2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011
Advanced Means of Egress in Commercial Buildings – Applications of Chapter Presented By: Kenneth G. Larsen, CBO October 23, 2013 Based on the 2009 IBC & 2012 Update Changes International Building Code

Introductions About me About you

Objectives List and describe each of the three parts of a means of egress. Identify the seven fundamental means of egress design issues. Calculate the occupant load and determine the required means of egress capacity. Determine the required number of exits.

Objectives Determine the requirements for arrangement of the means of egress facilities including: The remote location of doors and exits. The exit access travel distance. The common paths of egress travel. The egress through adjoining spaces. Determine the requirements for fire-resistance-rated construction for egress elements.

Objectives Determine the requirements for design of egress elements. Determine requirements for door hardware. Determine requirements for locations and amounts of means of egress lighting and signage. Evaluate the adequacy of a horizontal exit as part of a means of egress plan.

Objectives Evaluate the means of egress in assembly spaces. Determine requirements for exit access widths in smoke-protected assembly seating. Evaluate the adequacy of accessible means of egress.

2012 IBC Means of Egress Administration and Definitions 1001,1002 General Means of Egress Components of Means of Egress Exit Access Exits Exit discharge 1027 Miscellaneous Assembly 1028 Emergency Escape and Rescue 1029

2012 IFC Means of Egress New Construction Provisions duplicated from IBC Existing Construction IFC provisions only 1030

Means of Egress issues Number of occupants, and total width of egress elements. Number of exits required. Location of means of egress elements. Fire-resistance-rated construction. Component design. Hardware. Lighting and signage.

3 Parts of a Means of Egress
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 3 Parts of a Means of Egress Exit access Exit Exit discharge

3 Part Means of Egress First appeared in NFPA 101 Life-safety Code Focuses on Zone Approach to Identifying were an Occupant is at any one time in a Building Provides for Differing Levels of Fire Resistive Construction premised on each of the 3 Zones.

Exit Access

Exit

Exit Discharge

Occupant Load/ Means of Egress Capacity
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Occupant Load/ Means of Egress Capacity Design occupant load Fixed seating Number by combination Increased occupant load Exiting from multiple levels Egress convergence Mezzanine levels Outdoor areas

Definition (Section 1002 & 202 Floor area

Cumulative Occupant Loads( Section 1004.1.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Cumulative Occupant Loads( Section

Design Occupant Load section 1004.1.
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Design Occupant Load section

TABLE MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT OCCUPANCY FLOOR AREA IN SQ FT PER OCCUPANT Assembly with fixed seats See Assembly without fixed seats Concentrated (chairs only—not fixed) Standing space Unconcentrated (tables and chairs) 7 net 5 net 15 net Business areas 100 gross Educational Classroom area Shops and other vocational room areas 20 net 50 net Kitchens, commercial 200 gross Library Reading rooms Stack area 50 net 100 gross

Determine the Occupant Load for the Following Condition:
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Determine the Occupant Load for the Following Condition: Business Office Location Sq ft Sq ft /Occupant Occupant Load Conference Room Office Area 475  15 32 2,825 100 29  61

Determine the occupant load for the Following Condition:
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Determine the occupant load for the Following Condition: Business Occupancy Location Sq ft ÷ Sq ft /Occupant Occupant Load Offices 18,000  100 180

Determine the occupant load for the Following Condition
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Determine the occupant load for the Following Condition Business Occupancy with Conference Rooms Location Sq ft Sq ft /Occupant Occupant Load Conference Rooms Remainder 475  15 32 132  15 9 1,020  15 68 16,373  100 164  273

Table MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT OCCUPANCY FLOOR AREA IN SQ FT PER OCCUPANT Assembly with fixed seats See Assembly without fixed seats Concentrated (chairs only—not fixed) Standing space Unconcentrated (tables and chairs) 7 net 5 net 15 net Business areas 100 gross Educational Classroom area Shops and other vocational room areas 20 net 50 net Kitchens, commercial 200 gross Library Reading rooms Stack area 50 net 100 gross

Determine the occupant load for the Following Conditions: Auditorium = 353 2.2 Educational Occupancy Location Sq ft Sq ft /Occupant Occupant Load Classrooms Lecture Computers Storage Remainder 2,775  20 139 4,384  7 627 1,769  20 89 900  300 3 5,244  100 53  1,264

