No person shall erect, or cause to be erected, or place within the Fire Zone of the city, any building or part thereof unless the entire outside walls are constructed of stone, brick, cement, hardboard or “Masonite type” siding, or other hard or incombustible material, and roofed with slate, tin, zinc, iron, cement, asbestos, magnesia, asphalt or other fireproof roofing; nor rebuild any wooden building which becomes damaged by fire or otherwise or decayed to the extent to 50% or more of the value thereof, and no building shall be repaired so as to be raised higher or occupy a greater space than before such repair.
(Prior Code, § 2-1-3)