Normal maintenance of a nonconforming building or a building containing a nonconforming use is permitted, including necessary non-structural repairs which do not tend to prolong the life of supporting members of a building, or structure, such as bearing walls, columns, beams or girders.  Incidental alterations are permitted which do not extend or intensify the nonconforming building or the nonconforming use.
(Ord. 540-89.  Passed 2-14-89; Ord. 1010-11.  Passed 4-11-11.)