(a) The owner of an historic landmark or a contributing building or structure within an historic district shall comply with all laws and regulations governing the maintenance of real property. The buildings or structures shall be preserved against decay and deterioration and shall be made and kept free from structural defects through prompt correction of defects, such as:
(1) Facade or facade elements that may fall and injure persons or property;
(2) Deteriorated or inadequate foundation, defective or deteriorated flooring or floor supports, deteriorated walls, or other vertical structural supports;
(3) Members of ceilings, roofs, ceiling and roof supports, or other horizontal members that sag, split, or buckle due to defective material or deterioration;
(4) Deteriorated or ineffective waterproofing of exterior walls, roofs, foundations, or floors, including broken windows or doors;
(5) Defective or insufficient weather protection for exterior wall covering, including lack of paint or weathering due to lack of paint or other protective covering; or
(6) A fault or defect in the building or structure that renders it structurally unsafe or not properly watertight.