Except as otherwise expressly provided, all the provisions of this article shall apply to every multiple dwelling erected after April eighteenth, nineteen hundred twenty-nine. Except as otherwise expressly provided, only the following enumerated sections of this article, and then only to the extent required therein, shall apply to multiple dwellings, whether class A or class B, erected before such date:
§ 28. Two or more buildings on 59. Bakeries and fat boiling same lot 60. Motor vehicle storage 29. Painting of courts and 61. Business uses shafts 62. Parapets, guard railings 31. Size of rooms--subdi- and wires--subdivision two vision six 66. Lodging houses 33. Cooking spaces 67. Hotels and certain other 35. Entrance doors and class A and B dwellings lights 75. Water supply 37. Artificial hall lighting 76. Water-closet and bath 50-a. Entrances: doors, accommodations locks and intercommunication 77. Plumbing and drainage systems 78. Repairs 52. Stairs 79. Heating 55. Wainscoting 80. Cleanliness 56. Frame buildings and 81. Receptacles for waste extensions matter 57. Bells; mail receptacles 83. Janitor or housekeeper 58. Incombustible materialsN.Y. Mult. Dwell. Law § 25