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82.� A floor or landing not more than 1 inch bclow <br />qie threshold i, requirctl on cach side of an <br />exit dooc Section 3303 (h). <br />83.' Dwrs shaulA not project more lhan 7 inches im <br />to the requiicd wrridor wiJth when fully <br />opened or moic U�an onrhilf inlo thc rcquiretl <br />corriAor width when in any position. Section <br />3304 �d) . .......................................................... <br />&7.'" Revolving (sliding) (oved�ead) doors a�e not per� <br />miticA as ezit doors. Sectiou 3303 Q). <br />85.` Exit doors sho�dd provide immediate access to <br />an approved mcans of eGress. Setlion 3303 <br />(�). ExitinG l�vou�h another room does nol <br />conip�y. <br />86.�� Corridors should h�+ve a minimum widlh ol 44 <br />I inches. Section 3304 (�). <br />{- <br />8Z� Corridor scrving nonambulatory per5ons should <br />havc an 8•l001 minimum width. Section 3316 <br />(c). <br />88.' Dead end of corridors and exit balconies are <br />limited to 70 fcet. Section 330A (f). <br />89. N'alls and ceilings of corridors shoulA be of one� <br />. hour fire�resistive construction. Section 330A <br />(g). An architectural section through lhe corri• <br />dor is necessary to determine ho.v this is <br />aecompiished. � <br />90. Exterior ezit balconies cannot project into an <br />arca wherc protccled openin�s are rcQuired <br />due lo location on propeity. Settion 3304 (i). <br />.......................................................................... <br />93Y Interior openings inlo corridors slmuld be pro� <br />tectecl as specified in Section 3304 (h). <br />92. Stairvrey ......................._................. shoulA have <br />a minimum vridth of ....._.._......... inches. Trim <br />and handrails should not projed more than <br />� 3�/r inches inlo ihe mquirod widlh. Section <br />3305 (b). <br />/ 93. Riscrs on stairv+ays should nol exceed 7�/z <br />(�, � in[hes and runs should not bc less lhan 10 <br />/ inthes. Set�ion 3305 (c). <br />94. Landinps on s(ainvays should have a dimen;ion <br />in thc direction o( travel equal to thc width of <br />the stairo:ay bu[ necd not exceed A fceL Sec <br />tion 3305 (f). <br />95. Landings should not be reduced in widlh morc <br />thin 3�/� inches by a door rihen fully open. <br />Seclion 3305 (f). <br />9G."� Oasemcnl purtion of stairways should have nn <br />Iapproved barricr �vherc conlinuous to upper <br />floors in an ezit cndosurc. Scclinn 3305 (�). <br />97. Vertical Aistances bchveen stainvay landings are <br />limilecl to 12 teeL Seclion 3305 Qi). <br />�� � 9&. HanArails should bc pla[ed nol Icss than 30 <br />incLes nor more than 34 inches nbove the <br />-7� j� t�eaJ. Seclim� 3305 (i). Tvo handrails are re• <br />r' ` quireA where slaiiways exceed 4A inches in <br />� widlh. <br />�. <br />99. � Cuaidr. ils for stairs, bolconics, and landin(+s <br />shauid confom� wilh Seclion 1714. Nolc thal <br />maxiinum cicarancc betvmen intcrmediate rails <br />is 9 inches. <br />0�.� Openin�;s in ezlcrior �ealls within ]0 Icet of <br />e:�crior stainvnys should bc protr,tted with <br />:clLclosin{! �hree�lourfhs�hnur �ire�resislive as• <br />sem6lies. Sectinn 33U5 (k). <br />Ol.� EnclosaA usablr. spaco tmdcr intcrior slainvay.: <br />should 6c I�rolcr.lcd on thc r.ncloscd sidc as <br />mquired for onrvhour liro-i^sizlivc cnnstiuo <br />tion_ Soetion 3305 (q. <br />02. � tJuntomhustiblc exlcrior ,lairs arc rcquired. <br />Srclion 3305 (m). <br />303.