MEANS OF EGRESS - ecodes.biz

1 2014 OREGON FIRE CODE143 CHAPTER 10 MEANS OF EGRESSSECTION General. Buildings or portions thereof shall be pro-vided with a MEANS of EGRESS system as required by this chap-ter. The provisions of this chapter shall control the design,construction and arrangement of MEANS of EGRESS componentsrequired to provide an approved MEANS of EGRESS from struc-tures and portions thereof. Sections 1003 through 1029 shallapply to new construction. Section 1030 shall apply to exist-ing : Detached one- and two-family dwellings andmultiple single-family dwellings (townhouses) not morethan three stories above grade plane in height with a sepa-rate MEANS of EGRESS and their accessory structures shallcomply with the International Residential Alterations to existing MEANS of EGRESS . It shall beunlawful to alter a building or structure in a manner that willreduce the number of exits or the capacity of the MEANS ofegress to less than required by this Abatement of buildings and structures with inade-quate MEANS of EGRESS .

2 Buildings or structures that are notprovided with adequate MEANS of EGRESS or emergencyescapes are unsafe and shall be subject to the abatement pro-cedures specified in Section 110. When abatement is byrepair, or rehabilitation, MEANS of EGRESS and emergencyescapes shall be provided and maintained in accordance withthe Oregon Structural Specialty code . Such unsafe buildings are hereby declared to be public nui-sances and shall be abated by repair, rehabilitation, demoli-tion, or removal. See the abatement procedures specified inOregon Administrative Rule (OAR) 837-041-0050. Actionsto correct hazards and other deficiencies shall be in accor-dance with Oregon Revised Statutes (ORS) , 1002 DEFINITIONS[B] Definitions. The following terms are defined inChapter 2:[B] ACCESSIBLE MEANS OF EGRESS . [B] AISLE. [B] AISLE ACCESSWAY.

3 [B] ALTERNATING TREAD DEVICE. [B] AREA OF REFUGE. [B] BLEACHERS. [B] COMMON PATH OF EGRESS TRAVEL. [B] CORRIDOR. [B] DOOR, BALANCED. [B] EGRESS COURT. [B] EMERGENCY ESCAPE AND RESCUEOPENING. [B] EXIT. [B] EXIT ACCESS. [B] EXIT ACCESS DOORWAY. [B] EXIT ACCESS RAMP. [B] EXIT ACCESS STAIRWAY. [B] EXIT DISCHARGE. [B] EXIT DISCHARGE, LEVEL OF. [B] EXIT, HORIZONTAL.[B] EXIT PASSAGEWAY. [B] FIRE EXIT HARDWARE. [B] FIXED SEATING. [B] FLIGHT. [B] FLOOR AREA, GROSS. [B] FLOOR AREA, NET. [B] FOLDING AND TELESCOPIC SEATING. [B] GRANDSTAND. [B] GUARD. [B] HANDRAIL. [B] INTERIOR EXIT RAMP. [B] INTERIOR EXIT STAIRWAY. [B] MEANS OF EGRESS . [B] MERCHANDISE PAD. [B] NOSING. [B] OCCUPANT LOAD. [B] PANIC HARDWARE. ORS , , and OAR 837-041-0050 are nota part of this code but are reproduced or paraphrased here for thereader s defines the provisions for granting a permit forcontinuous use or occupancy of existing nonconforming provides authority to the State Fire Marshal ordeputies to order repair or removal of materials from buildings provides authority to the State Fire Marshal ordeputies to close buildings when the occupant load is 837-041-0050 defines the rules for the abatement, repair ordiscontinuance of use or occupancy of unsafe buildings andspecifies the parameters that are used to determine the degree offire and life hazards.

4 Page 143 Thursday, January 16, 2014 8:48 AMMEANS OF EGRESS1442014 OREGON FIRE code [B] PHOTOLUMINESCENT. [B] PUBLIC WAY. [B] RAMP. [B] SCISSOR stair . [B] SELF-LUMINOUS. [B] SMOKE-PROTECTED ASSEMBLY SEATING. [B] stair . [B] STAIRWAY. [B] STAIRWAY, EXTERIOR. [B] STAIRWAY, INTERIOR. [B] STAIRWAY, SPIRAL.[B] WINDER. [B] SECTION 1003 GENERAL MEANS OF Applicability. The general requirements specified inSections 1003 through 1013 shall apply to all three elementsof the MEANS of EGRESS system, in addition to those specificrequirements for the exit access, the exit and the exit dis-charge detailed elsewhere in this Ceiling height. The MEANS of EGRESS shall have a ceil-ing height of not less than 7 feet 6 inches (2286 mm).Exceptions:1. Sloped ceilings in accordance with Section the International Building Ceilings of dwelling units and sleeping units withinresidential occupancies in accordance with of the International Building Allowable projections in accordance with stair headroom in accordance with Section Door height in accordance with Section Hallways and corridors shall be permitted to be notless than 7 feet (2134 mm) in Ramp headroom in accordance with The clear height of floor levels in vehicular andpedestrian traffic areas in parking garages in accor-dance with Section of the InternationalBuilding Areas above and below mezzanine floors in accor-dance with Section of the International Build-ing Protruding objects.

