4. (1) The public buildings mentioned in section 2 shall afford all the security required by this act and the regulations made under its authority.
(2) Public buildings open to the public on the 25th of April, 1908 (the date of the coming into force of chapter 52 of the statutes of 1908), and which require too heavy an expense to be made conformable to the prescribed requirements, shall however be made to conform thereto as far as possible, to the satisfaction of the inspector.
(3) No public building shall be built or altered, and no work affecting the solidity of a building or of part of a building, or changing the conditions of a building or part of a building, shall be done, without a permit from the inspector. Such permit shall not be issued until after examination of the plans and specifications for the building.
(4) When extensive alterations are made to a public building, an architect’s certificate as to the solidity and safety of such building shall be given by the owner to the inspector.
(5) If the destination of a public building is so altered that greater solidity is required, an architect’s certificate establishing such solidity shall be given by the owner to the inspector.
(6) Whenever owners and tenants cannot agree upon an architect, the choice thereof shall be made by the inspector, who shall appoint an architect recognized by the Ordre des architectes du Québec, and the certificate of such architect shall be valid.