Determine the occupant load for the Following Conditions:
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Determine the occupant load for the Following Conditions: Educational Occupancy Location Sq ft Sq ft /Occupant Occupant Load Classrooms Labs Storage Remainder 6,090  20 305 5,897  50 118 900  300 3 5,113  100 52  478

Table MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT OCCUPANCY FLOOR AREA IN SQ FT PER OCCUPANT Assembly with fixed seats See Assembly without fixed seats Concentrated (chairs only—not fixed) Standing space Unconcentrated (tables and chairs) 7 net 5 net 15 net Business areas 100 gross Educational Classroom area Shops and other vocational room areas 20 net 50 net Kitchens, commercial 200 gross Library Reading rooms Stack area 50 net 100 gross

Determine the occupant load of the Following Condition:
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Determine the occupant load of the Following Condition: Assembly – A-2 Location Sq ft  Sq ft /Occupant Occupant Load Cafeteria 2,928  15 196 Mixed-Use Occupancy Location Sq ft Sq ft /Occupant Occupant Load T.V. Lounge Kitchen Office Lecture Classrooms Remainder 1,800  15 120 1,200  200 6 5,400  100 54 2,034  7 291 944  20 48 3,694  100 37  752

Increased Occupant Load Section 1004.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Increased Occupant Load Section

Exiting From Multiple Levels Section Egress Convergence Section

Exiting From Multiple Levels Section Egress Convergence Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Element Occupant Load Served Required Width Stair-point ‘A’ 200 60” Stair-point ‘B’ 150 60”1 Stair-point ‘C’ 240 72” Stair-point ‘D’ 45” Stair-point ‘E’ 3902 78” 1Required width from above must be maintained. 2Door at point ‘E’ serves occupant from ‘C’ and ‘D’ egress convergence per IBC

Mezzanine Levels Section 1004.1.1.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Outdoor Areas Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Application Example Assuming exit serves 200 people Nonsprinklered building Occupant other than H-1, H-2, H-3, H-4, or I-2

Application Example IBC

Application Example Multiple means of egress must be sized that the loss of any one will not reduce the available capacity to less than 50% of the required capacity.

Application Example 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 OK: The loss of any single exit will not result in less than half of required width remaining.

Application Example 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Not permitted: Loss of single exit could result in less than half of required width remaining.

Application Example OK: Although double doors give greater than half of available width, not less than half of required width would still remain.

2012 IBC MOE WIDTH FACTORS EGRESS WIDTH PER OCCUPANT SERVED OCCUPANCY WITHOUT SPRINKLER SYSTEM WITH SPRINKLER SYSTEMa Stairway (inches per occupant) Other egress components (inches per occupant) Stairways (inches per occupant) Occupancies other than those listed below 0.3 0.2 Hazardous: H-1, H-2, H-3 and H-4 NA Institutional: For SI: 1 inch = 25.4 mm. NA = Not applicable aBuildings equipped throughout with an automatic sprinkler system in accordance with Section or NOTE: See & for EMERGENCY VOICE/ALARM COMMUNICATION SYSTEM for MOE Width Reductions

MOE EGRESS WIDTH 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Calculate the Stairway capacity: Stairways Component Clear Width  Inches per Occupant Occupant Load Stair Doors Stair Run Stair Capacity 32 in.  0.2 160 44 in.  0.3 146  Calculate the Horizontal Exit capacity: Horizontal Exit Component Clear Width  Inches per Occupant Occupants Doors 32 in.  0.2 160

WORKSHEET

Calculate the capacity of the exits serving the Following Conditions:
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Calculate the capacity of the exits serving the Following Conditions: Business Occupancy Stairs Horizontal exit = Occupants 3(146) = Business Occupancy Stairs Horizontal exit = Occupants 2(146) =

Worksheet 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Calculate the capacity of the exits serving the Following Condition.
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Calculate the capacity of the exits serving the Following Condition. Business Occupancy Door to outside + Horizontal exit + Exit passageway + Stair = Occupants 4(160) (160) = 1,266 Business Occupancy Door to outside + Horizontal exit + Exit passageway + Stair = Occupants 4(160) =

WORKSHEET

Minimum Number of Exits Table 1021.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Minimum Number of Exits Table Access to at least three exits when occupant load served is 501 to 1,000.

