9-3-5: REPAIRS AND MAINTENANCE:
   A.   Limited Repairs Allowed: On any building devoted in whole or in part to any nonconforming use, work may be done on ordinary repairs, or on repair or replacement of nonbearing walls, fixtures, wiring, or plumbing; provided, that the cubic content of the building as it existed at the time of passage or amendment of the ordinance codified herein shall not be increased.
   B.   Strengthen To Safe Condition: Nothing in this title shall be deemed to prevent the strengthening or restoring to a safe condition of any building or part thereof declared to be unsafe by any official charged with protecting the public safety, upon order of such official. (1983 Code § 11-1-8E)