The Building Inspector may order the removal of any sign that is not maintained in accordance with the provisions of this chapter. 
   (a)   Maintenance.  All signs for which a permit is or is not required, together with all their supports, braces, buoys and anchors, shall be kept in repair in accordance with the provisions of this chapter and related chapters; and when not galvanized or constructed of approved corrosion-resistive noncombustible materials shall be painted when necessary to prevent corrosion.
   (b)   Housekeeping.  It shall be the duty and responsibility of the owner or lessee of every sign to maintain the immediate premises occupied by the sign in a clean, sanitary and healthful condition.
      (2004 Code)