Minimum Number of Exits Section 1021.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Minimum Number of Exits Section Access to at least four exits when occupant load exceeds 1,000.

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Minimum Number of Exits Section The required number of exits from any story, basement or individual space must be maintained until arrival at grade or the public way.

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Minimum Number of Exits Section TABLE Minimum number of exits for occupant load Occupant load Minimum Number of Exits 1-500 2 501-1,000 3 More than 1,000 4

Building with One Exit Section 1021.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Building with One Exit Section TABLE BUILDINGS WITH ONE EXIT OCCUPANCY MINIMUM HEIGHT OF BUILDING ABOVE GRADE PLANE MAXIMUM OCCUPANTS (OR DWELLING UNITS) PER FLOOR AND TRAVEL DISTANCE A, B, E, F, M, U 1 Story 49 occupants 75’ H-2, H-3 3 occupants and 25’ H-4, H-5, I, R 10 occupants and 75’ S 29 occupants and 100’ B, F, M, S 2 Stories 30 occupants and 75’ R-S 2 & 3 Stories 4 dwelling units and 50’

EXIT ACCESS Common Path of Egress Travel Section In occupancies other than Groups H-1, H-2 and H-3, the common path of egress travel shall not exceed 75 feet ( mm). In occupancies in Groups H-1, H-2 and H-3, the common path of egress travel shall not exceed 25 feet (7620 mm). NOTE: The 2012 IBC modifies the Common Path of Travel for Business Occupancies based on Occupant Load, <30 100’, >30 – 75’. Increase for Sprinkler Systems to 100’

Exit Access Common Path of Egress Travel Section Exceptions: The length of a common path of egress travel in an occupancy in Groups B, F and S shall not be more than 100 feet ( mm), provided that the building is equipped throughout with an automatic sprinkler system installed in accordance with Section Where a tenant space in an occupancy in Groups B, S and U has an occupant load of not more than 30, the length of a common path of egress travel shall not be more than 100 feet ( mm).

Exit Access Common Path of Egress Travel Section TABLE (partial) SPACES WITH ONE MEANS OF EGRESS OCCUPANCY MAXIMUM OCCUPANT LOAD A, B, E, F, M, U 49 S 29

WORKSHEET

Section MINIMUM NUMBER OF EXITS FOR OCCUPANT LOAD OCCUPANT LOAD MINIMUM NUMBER OF EXITS 1-500 2 501-1,000 3 More than 1,000 4

2012 IBC Table (2) TABLE (2)(partial) BUILDINGS WITH ONE EXIT OCCUPANCY MAXIMUM HEIGHT OF BUILDING ABOVE GRADE PLANE MAXIMUM OCCUPANTS (OR DWELLING UNITS) PER FLOOR AND TRAVEL DISTANCE A, Bd, E, F, M, S, U 1 Story 49 occupants and 75’ Bb, F, M, 29 occupants and 100’ Sa 2 Stories 29 occupants and 75’

Exit or Exit Access Doorways Required Sections 1014-1016
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit or Exit Access Doorways Required Sections Egress through intervening spaces Common path of egress travel Exit or exit access doorways required Exit access doorway arrangement/separation Travel distance limitations

Exit or Exit Access Doorways Required Section 1015.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit or Exit Access Doorways Required Section TABLE SPACES WITH ONE MEANS OF EGRESS OCCUPANCY MAXIMUM OCCUPANT LOAD A, B, E, F, M, U 49 H-1, H-2, H-3 3 H-4, H-5, I-1, I-3, I-4, R 10 S 29

Exit or Exit Access Doorway Arrangement Section 1015.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit or Exit Access Doorway Arrangement Section

Exception 1:

Exception 2:

Egress Through Intervening Spaces Section 1014.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress Through Intervening Spaces Section Kitchens, storerooms, closets or spaces used for similar purposes. Exception: M Occupancies

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress Through Intervening Spaces Section Egress from dwelling units or sleeping areas must not lead through other sleeping areas, toilet rooms.

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress Through Intervening Spaces Section A high-hazard occupancy: Exception: When space to be entered is the same occupancy group.

