The exterior of a structure shall be maintained in good repair, structurally sound and sanitary so as not to pose a threat to the public health, safety or welfare.
All exterior surfaces, including but not limited to, doors, door and window frames, cornices, porches and trim, shall be maintained in good condition. Exterior wood surfaces, other than decay-resistant woods, shall be protected from the elements and decay by painting or other protective covering or treatment. Peeling, flaking and chipped paint shall be eliminated and surfaces repainted. All siding and masonry joints as well as those between the building envelope and the perimeter of windows, doors, and skylights shall be maintained weather resistant and water tight. All metal surfaces subject to rust or corrosion shall be coated to inhibit such rust and corrosion and all surfaces with rust or corrosion shall be stabilized and coated to inhibit future rust and corrosion. Oxidation stains shall be removed from exterior surfaces. Surfaces designed for stabilization by oxidation are exempt from this requirement. All structures shall contain finished siding material.
Each structure to which a street number has been assigned shall have such number displayed in a position on the structure that is easily observed and readable from the public way. All numbers shall contrast with the background and be Arabic numerals at least four (4) inches high and one-half (1/2) stroke.
All structural members shall be maintained free from deterioration, and shall be capable of safely supporting the imposed dead and live loads.
All foundation walls shall be maintained plumb and free from open cracks and breaks and shall be kept in such condition so as to prevent the entry of rodents and other pests.
A. 
All exterior walls shall be free from holes, breaks, loose or rotting materials; and maintained weatherproof and properly surface coated where required to prevent deterioration.
B. 
The exposed walls and roofs of buildings shall be maintained in a clean, orderly and attractive condition, free of cracks, dents, punctures and breakage, and other forms of visible marring. Materials that become excessively faded, chalked or otherwise deteriorated shall be refinished or repainted.
The roof and flashing shall be sound, tight and not have defects that admit rain. Roof drainage shall be adequate to prevent dampness or deterioration in the walls or interior portion of the structure. Roof drains, gutters and downspouts shall be maintained in good repair and free from obstructions. Roof water shall not be discharged in a manner that creates a public nuisance.
All cornices, belt courses, corbels, terra cotta trim, wall facings and similar decorative features shall be maintained in good repair with proper anchorage and in a safe condition.
All canopies, marquees, signs, metal awnings, fire escapes, standpipes, exhaust ducts and similar overhang extensions shall be maintained in good repair and be properly anchored so as to be kept in a sound condition. When required, all exposed surfaces of metal or wood shall be protected from the elements and against decay or rust by periodic application of weather-coating materials, such as paint or similar surface treatment.
Every exterior stairway, deck, porch and balcony, and all appurtenances attached thereto, shall be maintained structurally sound, in good repair, with proper anchorage and capable of supporting the imposed loads.
All chimneys, cooling towers, smoke stacks, and similar appurtenances shall be maintained structurally safe and sound, and in good repair. All exposed surfaces of metal or wood shall be protected from the elements and against decay or rust by periodic application of weather-coating materials, such as paint or similar surface treatment.
Every handrail and guard shall be firmly fastened and capable of supporting normally imposed loads and shall be maintained in good condition.
Every window, skylight, door and frame shall be kept in sound condition, good repair and weather tight.
All glazing materials shall be maintained free from cracks and holes.
Every window, other than a fixed window, shall be easily openable and capable of being held in position by window hardware.
All exterior doors, door assemblies and hardware shall be maintained in good condition. Locks at all entrances to dwelling units, rooming units and guest rooms shall tightly secure the door.
Every basement hatchway shall be maintained to prevent the entrance of rodents, rain and surface drainage water.
Basement hatchways that provide access to a dwelling unit, rooming unit or housekeeping unit that is rented, leased or let shall be equipped with devices that secure the units from unauthorized entry.
Every basement window that is openable shall be supplied with rodent shields, storm windows or other approved protection against the entry of rodents.
Doors, windows or hatchways for dwelling units, room units or housekeeping units shall be provided with devices designed to provide security for the occupants and property within.
Doors providing access to a dwelling unit, rooming unit or housekeeping unit that is rented, leased or let shall be equipped with a deadbolt lock designed to be readily openable from the side from which egress is to be made without the need for keys, special knowledge or effort and shall have a lock throw of not less than one (1) inch. Such deadbolt locks shall be installed according to the manufacturer's specifications and maintained in good working order, for the purpose of this section, a sliding bolt shall not be considered an acceptable deadbolt lock.
Operable windows located in whole or in part within six (6) feet above ground level or a walking surface below that provide access to a dwelling unit, rooming unit or housekeeping unit that is rented, leased or let shall be equipped with a window sash locking device.