1924 ORDINANCES - Laserfiche WebLink

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391 (c) The top and sides of dormer windows shall be covered same as the roof, or with material having equivalent fire -resistive properties. (d) If a wood shingle roof is damaged by a fire more than 20 per cent, the entire roof shall be replaced with material specified in Paragraphs "a" and "b" of this Ordinance, except as specified above. (e) The City Manager shall have power to condemn and have removed any wood shingle roof that in his opinion is in such a deteriorated condition as to be excessively inflammable. (f) Within twelve (12) yeabs from the date of the approval of this Ordinance any and all roofs covered with wood shingles shall be replaced with roof coverings which comply with this Ordinance. SEC, 23. Roof Openings. All openings in roofs for the admission of light or air, other than thos provided for in .)'ections 18 and 21, shall have incombustible frames and sash glazed with wired glass; or ordinary glass may be used, if protected above and below by galvanized steel wire screens with a mesh not exceeding one inch, and the wire not smaller than No. 12 gauge. The top screeen shall be installed as specified in Section 18. Sec. 24. Exits required. (a) The term "FLOOR AREA" as used in this section shall mean the entire floor space between exterior walls and fire walls. (b) In every building hereafter erected, except in private dwellings, each floor area above the first shall be provided with at least two means of egress remote from each other, and if over two stories high, one egress from each floor, which shall be enclosed stairway as provided by Section 17, or a doorway in a fire wall leading to another floor area separately provided with adequate stairs or other independent means of exit. 'Such doorway serving as an emergency exit in a fire wall shell be protected by an automatic and self-closing fire door as specified in Section 16. No portion of any floor area shall be more than one hundred (100) feet from a place of egress. Elevators shall not be considdred as a means of egress as specified in this section, (c) &cept in dwellings, no required stairway shall be less than 44 inches wide, and the ,otal width of exit doorways leading therefrom shall at least be equal to the total width of the stairways which they Nerve. (d) The total width of stairway, interior and exterior, provided for the occupancy of each floor and those above, shall be not less than 44 inches for the first 50 persons, and 12 inches for each additional 50 persons to be accommodated thereby. The stair treads Shall be not less than nine and one-half (9-1/2) inches wide, and the risers not more than seven and three quarters (7-3/4) inche s high. (e) Each school, hospital and theater, over one story high shall have stairways constructed entirely of incombustible material, and continuous from grade lines to the top Most story, provided that this shall not apply for buildings used primarily for Sunday School purposes without the fire limits. (f) All exit doors in echool8, hospitals, theaters, and other places of Public assem- blage, shall open outward andall existing structures of this class shall conform thereto. SEC. 25, Fire Stops. At each floor level in all buildings hereafter erected, all stud walls, partitions, furring and spaces between joists where they rest on division walls or partitions, shall be fire -stopped with incombustible material in a manner to completely out off communication by fire through concealed spaces* Such fire -stopping shall extend the full depth of the joists,