Laserfiche WebLink
82.` <br />A floor or landing not more than 1 inch below <br />the threshold is required on •ach side of an <br />exit door. Section 3303 (h). <br />83." <br />Doors should not project more than 7 inches in. <br />to the required corridor width when fully <br />opened or more than one half into the required <br />corridor width when in any position. Section <br />3304(d)........................................................... <br />84.' <br />Revolving (sliding) (overhead) doors are not per <br />mitted as exit doors. Section 3303 (f). <br />85." <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 />86.'1Corridors <br />should have a minimum width of 44 <br />inches. Section 3304 (b). <br />87.1 <br />Corridors serving nonambulatory persons should <br />have ra 8-foot minimum width. Section 3318 <br />(c) <br />88., <br />Dead end of corridors and exit balconies are <br />limiter to 20 feet. Section 3304 (f�. <br />89.1 <br />Walls and ceilings of corridors should be of one - <br />hour fire -resistive construction. Section 3304 <br />(g). An architectural section through the corri- <br />dor is necessary to determine how this is <br />accomplished. <br />90. <br />Exter.or ,it balconies cannot project into an <br />area where protected openings are required <br />due to location on property. Section 3304 (i). <br />.......................................................................... <br />91.` <br />Interior openings into corridors should be pro- <br />tected as gecified in Section 3304 (h). <br />92. <br />Stairway .................................... should have <br />mn wiuth of . a miniru................... inches. Trim <br />and handt2uh should not project more than <br />31/, Inches into the required width. Section <br />3305 (b). <br />93: <br />Risers c.t stairways should not exceed 72/2 <br />inches and runs should not be less than 10 <br />inches. Section 3305 (c). <br />94. <br />Landings on stairways should have a dimension <br />in the direction of travel equal to the width of <br />the stairway but need not exceed 4 feet. Sec. <br />tion 3305 (f). <br />95. <br />Landings should not be reduced in width more <br />than 31/r inches by a door when fully open. <br />Section 3305 (U. <br />96' <br />Basement portion of stairways should have an <br />approved barrier where continuous to upper <br />floors in an exit enclosure. Section 3305 (g). <br />97.' <br />ve-tical distances between stairway Iandin(,s are <br />limited to 12 feet. Section 3305 (h). <br />98. <br />I liandrails should be placed not less than 30 <br />nor more than 34 inches above the <br />ead. Section 3305 (i). Two­ttandralls'are-re- <br />lquincheq <br />fred-where-stinways exceed 44-inches-in <br />dth.- <br />99. <br />Guardrails lot stairs, balconies, and landings <br />should conform with Section 1714. Note that <br />maximum clearance between intermediate rails <br />is 9 inches. <br />IDD.1 <br />Openings in exterior walls within 10 feet of <br />exterior stairways should be protected with <br />self closing threc•fourths.hour fire -resistive as. <br />somblics. Section 3305 (k). <br />101.1 <br />Enclosed usable space under Interior stairways <br />should be protected on the enclosed side as <br />requited for one -hour lire-resislive eonstruc. <br />lion. Section 3305 (1). <br />102. <br />Noncombustible exterior stairs are required. <br />Section 3305 (m). <br />103.' <br />Exterior stairs should not project into an area <br />(yards or courts) where wall openings must be <br />protected. Section 3305 (in), <br />104.- <br />One stairway should , xtend to the roof. Section <br />3305 (n). It must be in a smokeproof enclosure <br />in buildings over 75 feet in height. Section <br />3309 (b). _ <br />105.' <br />Six-foot 6-inch minimum headroom clearance for <br />stairways should be indicated on plans. Section <br />3305 (o). Note that this is from a plane tan- <br />gcnt to the stairway tread nosings. <br />306." <br />Ramp slopes should not exceed one foot in <br />................................ feet. Section 3306 (c) (d). <br />107.]Surface <br />of ramps should be roughened or of a <br />nonslip material. Section 3306 (f). <br />306.' <br />Stairways should be enclosed as specified in <br />Section 3308. <br />(a) One (two) -hour fireresislive walls are re- <br />quired. <br />to) Only exit doors are allowed to open into exit <br />enclosures. <br />(e) Doors should be labeled one (one-andone- <br />half)-hourfire assemblies. <br />(d) Exit enclosures should include a corridor on <br />the ground floor extending to the exterior. <br />Fire -resistive construction should be as re- <br />quired for the exit enclosure, including pro• <br />tected openings. Only exit doors are per. <br />mitted to open into the corridor. <br />(e) An approved barrier is required at the <br />ground floor to prevent people front acci- <br />dentally continuing to the lower level. <br />(f) Usable space is no; allowed under the <br />stairs. <br />.............................................................................. <br />]09. <br />One exit from the building shculd be a smoke. <br />prooI enclosure complying with Section 3309. <br />130. <br />Openings into exit courts less than 30 feet wide. <br />should be protected with labeled 45-minute fire <br />assemblies. Section 331C (d). Also see "exit <br />court" definition in Section 3301 (c). Openings <br />more than 10 feet above the court floor are <br />e :em pt. _ <br />' <br />111. <br />No openings other than required exits are per. <br />mitred in exit passageways. The passageways <br />should be of .........................hour fire -resistive <br />construction. Section 3311 (a). _ <br />112." <br />Exit illumination and signs should be provided in <br />conformance with Section 3312. <br />12V <br />Aisle (cross aisle) in auditorium should Mrve a <br />width of ............................... S.:ction <br />3313 (b). Section 3313 (e). <br />114. <br />(II -minimum <br />meanie hardwarc is required on exit doors serving <br />Group R Occupances having an occupant load <br />of more than 100. Section 3316 (a). In lieu <br />of this, doors shall have no locks or Iz tches- , <br />115. <br />:Main and slue exits in conformance with Sec. <br />tion 3315 are required for B•2 (1) Occupancies. <br />Section 3316 (a). <br />116.- <br />Corridors of Group C Occupancies should have a <br />width required by Section 3302 plus 2 feet, but <br />not less than 6 feet. Section 3317 (e). <br />117.- <br />Each floor above or below the Cround floor level <br />of Group C Occupancies should have no less <br />than two exit stairs. Section 3317 (D). <br />1181' <br />Exit stairs serving an occupant load of more <br />than 100 in a Group C Occupancy should have <br />a minimum clear width of 5 feet. Section 3317 <br />W0 _ <br />Every room with an occupant load exceeding <br />T <br />300 should have one of its exits into a separate <br />exit system. Section 3317 (b). <br />