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U. <br />A floor or landinz not more than 1 inch below <br />the tbrrftold is required on each side of an <br />exit dnor. Section 3303 (h). <br />E3. <br />oaors should not project more clan 7 iuchas in- <br />to lire reqtrited corridor. width when fully <br />opened or more titan one lnlf into tare require" <br />corridor width when In tiny position. Section <br />3304(d).................. _....................................... <br />81. <br />Revolving (r.Gdinrt) (overhead) doors are not per, <br />milled as exit doors. Section 3303 (f). <br />E5. <br />Exit doors should provide Immediate access to <br />an approved means of egress. Section 3303 <br />(g). Exiting through another room does not <br />comply. <br />E'r <br />Cotridors should have a minimum width of 44 <br />inches. Section 3304 (b). <br />E7. <br />Corridor sawing uonambut:dory persons should <br />have an 0•fool minimum width. Section 3318 <br />(c). <br />B. <br />Dead end of corridors and exit balconies are <br />limited to 20 feet. Section 3304 (f). <br />E9. <br />and ceilings of corridors should be of one• <br />hnur firc•resistive construction. -Section 3304 <br />(Walls <br />(g). An architectural section through the corri- <br />dor is necessary !o determine Italy this ix <br />accomplished. <br />91. <br />Cxledor exit balconies control project into an <br />area where protected openhtgs are required <br />due to location on property. Section 3304 (i)... <br />91. <br />Interior openings into corridors should be pro- <br />tected as specified In Section 3304 (h). <br />- <br />92. <br />Stahwa .... should havo <br />a minimum vndlh of .................... inches. Prim <br />and handrails should not project more than <br />31/,, Inches into the required width. Section <br />3365 (b). <br />i <br />93. <br />Risers- an stairways should not exceed 71h <br />Inches and runs should not be less than 10 <br />inches. Section 3305 (c). <br />9,. <br />Landings on stairways should have a dimension <br />In the direction of travel equal to the width of <br />Ilia stairway but need not exceed 4 feet. Sec• . <br />Lion 3305 (Q. <br />95. <br />Landings should not be reduced in width more <br />Ithan 31/t inches by a door when fully open. <br />Section 3305 (Q. _ <br />95. <br />Basement portion of stairways should have an <br />approvedbarrier where continuous to upper <br />tloota in an exit enclosure. Section 3305 (0)• <br />91.1 <br />Verticaf distances belwaon stairway lancift.4 are <br />limited to 12 feet. Section 3305 (h). <br />9a <br />Randrails should be placed not less than 3(r <br />Inches tier more than 34 inches above the <br />tread. Section 3305 (1). Two handrails are re- <br />quired tdtere stairways exceed 44 inches )n <br />width. <br />S. <br />Guardrails for stairs, baleanies. and landings <br />Should conform with Section 1714. Note that <br />maximum clearance between Intermediate rails <br />IV 9 inches. <br />11V. <br />Opaniugs in exterior walls within 10 feet of <br />cxlcwor stairways should be protected vgth <br />scf-closfog thrce•luurths•hour fire -resistive as• <br />semblics. Section 3305 (k). <br />101. ' Enclosed usable space *under Interior Stairways. <br />should be protected on line enclosed side ss <br />requited for one-hnur fite•rasishve eouslrue- <br />,tion. seclinn 31.09 (1). <br />are rcquiled. <br />147eteuC?.Cq' <br />Exterior smits should not project into an area <br />(yards or courts) where wall openings must heprotected. <br />Section 3305 (in). <br />E <br />Onostairwaysitoutd extend to the tool. Section <br />3305 (n). Il must be in a sntokeproof enclosure <br />In buildings over 75 fact In -height. Section <br />3309 (b). <br />Six-foot 6-Inch minimum licadrooin clearance for <br />stairways. shnuld be indicated on plans. Section <br />3305 (o). Nine drat this is from a plane tan- <br />gent to the stairway tread nosings. ' <br />106. <br />Ramp •lopo�hould not exceed one. foot in <br />.T.k•AC.l.,.............. feet. Section 3306 (c) (d). <br />•mot <br />307. <br />Sew; ce of ramps should be roupaened or of a <br />nonslip material. Section 3306 (t). <br />103 <br />Stairways should be,enclosed as specifie•t in <br />Section 3308. <br />(a) One (two) -hour Iire•resislive walls are re- <br />qulred. <br />(b) Only exit doors are allowed to open into exit <br />• enclosures. <br />(c) Doors should be labeled one (one and -one- <br />half) -hoar lite assemblies. - <br />(d) Exit enclosures should include a corridor on <br />the Ground floor extending to the exterior. <br />• Flre•resisbve construction should he as re- <br />quired for the exit enclosure, including pro• <br />tected openings. Only exit doors are per- <br />mitted to open Into lire corridor. <br />(a) An approved barrier is required at the <br />ground floor to prevent people front acci- <br />dentally coutinldng to the lower level. <br />(f) Usable space is not arllowed tinder the <br />stairs. <br />.......................... .... ............................... _........ <br />309. <br />One exit from the building should be a smoke - <br />proof enclosure complying with Section 3309. <br />I10. <br />Openings into exit courts less than 10 feel wide <br />should be protected with labeled 45•minuto fire <br />assemblies. Section 33)0 (d). Also see "exit <br />court" definition in Section 3301 (e). Openinus <br />more than 10 feet above the court floor ore <br />exempt. <br />' <br />111. <br />No openings other than required exits are per- <br />mitted in exit passaneways. The passageways <br />should be of ........................ •hour fire -resistive <br />construction. Section 3311 M. <br />112.w <br />Exit illumination and signs should be provided in <br />conformance with Section 3312. <br />M. <br />Aisle (cross aisle) in auditorium should have a <br />minimum width of ............... ....... _...... Section <br />3313 (b). Section 3313 (a). <br />i14. <br />.manic hardware is required on exit doors serving <br />Group B Occupancies having an occupant load <br />of more than 100. Section 3316 (a). In lieu <br />of this, doors shall have no locks or latches. <br />115. <br />:lain and side exits in cnntormance with Sec- <br />tion 33)5 are required for U:2 (1) Occupancies. <br />Section 3316 M. <br />I IG. <br />Corridurs of Group C Occupancies should have a <br />width required by Section 3302 plus 2 fact, bill <br />not less (hall 6 feet. Sccltoo 3317 (a). _ <br />117. <br />Each floor alcove or below the ground floor level <br />of Group C Occupancies should have no Icss <br />Ihan Iwo exit stairs. Section 3317 (G)• <br />lit). <br />Exit stalls serving an occupant load of more <br />Ilion 100 in a Group C Occupancy should haw. <br />a minimum clear width of b Itet. Section 3317 <br />W)• <br />]19. <br />Every room wall an aceupant load exceeding <br />' <br />300 should It -Iwo mu: of it-, c•Cils into a aepntalu <br />nrit •.vJ,•„t Sr, lion 3'liY fat. <br />