§ 232. Fire-escapes. 1. All fire-escapes erected after April eighteenth, nineteen hundred twenty-nine, shall be arranged and constructed in conformity with the provisions of section fifty-three. 2. As specifically indicated in subdivision nine of section fifty-three, a wire, chain, cable, vertical ladder, or rope fire-escape is an unlawful means of egress from any apartment. Every such fire-escape shall be removed and replaced, if required as a means of egress, by a system of fire-escapes constructed and arranged as provided in section fifty-three.