Floors, interior walls and ceilings of every structure used for human habitation or occupancy shall be structurally sound and maintained in a clean and sanitary condition.
Floors shall be considered to be structurally sound when capable of safely bearing imposed loads and shall be maintained at all times in a condition so as to be smooth, clean and free from cracks, breaks and other hazards.
Bathrooms, water closet compartments and kitchen floors shall be kept at all times in a dry, clean and sanitary condition and shower room floors shall be kept clean and sanitary.
The basement and cellar crawl space shall be kept dry and ventilated. The floors of basements or cellars shall be paved with brick, cement, tile or asphalt or with some other imperious material. The side walls and ceilings of every basement or cellar shall be kept free from damages. The basement or cellar shall be kept free from damages. The basement or cellar shall be kept clean and free from any accumulation of filth, ashes, garbage, rubbish, refuse, junk, soil matter, wood, paper and other matter of a combustible or putrefactive nature.
Supporting structural members are to be kept structurally sound, free of deterioration and capable of bearing imposed loads safely.
Interior stairs of every structure shall be structurally sound and free from defects.