No person shall occupy as owner-occupant or shall let to another for occupancy any dwelling, rooming unit, rooming house, dwelling unit, which does not comply with the following minimum standards for safe and sanitary maintenance:

A. Exterior Foundation Walls and Roofs. Every foundation wall, exterior wall, and exterior roof shall be substantially weathertight, watertight and rodent-proof; all exterior walls shall be made impervious to the adverse effects of weather by periodic applications of paint or a similar protective coating and shall be kept in sound condition and good repair. All foundation walls and exterior roofs shall be maintained in a safe manner and capable of supporting the loads which normal use may cause to be placed thereon.

B. Interior Floors, Walls and Ceilings. Every floor and interior wall and ceiling shall be substantially rodent-proof, shall be kept in sound condition and good repair, and shall be safe to use and capable of supporting the load which normal use may be caused to be placed thereon.

C. Windows and Doors. Every window, exterior door and basement or cellar door and hatchway shall be substantially weathertight, watertight and rodent-proof, and shall be kept in sound working condition and good repair.

D. Stairs, Porches and Appurtenances. Every inside and outside stair, porch and any appurtenance thereto, shall be safe to use and capable of supporting the load that normal use may be caused to be placed thereon, and shall be kept in sound condition and good repair.

E. Bathroom Floors. Every bathroom floor surface and water closet compartment floor surface shall be constructed and maintained so as to be substantially impervious to water and so as to permit such floor to be easily kept in a clean and sanitary condition.

F. Supplied Facilities. Every supplied facility, piece of equipment or utility which is required under this chapter shall be so constructed and installed that it will function safely and effectively and shall be maintained in sound working condition.

G. Drainage. Every ward shall be properly graded so as to obtain full drainage and so as to prevent accumulation of stagnant water, whenever reasonably possible.

H. Egress. Every dwelling unit shall be provided with means of egress as required by the building code. (Prior code § 5-1215)