Illinois Society of Architects · Chicago · leaf 203
od. (b) In e\ery new non-flroproof tenementhouse all stair halls shall be enclosed onnil sides with walls of solid masonry of thedimension^ reriuired by Section 506. Allwindows in stair halls, except where sameopen into a street, alley, outer court, oryard, shall have metal frames and sashes,glazed… … -vJECTION-A-A • 5E:CTI0N B-B. •Figr. 15.Si:( TION 441 B.13(gniiiiiig, where the main entrance vestibule, etc.If walls 1 II G I, also floor and ceiling of entrancehall A, and floors and ceiling of vestibule B, are offireproof construction, and door C is a fireproof doorwith fireproof frames, the…
Architecture · Building · Architects
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