A. 
Buildings and parts thereof shall be maintained so as to be capable of sustaining safely their own weight and the loads to which they may be subject.
B. 
Buildings shall be maintained so that loads are transmitted to the soil without undue differential settlement, unsafe deformation or movement of the building or any structural part.
C. 
Buildings shall be maintained so that protection is provided for all structural members which may become structurally unsound if left unprotected. Causes of such deterioration include, among others, action of freezing and thawing, dampness, corrosion, wetting and drying and termites or other destructive insects.
D. 
Buildings built in soil which is water bearing at any season of the year shall be maintained so that groundwater and surface water will not penetrate into habitable spaces.
A. 
The foundation walls of every structure used for human habitation shall be maintained in good repair and be structurally sound.
B. 
Foundation walls shall be considered in good repair and structurally sound if found free from damage or defects and capable of bearing imposed loads.
A. 
The stairs, porches and railings affixed to the exterior of every structure used for human habitation shall be kept in good repair and structurally sound. Railings shall be provided for stairs and balconies and, where necessary, for porches and accessible roofs.
B. 
Stairs and porches shall be considered to be in good repair and structurally sound when found to be free of holes, cracks and capable of supporting imposed loads. Properly balustraded railings shall be provided when there is clear danger of accident or personal injury and must be capable of bearing normally imposed loads.
A. 
Every structure used for human habitation shall be so maintained that it will be weather and water tight.
B. 
Exterior walls, roofs and all openings around doors, windows, chimneys and all other parts of the structure shall be so maintained as to keep water from entering the structure and to prevent undue heat loss. Damaged materials shall be repaired or replaced. All parts of the structure that show evidence of dry rot or other deterioration shall be repaired or replaced and refinished. Such replacement, wherever practical, shall be in conformity with the remainder of the structure.
A. 
All exterior wood surfaces of a structure used for human habitation that are not of a species inherently resistant to decay shall be treated when necessary with a protective coating or other preservative to prevent structural deterioration.
B. 
Exterior wood surfaces shall be adequately protected against deterioration through the application of approved protective coatings, when necessary.
A. 
Every structure used for human habitation shall be free of loose overhanging objects.
B. 
Exterior walls, roofs and all other parts of the structure shall be free from loose and unsecured objects and materials. Such objects or materials shall be removed, repaired or replaced.
A. 
Cellars, basements and crawl spaces, in every structure used for human habitation, shall be reasonably free from dampness to prevent conditions conducive to decay or deterioration of the structure.
B. 
Ventilation shall be provided in every basement, cellar and crawl space by means of windows, openings or vents or mechanical vents.
A. 
Supporting structural members of every structure used for human habitation shall be structurally sound.
B. 
Supporting structural members shall be considered to be structurally sound if such members are capable of bearing imposed loads safely and if there is no evidence of deterioration.
A. 
Chimneys and all flue and vent attachments thereto and all other flues and vents of every structure used for human habitation shall be structurally sound and free from defects to assure the performance of the function for which they were designed and are used.
B. 
Chimneys, flues, gas vents or other draft-producing equipment shall provide sufficient draft to develop the rated output of the connected equipment. Chimneys, flue linings, where required, flues, gas vents and their supports shall be structurally safe, durable, smoke-tight and capable of withstanding the action of the flue gases.
A. 
Interior stairs of every structure used for human habitation shall be structurally sound and free from defects. Railings shall be provided for stairs, balconies, landings and stairwells.
B. 
Treads or risers that evidence excessive wear or are broken, warped or loose shall be repaired. Stairs shall be securely fastened to supporting structural members and be capable of supporting normally imposed loads. Properly balustraded railings, capable of bearing normally imposed loads, shall be placed on the open portions of stairs, balconies, landings and stairwells.
A. 
Floors, walls and ceilings of every structure used for human habitation shall be structurally sound and maintained in a clean and sanitary condition.
B. 
Floors shall be considered to be structurally sound where capable of safely bearing imposed loads. Walls and ceilings shall be considered to be structurally sound and in good repair when clean, free from breaks, loose plaster and similar condition.