Exit Access Travel Distance Section 1016.3
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Access Travel Distance Section

Exit Access Travel Distance Section 1016
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Access Travel Distance Section 1016

Example: A, E, F-1, I-1, M, R or S-1 Occupancy
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Example: A, E, F-1, I-1, M, R or S-1 Occupancy

Travel Distance Limitations Section Roof Vent Increase – Deleted in 2012 IBC (2006 IBC Sec )

Exterior Egress Balcony Increase Section 1016.2.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exterior Egress Balcony Increase Section 1016.1

Travel Distance Section 1016.3 Exception

Travel Distance Section 1014.3

Dead Ends Section

EXIT ACESS Egress through intervening spaces Section 1014.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 EXIT ACESS Egress through intervening spaces Section Egress from a room or space shall not pass through adjoining or intervening rooms or areas, except where such adjoining rooms or areas are accessory to the area served; are not a high-hazard occupancy; and provide a discernible path of egress travel to an exit. Egress shall not pass through kitchens, storage rooms, closets or spaces used for similar purposes. An exit access shall not pass though a room that can be locked to prevent egress. Means of egress from dwelling units or sleeping areas shall not lead through other sleeping areas, toilet rooms or bathrooms.

WORKSHEET

Two Exit or Exit Access Doorways Section 1015.2.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Two Exit or Exit Access Doorways Section Where two exits or exit access doorways are required, from any portion of the exit access, the exit doors or exit access doorways shall be placed a distance apart equal to not less than one-half of the length of the maximum overall diagonal dimension of the building or area to be served measured in a straight line between exit doors or exit access doorways.

Two Exit or Exit Access Doorways Section 1015.2.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Two Exit or Exit Access Doorways Section Exception: 2 Where a building is equipped throughout with an automatic sprinkler system in accordance with Section or , the separation distance of the exit doors or exit access doorways shall not be less than one-third of the length of the maximum overall diagonal dimension of the area served.

WORKSHEET

TABLE EXIT ACCESS TRAVEL DISTANCE OCCUPANCY WITHOUT SPRINKLER SYSTEM (feet) WITH SPRINKLER SYSTEM (feet) A, E, F-1, I-1, M, R, S-1 200 250b B 300c F-2, S-2, U 300 400b

Exit Access Travel Distance Section 1016
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Access Travel Distance Section 1016 Exits shall be so located that the maximum length of exit access travel, measured from the most remote point to the entrance to an exit along the natural and unobstructed path of egress travel, shall not exceed the distances given in Table

Egress through intervening spaces Section 1018.4
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress through intervening spaces Section Where more than one exit or exit access doorway is required, the exit access shall be arranged such that there are no dead ends in corridors more than 20 feet (6096 mm) in length.

Egress through intervening spaces Section 1014.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress through intervening spaces Section Exceptions: In occupancies in Groups B and F where the building is equipped throughout with an automatic sprinkler system in accordance with Section , the length of dead-end corridors shall not exceed 50 feet ( mm). A dead-end corridor shall not be limited in length where the length of the dead-end corridor is less than 2.5 times the least width of the dead-end corridor.

Exit Access Identify and evaluate dead-end corridors.
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Access Identify and evaluate dead-end corridors.

WORKSHEET

Common Path of Egress Travel Section 1014.3
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Common Path of Egress Travel Section In occupancies other than Groups H-1, H-2 and H-3, the common path of egress travel shall not exceed 75 feet ( mm). In occupancies in Groups H-1, H 2, and H-3 the common path of egress travel shall not exceed 25 feet (7620 mm).

Common Path of Egress Section 1014
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Common Path of Egress Section 1014 Exceptions: The length of a common path of egress travel in an occupancy in Groups B, F and S shall not be more than 100 feet ( mm), provided that the building is equipped throughout with an automatic sprinkler system installed in accordance with Section 2. Where a tenant space in an occupancy in Groups B, S and U has an occupant load of not more than 30, the length of a common path of egress travel shall not be more than 100 feet ( mm).