5 Protruding objects shall complywith the requirements of Sections through Headroom. Protruding objects are permitted toextend below the minimum ceiling height required by Sec-tion provided a minimum headroom of 80 inches(2032 mm) shall be provided for any walking surface,including walks, corridors, aisles and passageways. Notmore than 50 percent of the ceiling area of a MEANS ofegress shall be reduced in height by protruding : Door closers and stops shall not reduceheadroom to less than 78 inches (1981 mm).A barrier shall be provided where the vertical clearanceis less than 80 inches (2032 mm) high. The leading edge ofsuch a barrier shall be located 27 inches (686 mm) maxi-mum above the Post-mounted objects. A free-standing objectmounted on a post or pylon shall not overhang that post orpylon more than 4 inches (102 mm) where the lowestpoint of the leading edge is more than 27 inches (686 mm)and less than 80 inches (2032 mm) above the walking sur-face.

6 Where a sign or other obstruction is mountedbetween posts or pylons and the clear distance between theposts or pylons is greater than 12 inches (305 mm), thelowest edge of such sign or obstruction shall be 27 inches(686 mm) maximum or 80 inches (2032 mm) minimumabove the finished floor or : These requirements shall not apply to slop-ing portions of handrails between the top and bottomriser of stairs and above the ramp Horizontal projections. Structural elements,fixtures or furnishings shall not project horizontally fromeither side more than 4 inches (102 mm) over any walkingsurface between the heights of 27 inches (686 mm) and 80inches (2032 mm) above the walking : Handrails are permitted to protrude 41/2inches (114 mm) from the Clear width. Protruding objects shall not reducethe minimum clear width of accessible Floor surface.

7 Walking surfaces of the MEANS ofegress shall have a slip-resistant surface and be Elevation change. Where changes in elevation of lessthan 12 inches (305 mm) exist in the MEANS of EGRESS , slopedsurfaces shall be used. Where the slope is greater than oneunit vertical in 20 units horizontal (5-percent slope), rampscomplying with Section 1010 shall be used. Where the differ-ence in elevation is 6 inches (152 mm) or less, the ramp shallbe equipped with either handrails or floor finish materials thatcontrast with adjacent floor finish :1. A single step with a maximum riser height of 7inches (178 mm) is permitted for buildings withoccupancies in Groups F, H, R-2, R-3, S and U atexterior doors not required to be accessible byChapter 11 of the International Building A stair with a single riser or with two risers and atread is permitted at locations not required to beaccessible by Chapter 11 of the International Build-ing code , provided that the risers and treads complywith Section , the minimum depth of the treadis 13 inches (330 mm) and at least one handrailcomplying with Section 1012 is provided within 30 Page 144 Wednesday, January 15, 2014 12:28 PMMEANS OF EGRESS2014 OREGON FIRE CODE145 TABLE FLOOR AREA ALLOWANCES PER OCCUPANTFor SI: 1 square foot = m2.

8 A. Floor area in square feet per OF SPACEOCCUPANT LOAD FACTORaAccessory storage areas, mechanical equipment room 300 grossAgricultural building 300 grossAircraft hangars 500 grossAirport terminalBaggage claimBaggage handlingConcourseWaiting areas 20 gross300 gross100 gross15 grossAssembly Gaming floors (keno, slots, etc.) Exhibit gallery and museum11 gross30 netAssembly with fixed seats See Section without fixed seatsConcentrated (chairs only not fixed)Standing spaceUnconcentrated (tables and chairs) 7 net5 net15 netBowling centers, allow 5 persons for each lane including 15 feet of runway, and for additional areas 7 netBusiness areas 100 grossCourtrooms other than fixed seating areas 40 netDay care 35 netDormitories 50 grossEducationalClassroom areaShops and other vocational room areas 20 net50 netExercise rooms 50 grossGroup H-5 Fabrication and manufacturing areas 200 grossIndustrial areas 100 grossInstitutional areasInpatient treatment areasOutpatient areasSleeping areas 240 gross100 gross120 grossKitchens, commercial 200 grossLibraryReading roomsStack area 50 net100 grossLocker rooms 50 grossMall buildings covered and openSee Section of the International Building CodeMercantileAreas on other floorsBasement and grade floor areasStorage, stock.

9 Shipping areas 60 gross30 gross300 grossParking garages 200 grossResidential 200 grossSkating rinks, swimming poolsRink and poolDecks 50 gross15 grossStages and platforms 15 netWarehouses 500 grossinches (762 mm) of the centerline of the normal pathof EGRESS travel on the A step is permitted in aisles serving seating that hasa difference in elevation less than 12 inches (305mm) at locations not required to be accessible byChapter 11 of the International Building code , pro-vided that the risers and treads comply with and the aisle is provided with a handrailcomplying with Section a story in a Group I-2 occupancy, any changein elevation in portions of the MEANS of EGRESS that serve non-ambulatory persons shall be by MEANS of a ramp or MEANS of EGRESS continuity.

10 The path of EGRESS travelalong a MEANS of EGRESS shall not be interrupted by any build-ing element other than a MEANS of EGRESS component as speci-fied in this chapter. Obstructions shall not be placed in therequired width of a MEANS of EGRESS except projections per-mitted by this chapter. The required capacity of a MEANS ofegress system shall not be diminished along the path ofegress Elevators, escalators and moving walks. Elevators,escalators and moving walks shall not be used as a compo-nent of a required MEANS of EGRESS from any other part of : Elevators used as an accessible MEANS ofegress in accordance with Section [B] SECTION 1004 OCCUPANT Design occupant load. In determining MEANS ofegress requirements, the number of occupants for whommeans of EGRESS facilities shall be provided shall bedetemined in accordance with this section.