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�rna- <br />:lion <br />:oric <br />:asi- <br />;ible <br />n or <br />y, as <br />u of <br />II bc <br />snce <br />;iblc <br />the <br />1 bc <br />�. � <br />:kcd <br />i; or <br />c, a <br />Sr5- <br />�ms� <br />pro- <br />Hi�i <br />hall <br />� of <br />of <br />4er. <br />IfL'- <br />osc <br />lhe <br />�ric <br />tcrl <br />1^- <br />in� <br />ith <br />�hc. <br />its. <br />I 1U5,4 Occupancy separotion. Requinxf ixcup:u�cy scp:ua- <br />tiuns of 1 hnur may bc omittcd whcn the building is pmvidcd <br />w ith an approvcd automatic sprinklcr system throughout. <br />I I OSS Roof coverinq. Rcgardlcss of occupa�icy ur use gmup, <br />tcx�Gcovcring malcrials nol Icss ilian Class C shall bc �emiiltccl <br />whcrc a firc-rclaniant roof covcring is requircd. <br />�1U5.6 Means o[egtcss. Existing door openings and cortidor <br />yncl staitway widths less than Ihosc that would be accepta6lc <br />nonhistoric buildings undcr t' .;sc provisions shall be <br />rovcd, providcd that, in thc opinion of thc codc o�cial, <br />tc is sullicient widlh and hcight for a person to paas Ihrough <br />opcning or traversc thc exit and Ihat d�e capacity of thc ezit <br />tem is adW uate (ur the uc:cup�u load, or when; otheropera- <br />, al conwls to limi� occupancy arc appmved by the caie <br />15.7 Donrswing. When approv�Yl hy thccode omcial,exist- <br />front dwis n��:J not swing in thc dircction o( cait vavcl. <br />rvidcci that othcr approvcd cails having sufiicient capacity to <br />��c thc tutal occupan� load arc pmvided. <br />I5.8'h-ansoms. In cortidor walls reyuimd by Wese pmvi- <br />ns to bc fire-resislance nled, eacisang tnnsoms may be <br />intained i(fixcd in �hc closed posiuon, and fixed wircd glaes <br />in a stccl Ga.-nc or mhcr approvcd glazing shall be installed <br />one side of the tr.visom. <br />ceplion: Tnnsoms confarming to Swtion I 103.4 shall <br />acccplcd. <br />9 Finishes. Whcm finish matcrials arc required to havc a <br />-sprcad classification o( Class lll or bcucr, existing <br />m(onning materials shall be sudaccd widi an approved <br />�tanlant paint or finish. <br />ExcepUnn: Gxisting nonwnfomiing matcrials nced not bc <br />sudacccl with an approvccl firc-rcturclant paint or finish <br />whcn: the building is cquip�xect thmughout with an auto- <br />matic fin:-supprcssion systcm installcd in acconiancc with <br />Wc lnrcrnational Bui(ding Code and the nonconfortning <br />matcrials cnn bc subslantiatcd as bcing historic in charactcr. <br />HISTORIC BUILDING: <br />1105.13 F:xit slair live load. Eaisting historic smirways i� <br />buildings changcd to a Gmup R-1 or R-2 cecupancy shall M <br />accepted wherc it can Ix shown that the stainvay can suppon � <br />75-�und5-per-squarc-foot (3G6 kpJm') live load. <br />1105.14 NalurnllighL When it is detertnined by the code o(fi <br />cial that compliance with thc natural iight rcquirements of&c <br />uon 911.1 will leacl to loss of historic character or historii <br />materials in the building. �he ecisting level of natural lightin� <br />shall be considered acceptahle. <br />I105.15 Acce�sibility myutmmcr.tc. 7hc smvisions ef See <br />tion 912.8 shall apply to 6uildi.ign snd faciliUcs designated a: <br />historic swaures that undcrgo a chwigc ofbccupanc•/, imles: <br />technically infcasible. Wherc compliance with the requirr <br />men�s for accessible routca, ramps, envances, or toilet facilitie� <br />would thrcaten ordcswy thc historic significancc of thc build <br />ing or faciliry, as detennineci by the authority havingjurisdic <br />tion, the altemalive reyuircmenLs of Sections 1 104. I. I lhmugt <br />I I(�1J.5 for those elemenls shall bc �rmiued. <br />secnor► ��oe <br />STRUCTURAL <br />1106.1 Gencral. Hisroric buildings sh•rll comply wid� thc <br />applicablc swctural provisions for Uic work as claxsificd ir <br />Chap�cr 4. <br />Exmption:'llie code oflicial shnll be authorized to acccpt <br />cxisting tlain and appmvc operational convols that timii <br />the livc load on a�iy such floor. <br />1106.2 Unsafe sUvclural elcmenls. Whcre ihc code official <br />dctcmiines tliat a componcnt or a portion of a building or swa <br />tun isd:u�gemus as dc�ned in this code and is in need of rcpair, <br />strengthcning, or replaccment by pmvisions of this caie, onlv <br />that specific component or poRion shall bc mquircd to bc <br />rcpaircd, stmngthcncd or rcplaced. <br />i.10 One•hour fir�mistant assemblics. Wherc 1-6our C <br />n�sistance-r.ited conswctian is rcquired by thesc prov�- <br />s, it nced not bc pmvided, regardless oC conswction or <br />�pancy, whcn; �he ezisting w;ill :uid ceiling finish is woal <br />and plastcr. <br />.l l Stairs and miliogs. Gxisting stairnays shall comply <br />Oic rcyuiremen�s of Oicse pmvisions. Thc cale o�iicial <br />grant altcmatives for stairµ•ays and cailings if alternative <br />vays arc (ound to bc acceptable or arc judgcd to mect the <br />t of thcsc provisions. Ezisung stainvays shall comply with <br />on 1103. <br />`: 1?xmption: For buildings laca than 3.(N)0 square feet (279 <br />m'), cxisting conditions :ue permitted to remain at nll st:urs <br />and ruls. <br />1IU5.12 Exil signs. The calc umcial may accept aliemative <br />cxit sign ]ceations whcre such signs would damagc the historic <br />charictcr of �hc building or structurc. Such signs shall idenufy <br />tlir cxiis and exit path. <br />�p� �61NTERNATIONAL EXISTING BUILDING CODE� `a1 <br />