The exterior of structures shall be maintained structurally sound and sanitary so as not to pose a threat to the health and safety of the occupants and so as to protect the occupants from the environment.
The exterior of every structure, including vacant structures, shall be maintained in good repair. They shall be maintained free of broken glass, loose shingles or siding, crumbling stone or brick, significant peeling of paint or other conditions reflective of inadequate maintenance which would cause a blighting problem or adversely affect the public health or safety.
Every exterior wall shall be free of breaks, loose or rotting boards or timbers and any other conditions which might admit rain or dampness to the interior portions of the walls or to the occupied spaces of the building. All exterior surface material, including wood, composition or metal siding, shall be maintained weatherproof and shall be properly surface coated when required to prevent deterioration.
The roof shall be structurally sound, tight and not have defects which might admit rain.
All cornices, entablatures, 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, stairways, 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 safe and sound condition. They shall be protected against decay and rust by the periodic application of a weathercoating material such as paint or other protective treatment.
All chimneys, cooling towers, smokestacks and similar appurtenances shall be maintained structurally safe, sound and in good repair, and all exposed surfaces of metal or wood shall be protected against decay or rust by periodic application of weather-coating material such as paint or similar surface treatment.
Every stair, porch, balcony and all appurtenances attached thereto shall be so constructed as to be safe to use and capable of supporting the loads to which it is subjected and shall be kept in sound condition and good repair.