17. Every building built or altered after the 25th of April, 1908 to serve as a theatre, for dramatic or operatic entertainments, or for other like purposes requiring the use of a stage with moveable scenery, curtains and machines, shall be a first class building, that is to say, fireproof to the satisfaction of the inspector, and the upper part of the main floor of the hall must not be more than seven feet above the level of the street or road where the exit doors are situated.
R. S. 1964, c. 149, s. 17.