` � Exlcrior sWirs should no[ p�oject inlo an area <br />(yards or cowis) where wall openinGs musl be <br />profected. Sedion 3305 (m). <br />304. � One stairv+ay shoidA exlenA to the rooL Section <br />3305 (n). It must be in a smokeproof endosurc <br />in huildin�s over 75 feet in heighL Section <br />3309 (b). <br />305. � Sizdoot 6�inch minimum headroom clearance for <br />slainvays should Ue indiwted on plans. Section <br />3305 (o). Notc Iliat lhis is trom a plane tan- <br />gent lo Ihe slainvay tread nosings. <br />306: � Ramp slopes should not cacced one foot in <br />............................_. leet. Seclion 3306 (c) (dj. <br />307: Surfacc of ramps shmdd bc rounhencA or ol a <br />nonslip matcrial. Seetion 3396 (f). <br />308 ° Stainvays should bc endosed as specilied in <br />Seclion 3308. <br />(a) One (hvo)�hour lirrresistive walls arc re� <br />quired. <br />(b) Only ezit doors are allowed to open into exit <br />enclosures. <br />(c) Doors should be labeled one (one�and�one� <br />hall)�hour firc . ssr.mblics. <br />(d) Ezit enclosures should include a corridor an <br />thc ground floor exlending to the eztcrior. <br />Fire�resistive constructian should be as rc� <br />quired tor lhe ezit endosure, includinF pro� <br />tected openings. Only eait door5 are per� <br />mitted to open into the [orridor. <br />(e) An approvecl barrier is mqdirrd at the <br />�round tloor lo P�event peoplc 1rom acci• <br />dentally continuing to lhe lower Ievel. <br />(f) Usable spacc is not allowed under ihe <br />stairs. <br />309.�� One ezit from the huilding should be a smoke- <br />_proof enclosw�e complying with Sectian 3309. <br />I10. Openines into ezit courts Icss ;han 10 feet nide <br />should he protecleU with labeled AS�ininute fire <br />assembiies. Section 3310 (d). Also see "exit <br />eourt" delinition in Section 3301 (c). OpeninGs <br />rnorc than 10 feet above the court floor are <br />ezempt. <br />lll. No openinGs other lhan required cxits are perv <br />milteA in exit passaGeways. Thc passa�;eways <br />should bc of ......._........._.... •hour firrresislivc <br />construction. Section 3311 (a). <br />112. Exit illumination and siC��s shoulA bc provided in <br />conformance with Seciion 3312. <br />1i3. Aisle (cross aisle) in auditor.um shouid have a <br />minimum widlh of ........._...._...._......_ Section <br />3313 (b). Seclion 3313 (e). <br />11A. Panic liardwarc is required or, ezit doors sen�'ng • <br />Group � Occupancics havinG an occupant loatl <br />of morc than 100. Section 331G (a). In licu <br />of this, doors shall have no loCks or I:Aches. <br />175Y Main and sidc r.aitr. in conformance witi� S_c <br />tion 3315 are reyuired tor 8�2 (1) Occupaneies. <br />Seciion 331G (a). <br />116.` Corridors of Group C Oaupancies should have a <br />width required by Section 3302 plu; 2 leel, but <br />not Iess than G IceL Seetion 3317 (r). <br />117 � Each Iloor abovc or bclow thc Cround fioor Icvel <br />ol Grnup C Ottup�ncics ;hould havc no Icss <br />�han two ezit slairs. Sedion 33ll (G)� <br />1](l� �Lxit stairs scrvin[; an ocr.upan[ load o! morr <br />fimn ]00 in a Group C Occupancy shoWd havc <br />n miniinum cic;u widlh of 5 fceL Section 3317 <br />(!;) <br />119.� Fve�y romn with �n ocr.upinl load excecding <br />30O shculd h�vr oim ol ils cr.its inlo ;: sep�ralc <br />cait syslcni. Seclinn 3J17 (b). <br />