Illinois Society of Architects · Chicago · leaf 186
od. (b) In every new non-fireproof tenementhouse all stair halls shall be enclosed onall sides with walls of solid masonry of thedimensions jefiuired by Section .506. Allwindows in stair halls, except where sameopen into a street, alley, outer court, oryard, shall have metal frames and… … •vJECTlON-A-A • 5E.CT[ONB-lFig-. 15.SECTION 441 B.Beginning, where the main entrance vestibule, etc.If walls F H G I, also tloor 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 vestibule B…
Architecture · Building · Architects
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