1520 BROADWAY 2016-01-01 MF Import

. � 1 ' . . ._ . • . • " . �j�, /��-L��.,�,.> / 82.` A floor or landing not morc than i inch below 303: ERterior stairS should not project into an area the threshol0 is required on each side of an (yards or courts) where wall openings must be exit door. Seclion 3303 (h). � proiected. Section 3305 (m). � 83.� Doors sh�uld not project more tlian 7 inches in� ]04: One stairway shoulA extend to the roof. Section to the required corridor widlh when tully 3305 (n).It must be in a smokeprool enclosure opened or more than onrhalt into the required in buildings over 75 leet in height. Section rorridor widW when in any position. Section 3309 (L). 3304 (d). .......................................................... 105.` Six�foot 6�inch minimum headroom clearance tor 84.' Revolving(sliAing) (overhead) doors are not per- stairways should be indicated on pians.Sedion mitled as exit doors. Srction 3303 (t). 3305 (o). Note that this is irom a plane tan- gent to lhe s:airway tread nosin�s. 85.' Ezit doors should proviac immediate atcess to an apProved means ot ef:ress. Sedion 3303 106: Ramp slopes should not ezceed onc toot in (g). Eziling throu�h anothei room does not ................................feet. Section 3306 (c) (d). compiy. 86.� Corritlors slioutd have a minimum width of 44 307.� Surtace of ramps shoutd be roughened or of a inches. Seclion 3304 (b). nonstip materiai. Section 330G (t). SZ�� Conidors serving nonambidatory persons should 308.� Stairways should be endosed as sDetified in have an S�foot minimurn width. Section 3318 Section 3308. �� (a) Onc (two)-hour tire-resistive walls are re• quired. 88.� DeaA end of corridors and exit balconies are (b) Only exit doors are allowed to open into ezit limited ro 20 teeL 9ection 3304 (i). enctosures. . (c) Doors should be la6eted one (one�and�one• 89. Walis anA ccilings of mrridors should be of onN haif)�hour fire assembiies. . hour fire-resistive consiruction. SeMion 3304 (d) Exit enclosures should inclvde a corridor on • -_ (�). An architectural section through ihe corri• the Gmund 11oor extending to the ezterior. dor is necessary to determine how this is Firrresistive construction should be as re- accomp�ished. quireA for the exit enclosure, includinR pro� 90. Ealerior exit baimnies wnnot ro'ect into an tecled openings. Only exit doors are per• P 1 milled to open into the corridor. ama where protected openings arc required (e) An approved barrier is requimd at ihe due to location on property. Section 3304 (i). ground Iioor to prevent people irom acci- ..................-.....-................-.............................. dentally continuing to the lower Ievei. 91. Interior openings into rorridors should be pro- (f) Usahlc space is not allowed under lhe �. tecled as epecified in Section 3304 (h). stairs. � .............................................................................. . 92.� Stairway .._............_...................._.. shoWd have a minimum width of ...............__. inches. Trim 109: Onc ezit from lhe building should Ge a smoke• and handrails should not project mom fhan proof enclosure compiyinr; with Section 3309. 3�/� inches into the required width. Section 3305 (b). I10: Openings inlo exit courts Iess than 70 feet viide 93."�Riscrs on stairwa s should not exceed 7�/z shoWd be protecteJ with labeled 45�minute fire Y assemblies. Section 3310 (d). Also see "exit inches and runs should nol be less ihan 10 court" detinition in Section 3301 (c). Openin�s ' inches. Section 3305 (c). more than 10 feet above 1he court tloor are 94.� Lantlings on stairways should have a dimension exempL � in the diredion o( travei equal to the width of ��7; No openings other than required exits are per- the stairway bul need not ezceed 4 teet. Sec• mifled in c*it passageways. The passagev;ays tion 3305 (f). shoutd be oi............._...._... •hour fire�resistive 95. Landin�s should not be teJuced in width more constmclion. Sec:ion 3311 (a). than 3�/� inches by a door when fully open. �32.` Exit illumination and signs should be pmvided in Section 3305 (f). coMormance with Sedion 3312. 9G. Qasemert pnriion nf staitways should have an 113. Aisle (cross aisie) in auditorium shouid have a approved barrier w.hero continuous to upper minimum wiJ�h of _.._...... ................... Section 1loors in an ezit enclosure. Section 3305 (�). 3313 (b). Scction 3313 (e). • ' 97.�I Verlical Jistnnces bet�5�ren stairway landings are 114: Panic hardwere is reQuireA vn exit doors serv'�C • limited to 12 iceL Seclion 3l05 (h). Group [3 Otcupancir.s having an nccupant load . 98.� Handreils should be placed not Icss than 30 of more than ]00. Section 3316 (a). In lieu inches nor more than 34 inN�es above the of this, Aoors shall have no locks or latches. trcad. Seclion 3305 (i). Two handrails are ra• - � quimA where slairways exceed 4M1 inches in .15. Main andrside exits in contormance Milh S_c- width. tion 331�are required tor f3�2 (1)Ocr,upancies. - Sectinn 3316 (a). 99."�Guardrails for slairs, balronics, and landings - " � � should confoim wilh Se-lion 1714. Note that I1G.' Corridors oi Group C Occupancies s hould have a mazinunn clearance 6Mw�een intennediate rails widfh mquired by Seclion 3302 phis 2 leel, but is 9 in[hes. N��c.H'j r�n-'. 41•' , not less fhan G feeL Section 33ll (e). 100.'� Opm�in�e�, in ezlerior vmlls wi:hin 10 tect ot 117•' Cach floof atwvc or bclow Lhe ground 11oof levcl � ezlerior staiiways should be protected wilh of Group C Occupancies should liave no less � sclLdosinp three�fowths�hour fire�resislive as� tlian 1wo exit stairs. Section 3317 (G). . sentblies, tiecfion 3305 (k). �78,'I Cxit stairs servin� an occupant iond of more ]Ol. EndoscA usnblc space undcr intcrior stairway; ihan ]00 in a Group C Occupancy should havn, should bc prolcded on tl�c encloseJ sidc as a minimum dcar wiAlh of 5 icM. Section 3317 , rcyuired 1or onr�liour tirrresistivc construc ��)• tion. ticciion 3305 (I). . 119. Lvery room with an occupant load exceeAing ]02.' Noncombwliblc extcrior slairs are required. 30�should havc onc of iL^ er.its inlo a separate Secllon 33U5 (m). exit system. Seclion 3317 (6).