No sign shall extend above the roof of the building to which it is attached except:
A. When it is attached to the side of a penthouse and does not extend above the roof of the penthouse; or
B. When it is attached to a parapet wall and does not extend above the top of the parapet wall nor more than three feet (3') above the adjacent roof level. (Ord. 80-O-1775, eff. 12-5-1980)