Exceptions. Penthouses or roof structures for the housing of elevators, stairways, tanks, ventilating fans or similar equipment required to operate and maintain the building, and fire or parapet walls, skylights, towers, church steeples, flagpoles, chimneys and other similar structures may be erected above the height limits herein prescribed, provided such structures are compatible with the surroundings.
Air conditioning units, electrical switch gear and panels, compressors, and similar mechanical and electrical equipment shall be enclosed within an enclosure architecturally compatible with the appearance of the building it serves.