3120 HEWITT AVE 2018-01-02 MF Import

M I 12 82. floor or landing not more than 1 inch below 1A the threshold is required on each side of an exit door. Section 3303 (h). 83. Doors should not project more than 7 inches in- to the required corridor width when fully opened or more than one half into the required corridor width when in any position. Section 33D4(d)........................................................... 84. Revolving (sliding) (overhead) doors are not per- mitted as exit doors. Section 3303 (f). 85. Exit doors should provide immediate access to an approved means of egress. Section 3303 (g). Exiting through another room does not comply. 86. Corridors should have a minimum width of 44 Inches. Section 3304 (b). 87. Corridors serving nonambulatory persons should have an 8-foot minimum width. Section 3318 (c). 88. Dead end of corridors and exit balconies are limited to 20 feet. Section 3304 (f). 89. Walls and ceilings of corridors should be of one. hour fire -resistive construction. Section 3304 (g). An architectural section through the corri. dor is necessary to determine how this is accomplished. 90.1 Exterior exit balconies cannot project into an area where protected openings are required due to location on property. Section 3304 (1). .......................................................................... 91. Interior openings into corridors should be pro. 1 tected as specified in Section 3304 (h). 92. Stairway .......................................... should have a minimum width of .................... inches. Trim and handrails should not project more than 3t/t Inches into the required width. Section 33l)5 (b). 93. Risers on stairways should not exceed 71/z inches and runs should not be less than 10 inches. Section 3305 (c). 94. Landings on stairways should have a dimension In the direction of travel equal to the width of the stairway but need not exceed 4 feet. Sec. tion 3305 (f). " 95. Landings should not be reduced in width more than 3t/2 inches by a door when fully open. Section 3305 (f). 96. Basement portion of stairways should have an approved barrier where continuous to upper floors in an exit enclosure. Section 3305 (g). 97. IVertical distances between stairway Iandin&6 are limited to 12 feet. Section 3305 (h). / 98.1 Handrails should be placed not less than 30 inches nor more than 34 inches above the tread. Section 3305 (1). Two handrails are re• quired where stairways exceed 44 inches in width. 99. for stairs, balconies, and landings should conform with Section 1714. Note that 1Guardrails maximum clearance between intermediate rails is 9 inches. 100. Openings in exterior walls within 10 feet of exterior stairways should be protected with self -closing three -fourths hour fire -resistive as. semblies. Section 3305 (k). lot. Enclosed usable space under interior stairways should be protected on file enclosed side as required for one -hour fire resistive eonstruc tion. Section 3305 (1). 102. Noncombustible exterior stairs are required. Section 3305 (m). 13, O 103. Exterior stairs should not project into an area (yards or courts) where wall openings must be protected. Section 3305 (m). 104.' One stairway should extend to the roof. Section 3305 (n). It must be in a smokeproof enclosure in buildings over 75 feet in height. Section 3309 (b). 105:' Six-foot 6-inch minimum headroom clearance for stairways should be indicated on plans. Section " 3305 (0). Note that this is from a plane tan• gent to the stairway tread nosings. 106. Ramp slopes should not exceed one foot in .:.......... ................... feet. Section 3306 (c) (d). 107Y Surface of ramps should be roughened or of a nonslip material. Section 3306 (f). 10B. Stairways should be enclosed as specified in Section 3308. ' (a) One (two) -hour fire -resistive walls are re- - - quired. O Only exit doors are allowed to open into exit enclosures. (e) Doors should be labeled one (one -and -one- half) -hour fire assemblies. (d) Exit enclosures shou!d include a corridor on the ground floor extending to the exterior. Fire -resistive construction should be as re- quired for the exit enclosure, including pro- tected openings. Only exit doors are per- mitted to open into the corridor. (a) An approved barrier is required at the ground floor to prevent people from acci- dentally continuing to the lower level. (f) Usable space is not allowed under the stairs ............................................................... 109.1 One exit from the building should be a smoke - proof enclosure complying with Section 3309. 110. Openings into exit courts less than 10 feet wide should be protected with labeled 45-minute fire assemblies. Section 3310 (d). Also see "exit court" definition in Section 3301 (c). Openings more than 10 feet above the court floor are i_ exempt. 111. No openings other than required exits are per- mitted in exit passageways. The passageways should be of fire -resistive .........................hour construction. Section 3311 (a). 112.1 Exit illumination and signs should be provided In conformance with Section 3312. 113. Aisle (cross aisle) in auditorium should have a minimum width of ............................... Section 3313 (b). Section 3313 (e). 114. Oanic hardware is required on exit doors serving Group B Occupancies having an occupant load of more than 100, Section 3316 (a). In lieu of this, doors shall have no locks or latches. 115. Mam and side exits in conformance with Sec- tion 3315 are required for B-2 (1) Occupancies. Section 3316 (a). 116.� Corridors of Group C Occupancies should have a width required by Section 3302 plus 2 feet, but not less than 6 feet. Section 3317 (e). 117. Each floor above or below the ground floor level of Group C Occupancies should have no less than two exit stairs. Section 3317 (g). 11B.' Exit stairs serving an occupant load of more than 100 in a Group C Occupancy should have a minimum clear width of 5 feet. Section 3317 (g)• 119.' Every room with an occupant load exceeding 300 should have one of its exits into a separate exit system. Section 3317 (b).