to spires, belfries, cupolas, chimneys, antennas, water tanks, ventilators, elevator housing, or other similar structures placed above the roof level which are required for the operation and maintenance of a building. [Ord. FY2018-17 §2, 2018; Ord. 83-71-O §1, 1983. Formerly §17.39.010].