The board of mayor and aldermen, or the corresponding governmental body of any city, is hereby empowered and authorized in the passing and adopting of ordinances, establishing codes, rules and regulations for the construction of buildings, relating to the installation of plumbing, the use of concrete, masonry, metal, iron and wood, and other building material, the installation of electric wiring, and fire protection incident thereto or for the prevention of fires to adopt any additional regulations provided that the regulations are not less stringent than the requirements of the state building code under N.H. Rev. Stat. Chapter 155-A or the state fire code under RSA 153; provided, that upon adoption of such ordinance wherein such code, rules and regulations or portions thereof have been incorporated by reference, there shall be filed 3 copies of such codes, rules and regulations in the main office of the municipal department or agency administering the same and 3 copies in the office of the city clerk. All copies of any code, rules and regulations filed as provided herein, shall be for use and examination by the public.