(A) The rules of the board of building standards shall:

1. (1) For nonresidential buildings, provide uniform minimum standards and requirements, and for residential buildings, provide standards and requirements that are uniform throughout the state, for construction and construction materials, including construction of industrialized units, to make residential and nonresidential buildings safe and sanitary as defined in section 3781.06 of the Revised Code;
2. (2) Formulate such standards and requirements, so far as may be practicable, in terms of performance objectives, so as to make adequate performance for the use intended the test of acceptability;
3. (3) Permit, to the fullest extent feasible, the use of materials and technical methods, devices, and improvements, including the use of industrialized units which tend to reduce the cost of construction and erection without affecting minimum requirements for the health, safety, and security of the occupants or users of buildings or industrialized units and without preferential treatment of types or classes of materials or products or methods of construction;
4. (4) Encourage, so far as may be practicable, the standardization of construction practices, methods, equipment, material, and techniques, including methods employed to produce industrialized units;

5. (5) Not require any alteration or repair of any part of a school building owned by a chartered nonpublic school or a city, local, exempted village, or joint vocational school district and operated in conjunction with any primary or secondary school program that is not being altered or repaired if all of the following apply:

   1. (a) The school building meets all of the applicable building code requirements in existence at the time of the construction of the building.
   2. (b) The school building otherwise satisfies the requirements of section 3781.06 of the Revised Code.
   3. (c) The part of the school building altered or repaired conforms to all rules of the board existing on the date of the repair or alteration.

6. (6) Not require any alteration or repair to any part of a workshop or factory that is not otherwise being altered, repaired, or added to if all of the following apply:

   1. (a) The workshop or factory otherwise satisfies the requirements of section 3781.06 of the Revised Code.
   2. (b) The part of the workshop or factory altered, repaired, or added conforms to all rules of the board existing on the date of plan approval of the repair, alteration, or addition.

(D) As used in this section:

1. (1) "Nonpublic school" means a chartered school for which minimum standards are prescribed by the state board of education pursuant to division (D) of section 3301.07 of the Revised Code.
2. (2) "Workshop or factory" includes manufacturing, mechanical, electrical, mercantile, art, and laundering establishments, printing, telegraph, and telephone offices, railroad depots, and memorial buildings, but does not include hotels and tenement and apartment houses.