Fire-resistance-rated Construction of Elements
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Fire-resistance-rated Construction of Elements Corridor Construction Exit Enclosures Required Enclosure Construction Vertical Enclosure Exterior Walls Enclosure Under Stairways Discharge Identification Exit Passageway Exterior Exit Stairways Exterior Ramps and Stairways Protection

Corridor Construction Section 1018.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Corridor Construction Section The corridor walls must comply with the provisions of IBC Section 708. Corridors must be fire-resistance rated in accordance with IBC Table

Interior Exit Stairways and Ramps Section 1022.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Interior Exit Stairways and Ramps Section Interior exit stairways shall be enclosed as specified in IBC 1022.

Section Office area occupant load <10 2nd story

2012 IBC Section 1022

Exit Continuity Section Enclosure Required Section Opening and Penetrations Section

Exit Enclosure Exterior Walls Section 1022.2 & 711

Enclosure Under Stairways Section 1009.2.2 & 1022
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Enclosure Under Stairways Section & 1022

Discharge Identification Section 1022.8
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Discharge Identification Section

Exit Passageway Section 1023.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Passageway Section

Exit Passageway Section 1023
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exit Passageway Section 1023

Exterior Exit Stairways Section 1026.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exterior Exit Stairways Section

Exterior Ramps and Stairways Protection Section Exceptions 1, 2 and 3

Exterior Ramps and Stairways Protection Section Exceptions 1, 2 and 3 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

EXIT ACCESS CORRIDORS TABLE CORRIDOR FIRE-RESISTANCE RATING OCCUPANCY OCCUPANT LOAD SERVED BY CORRIDOR REQUIRED FIRE-RESISTANCE RATING (hours) Without sprinkler system With sprinkler systemsc H-1, H-2, H-3 All Not Permitted 1 H-4, H-5 Greater than 30 A, B, E, F, M, S, U R Greater than 10 0.5 I-2a, I-4 I-1, I-3 1b

EXIT ACCESS Corridor Width Section 1018.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 EXIT ACCESS Corridor Width Section The minimum corridor width shall be as determined in Section , but not less than 44 inches (1118 mm). Exceptions: Thirty-six inches (914 mm)—With a required occupant capacity of 50 or less. Thirty-six inches (914 mm)—Within a dwelling unit. Seventy-two inches (1829 mm)—In Group E with a corridor having a required capacity of 100 or more.

Egress Element Component Design
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress Element Component Design General Means of Egress Stairways Ramps Corridors Doors, Gates and Turnstiles Number of Exits and Continuity

Ceiling Height Section 1003.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Ceiling Height 7’6”

Horizontal Projections Section 1003.3.3

Elevation Change Section 1003.5
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Elevation Change Section

Elevation Change Section 1003.5

Stairways Section 1009

Stairway Width Section 1009.4
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Width Section

Headroom Clearance Section 1009.5

Stair Treads and Risers Section 1009.7
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stair Treads and Risers Section

Stair Profile Section

Stair Treads and Risers Section 1009.7.2

Stair Treads and Risers Section 1009.4.4

Stairway Landings Section 1009.8
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Landings Section There shall be a floor or landing at the top and bottom of each stairway or stair run

Stairway Landings Section 1009.8
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Landings Section But need not exceed 48”

Stairway Construction Section 1009.9
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Construction Section

Stairway Walking Surface Section 1009.9.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Walking Surface Section

Vertical Rise Section

Curved Stairways Section 1009.11
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Curved Stairways Section

Winders Section 1009

Spiral Stairways Section 1009.9
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Spiral Stairways Section

Handrails Section 1009.15 Stairway Construction Section 1009.3.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Handrails Section Stairway Construction Section

Handrail Height Section 1012.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Handrail Height Section

Intermediate Handrails Section 1012.9

Handrail Graspability Section 1012.3

Handrail Graspability Section 1012.3.1 Type I

Handrail Graspability Section 1012.3.2 Type II
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Handrail Graspability Section Type II

Handrails Extensions Section 1012.6
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Handrails Extensions Section

Slope Section

Width Section

Landings Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Doorways Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Handrails Section

Edge Protection Section 1010.10 Exceptions
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Edge Protection Section Exceptions Not required on ramps not required to have handrails, provided they have flared sides that comply with the ICC A117.1 curb ramp provisions No required on the sides of ramp landings serving an adjoining ramp run or stairway Not required on the sides of ramp landings have a vertical dropoff of no more than 0.5” within 10” horizontally of the required landing area

