No building shall be erected, converted, enlarged, reconstructed or structurally altered to exceed the height limit hereinafter established for the district in which the building is located, except the 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, steeples, stage lofts and screens, flag poles, chimneys, smokestacks, individual domestic radio and television aerials and wireless masts, water tanks or similar structures may be erected above the height limits herein prescribed. No such structure may be erected more than fifteen feet in excess of height limits of the district in which it is located unless otherwise specified, nor shall such structure have a total area greater than 10% of the roof area of the building; nor shall such structure be used for any residential purpose or any commercial or industrial purpose other than a use incidental to the main use of the building.
(Ord. 1989-81. Passed 1-2-90.)