274

All outside fire-escapes erected before October first, nineteen hundred and thirteen, and serving as required exits under the provisions of section two hundred and seventy-one shall conform to the following requirements: 1. There shall be balconies on each floor of the building connected with stairways placed at an angle of not more than sixty degrees. 2. A stairway shall lead from the top floor balcony to the roof, except when the fire-escapes are erected on the front of the building. 3. A stairway not less than twenty-two inches wide shall lead from the lowest balcony to a safe landing place beneath, which stairway shall remain down permanently or swing up and down by counterbalancing weights. 4. A safe and unobstructed exit shall be provided to the street from the foot of such fire-escapes as required in subdivision nine of section two hundred and seventy-three. 5. Steps shall connect the sill of every opening leading to the fire-escapes with the floor wherever such sill is more than three feet above the floor level. 6.

section two hundred and seventy-three. 5. Steps shall connect the sill of every opening leading to the fire-escapes with the floor wherever such sill is more than three feet above the floor level. 6. All openings leading to the fire-escapes shall be provided with fireproof windows or fire doors. 7. All windows opening upon the course of the fire-escape shall be fireproof windows.