(A) No sign shall be placed upon the roof of any building so as to prevent the free passage from one part of the roof to any other part thereof or so as to interfere with the openings in the roof; and no sign that is placed upon the roof of any building shall project beyond the outer edge of the wall of such building in any direction. All roof signs shall be so constructed as to leave a clear space of not less than four feet between the roof level and the lowest part of the sign. Every roof sign shall be set back at least three feet from the face of any side, front or rear wall; and, if the sign is illuminated, overhead lighting reflectors may project six feet beyond the building line, but in no case shall the reflector be more than six feet from the sign which it is designed to illuminate.
(B) All roof signs shall be entirely of incombustible material, including the uprights, supports and braces thereof, except ornamental molding and battens behind the steel facings and decorative latticework may be of wooden construction. All roof signs shall be constructed as to withstand a wind pressure of not less than 30 pounds per square foot of superficial area subject to such pressures, and when erected upon a building, the roof of which is not constructed of fireproof material, all bearing plates of the sign shall bear directly or indirectly upon the masonry walls thereof or upon steel girders or metal columns which are of sufficient strength to withstand the live and dead load stresses of the roof sign.
(C) No roof sign having a tight, closed or solid surface shall be over 29 feet above the roof level at any point; and no roof sign with a tight, closed, or solid surface shall be erected on fireproof buildings to a height of not exceeding 75 feet above the roof level and upon nonfireproof buildings to a height not exceeding 50 feet above the roof level. The solid portions of such structures shall not exceed 40% of the superficial area thereof. All such signs which are erected on the roof of a fireproof building shall be thoroughly secured to the building upon which they are installed, erected, or constructed by iron or metal anchors, bolts, supports, chains, stranded cables, steel rods, or braces. All roof signs erected on nonfireproof buildings shall be so erected that the live and dead load stresses shall not in any way affect the building, but the sign shall be carried on steel girders and columns that will resist any stresses due to the wind pressure and load of the signs. The sign shall be thoroughly secured and anchored by iron or metal anchors, bolts, supports, chains, standard cables, steel rods, or braces.
(D) Every roof sign and all the supports, braces, guys, and anchors thereof shall be kept in repair, and unless galvanized or noncorroding material is used, the structural members shall be thoroughly and properly painted at least once every two years.
(E) The Administrator may order the removal of roof signs that are not maintained in accordance with this section.
(Ord. 29-1977, passed 10-17-77) Penalty, see § 150.999