(A) (1) No sign shall be placed upon the roof of any building so as to prevent the passage from one part of the roof to any other part thereof, or interfere with the openings in such roof.
(2) No signboard that is placed upon the roof of any building shall project beyond the edge of the roof in any direction.
(3) All roof signs shall be so constructed as to leave a clear space of not less than five feet between the roof level and the lowest part of the structure, and at least five feet clearance between the vertical supports thereof.
(4) Every roof sign shall be set back at least four feet from the face of any front or rear wall.
(5) No roof sign structure having a tight, closed or solid surface shall be, at any point over 20 feet above the roof level.
(6) Roof sign structures, not having a tight, closed or solid surface, may be erected upon a fireproof building to a height not exceeding 50 feet above the roof level, and upon non-fireproof buildings to a height not to exceed 40 feet, above the roof level, but the surface and portions of the structure covered and exposed to wind pressure shall not exceed 30% of the area thereof.
(7) All such signs 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.
(B) Every roof sign shall be constructed entirely of steel construction, including the uprights and braces of the same, excepting only ornamental molding and buttons behind the steel facing, and the decorative latticework may be of wood construction. All roof signs must be so constructed as to withstand a wind pressure of not less than 40 pounds to the square foot of area subject to such pressure, and when erected upon buildings which are not constructed entirely of fireproof material, the bearing plates of the signboard shall bear directly upon the masonry walls or upon steel girders which are supported on masonry walls and intermediate columns in buildings.
(2005 Code, § 66-7) Penalty, see § 10.99