Curb, Rail, Wall or Barrier Section 1010.10.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Curb, Rail, Wall or Barrier Section

Exceptions Section

Corridor Width Section 1018.2

Elevation Change Section 1003.5 Corridors Width Section 1018.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Elevation Change Section Corridors Width Section

Example: (12 x 45) x Corridor B = = = in. Corridor A = = = 63 in. [(8 x 45) + (12 x 45) / 2] x

Corridors Section 1018

Corridors Section 1018 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Corridors Section 407.3 Construction Section 1018.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Corridors Section Construction Section

Doors Section Egress doors must be really distinguishable from the adjacent construction. Mirrors or similar reflecting materials must not be used on egress doors. Egress doors must not be concealed by curtains, decorations or similar materials.

Doors Section Doors installed for egress purposes in numbers greater than those required by the code must conform to all provisions of the IBC

Size of Doors Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Size of Doors Section

Door Swing Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Door Swing Section

Floor Elevation at Doors Section 1008.1.5
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Floor Elevation at Doors Section

Exception 1.1 Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Exception 2 Section

Landings at Doors Section 1008.1.6 Stairway Landings Section 1009.8
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Landings at Doors Section Stairway Landings Section

Thresholds Section

Exception:

Door Arrangement Section 1008.1.8
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Door Arrangement Section

WORKSHEET Identify any door swing problems.
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 WORKSHEET Identify any door swing problems.

Door Hardware Door Swing Revolving Doors Special Doors Security Grilles Door Operations Locks and Latches Bolt Locks Delayed Egress Locks Panic and Fire Exit Hardware

Door Swing Section

Revolving Doors Section 1008.1.4.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Revolving Doors Section

Power-Operated Doors Section 1008.1.4.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Power-Operated Doors Section

Door Operations Section 1008.1.4.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Door Operations Section

Locks and Latches Section 1008.1.9.3

Bolt Locks Section 1008.1.9.4, Exceptions
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Bolt Locks Section , Exceptions Doors in individual dwelling units that are not required for egress. The “inactive” leaf of a pair of doors, which serve a storage or equipment room.

Bolt Locks Section

Delayed Egress Locks Section 1008.1.9.7

Panic and Fire Exit Hardware Section 1008.1.10
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Panic and Fire Exit Hardware Section

Panic and Fire Exit Hardware – Stadiums Section 1008.2.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Panic and Fire Exit Hardware – Stadiums Section

Lighting and Signage Exit Signs Internally Illuminated Exit Signs Power Source Stairway Floor Number Signs Egress Illumination Illumination Emergency Power

Exit Signs Section 1011 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Exit Signs Section 1011

Exceptions Section 1011 Main exterior exit doors, which obviously and clearly are identifiable as exits when approved by the building official Rooms or areas that require only one means of egress R-3 and U Occupancies; guest rooms in R-1; dwelling units in R-2; sleeping rooms or areas including those in I-3 A-4 and A-5 Occupancies—on seating side of complying vomitories

Internally Illuminated Exit Signs Section Externally Illuminated Exit Signs Section

Power Source Section

Stairway Floor Number Signs Section 1022.9.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Stairway Floor Number Signs Section

Egress Illumination Section 1006.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress Illumination Section

Illumination Emergency Power Section 1006.3
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Illumination Emergency Power Section

Horizontal Exits Horizontal Exit Separation Capacity of Refuge Area Travel Distance Limitations Horizontal Exits

Horizontal Exit Section 1025.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Horizontal Exit Section

Separation Section 2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

Capacity of Refuge Area Section 1025.4
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Capacity of Refuge Area Section

Horizontal Exit Section 1025.1 Example
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Horizontal Exit Section Example

Horizontal Exit Section 1025.4 Example
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Horizontal Exit Section Example

Travel Distance Limitations Section Horizontal Exits Section

Assembly Seating Egress From Group A Occupancies Smoke-protected Assembly Seating Width of Means of Egress for Assembly Width of Means of Egress for Outdoor Smoke-protected Assembly Travel Distance

