Special Bulletin Volume 54-56 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...board shall determine, and in its rules and regulations shall specify, the material and mode and manner of construction and erection of such doors. 7. Fireproof windows shall be windows constructed of metal frames and sash and provided with wired glass and of the automatic, self-closing type. 8. Exterior enclosed fireproof stairways shall be stairways completely enclosed from top to bottom by walls of fireproof material not less than eight inches thick extending from the sidewalk, court or yard level to the roof, and with walls extending above the roof so as to form a bulkhead. The stairway shall in all other respects conform to the requirements of this article in regard to enclosed stairways. There shall be no opening in any wall separating the exterior enclosed fireproof stairway from the building. Access shall be provided to the stairway from every floor of the building by means of an outside balcony or vestibule of steel, iron or masonry. Every such balcony or vestibule shall have an unobstructed width of at least forty-four inches and shall be provided with a fireproof floor and a railing of incombustible material not less than three feet high. Access to such balconies from the building and to the stairway from the balconies, shall be by means of fire doors. The level of the balcony floor shall be not more than seven inches below the level of the door sill of the building. The doors shall be not less than forty-four inches wide and shall swing outward onto the balcony and inward from the balcony to the stairway, and shall be provided with locks or latches with visible fastenings requiring no key to open them in leaving the building. The landings in such stairway shall be of such width that the doors in opening into the stairway shall...