Every habitable public or private building hereafter constructed and all existing habitable buildings, at the discretion of the Director, shall comply with the following requirements. These requirements shall not apply however to premises regulated by Chapters VII and XV of the State Sanitary Code.
A.
Each and every plumbing fixture, pipe, drain, sewer and sewer connection shall be properly plumbed, of sanitary design and construction, maintained in good repair and in a sanitary condition. No person shall occupy any building, dwelling, trailer or vehicle as a place of habitation unless a safe and adequate supply of water is readily available and unless adequate and sanitary facilities for the disposal of sewage shall have been provided therefor.
B.
Every habitable building intended for or occupied as a home or place of residence shall be provided with at least one toilet, one bathtub or shower, one lavatory and one kitchen sink for each single-family dwelling unit or, if more than one family, for each eight persons inhabiting such structure. Every habitable room in any such building shall be so constructed and maintained as to provide protection from the elements, freedom from excessive moisture, freedom from rodent and insect infestation, adequate ventilation, adequate natural lighting and shall be capable of being kept and shall be kept in a clean and sanitary condition.
C.
Every dwelling unit shall contain at least 150 square feet of floor space for the first occupant thereof and at least 100 square feet of floor space for every additional occupant thereof, calculated on the basis of total habitable room area. In every dwelling unit of two or more rooms, every room occupied for sleeping purposes by one occupant shall contain at least 70 square feet of floor space, and every room occupied for sleeping purposes by more than one occupant shall contain at least 50 square feet of floor space for each occupant thereof. At least 1/2 of the floor area of every habitable room shall have a ceiling height of at least seven feet. The floor area of that part of any room where the ceiling height is less than five feet shall not be considered as part of the floor area of the room for the purposes of determining the maximum permissible occupancy thereof.
D.
Every dwelling shall have heating facilities which are properly installed, are maintained in a safe and good working condition and are capable of safely and adequately heating all habitable rooms, bathrooms and water closet compartments in every dwelling unit located therein to a temperature of at least 70° F. at a distance of three feet above the floor level, under ordinary winter weather conditions. All heating devices shall be properly and adequately vented and shielded.