Egress from Group A Occupancies Section 1028
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Egress from Group A Occupancies Section 1028 Assembly with occupant load> 300 50% of occupant load (not less than total required width of all egress components leading to exit) Interior stairways shall be enclosed. Exception: Stairs between balcony and main assembly floor in theaters, churches and auditoriums Minimum of 3 exits for occupant load > 500 Minimum of 4 exits for occupant load of more than 1000

Smoke-protected Assembly Seating Section 1028.6.2
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Smoke-protected Assembly Seating Section

Width of Means of Egress for Assembly Section Smoke-Protected Seating Table TABLE WIDTH FOR AISLES FOR SMOKE-PROTECTED ASSEMBLY TOTAL NUMBER OF SEATS IN THE SMOKE-PROTECTED ASSEMBLY OCCUPANCY INCHES OF CLEAR WIDTH PER SEAT SERVED Stairs and aisle steps with handrails within 30 inches Stairs and aisle steps without handrails within 30 inches Passageways, doorways and ramps not steeper than 1 in 10 in slope Ramps steeper than 1 to 10 in slope Equal to or less than 5,000 0.200 0.250 0.150 0.165 10,000 0.130 0.163 0.100 0.110 15,000 0.096 0.120 0.070 0.077 20,000 0.076 0.095 0.056 0.062 Equal to or greater than 25,000 0.60 0.075 0.044 0.048

Width of Means of Egress for Outdoor Smoke-Protected Assembly Section Exception EXAMPLES – SMOKE PROTECTION Occupant Loads IBC (inside) IBC (outdoor) Stair <30” to handrail Level or ramp <1:10 5,000 1,000” 10,000 1,300” 20,000 1,520” 30,000 1,800” 750” 400” 300” 1000” 800” 600” 1120” 1520” 1320” 1800” 1300”

Travel Distance Section 1028.7

Lobbies and Vestibules
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Lobbies and Vestibules Minimum Number of Exits General Exit Discharge

EXIT DISCHARGE Section 1027.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 EXIT DISCHARGE Section

Exit Discharge Section 1027 Exception 1

Exit Discharge Section 1027 Exception 2

Accessible Means of Egress
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Accessible Means of Egress Accessible route Stairways within exit enclosures Elevators Horizontal exits Smoke barriers

Scoping Requirements for Accessible Means of Egress
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Scoping Requirements for Accessible Means of Egress Definitions Accessible Means of Egress Buildings with Four or More Stories Alterations

Elements of An Accessible Means of Egress
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Elements of An Accessible Means of Egress Definitions Accessible Means of Egress Accessible Means of Egress Required Elevators required Exit Stairways Platform Lifts Signage Exterior Area for Assisted Rescue Horizontal Exit

Exit Doors Section Concerns with exit doors include: Maneuvering clearances Clear width. Operating controls within reach ranges and hardware options Distances between doors in vestibules.

Elevators Section In building with five or more stories: At least one elevator with emergency power. High rises have no exceptions allowed. Exceptions: Fully sprinklered buildings with horizontal exits. Fully sprinklered buildings with ramps. Standby power for the elevators is required for High rises.

Enclosed Stairways Enclosed Exit Stairways Identification Stairway Landings Vertical Exit Enclosures Other Signs

Means of Egress Elements Sections 1002.1 and 1007.1
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Means of Egress Elements Sections and

Scoping Requirements for Areas of Refuge
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Scoping Requirements for Areas of Refuge Enclosed Exit Stairways Elevators Areas of Refuge Separation Horizontal Exits

Technical Requirements for Areas of Refuge
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Technical Requirements for Areas of Refuge Fire Department Communications System Fire Department Communication System Areas of Refuge Size Two-Way Communication

Travel Distance Areas of Refuge Exit Access Travel Distance

Maximum Travel Distance to an Area of Refuge Section 1007.6
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Maximum Travel Distance to an Area of Refuge Section

Separate Travel Distances to an Exit and an Area of Refuge Section

Signage Identification Signage Signs Other Signs

Exterior Area of Assisted Rescue
2009 IBC Egress Issues in Commercial Buildings, May 25, 2011 Exterior Area of Assisted Rescue Accessible Means of Egress Required Exterior Area for Assisted Rescue Openness

2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

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2009 IBC Egress Issues in Commercial Buildings, May 25, 2011

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