Structural Projections. Chimneys, cooling towers, elevator headhouses, fire towers, grain elevators, monuments, stacks, stage towers, or scenery lofts, tanks, water towers, ornamental towers, and spires, church steeples, radio and television towers or necessary mechanical appurtenances, usually required to be placed above the roof level and not intended for human occupancy, are not subject to the height limitations contained in the district regulations, except that such structural projections shall not exceed the height regulations of the district in which the structure is situated by more than fifteen percent (15%), except as indicated below.
1. Structural projections exceeding the above height limitations shall be considered as conditional uses and shall be processed in accordance with Article
X, Special Procedures and Regulations of this Chapter, except in no event shall a radio aerial or television antenna support extend more than twenty-five (25) feet above the ridge of a roof in any residential district.