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Michigan Department of Licensing and Regulatory Affairs Bureau of Construction Codes

Michigan Department of Licensing and Regulatory Affairs Bureau of Construction Codes. Means of Egress Chapter 10. Irvin J. Poke, AIA, Director 2 Hours Plan Review. 1001 Administration.

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Michigan Department of Licensing and Regulatory Affairs Bureau of Construction Codes

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  1. Michigan Department of Licensing and Regulatory AffairsBureau of Construction Codes

  2. Means of Egress Chapter 10 Irvin J. Poke, AIA, Director 2 Hours Plan Review

  3. 1001 Administration • Provides that all buildings and portions thereof shall be provided means of egress in accordance with this chapter • It shall be unlawful to alter a building or structure in a manner that reduces the number or capacity of means of egress. • Means of egress shall be maintained in accordance with the International Fire Code

  4. 1002 Definitions • These definitions apply to this chapter • Definitions in Chapter 2 apply to all chapters of the code • Pay attention to the definitions that have a line in the margin as they have changed or are new

  5. 1003 General Means of Egress • Section 1003.2 has new exception 6, 7 and 8 for ceiling height • Ramp head room in accordance with section 1010.5.2 • Vehicle and pedestrian traffic areas in accordance with section 406.2.2 • Areas above and below mezzanines in accordance with section 505.1

  6. 1004 Occupant Load • This section has not changed from the 2006 edition of the code • Be mindful that Table 1004.1.1 identifies functions and not use groups

  7. 1005 Egress Width • Exit width is 0.3 per occupant for stairways and 0.2 per occupant for other elements • Table 1005.1has been deleted • Added section 1005.3 Door Hardware Encroachment to exempt surface mounted hardware

  8. 1006 Means of Egress Illumination • Illumination of means of egress is required to 1 footcandle at the walking surface • Illumination is required to be on emergency power

  9. 1007 Accessible Means of Egress • Provides for Accessible Means of Egress though elevators, stairs and areas of refuge • 2009 Sections 1007.6.4 Instructions, 1007.6.5 Identification and 1007.7 Signage were deleted and a new Section 1007.8 Two-way Communication created • The new Section 1007.8 provides • System Requirements • Directions • Signage • Instructions

  10. 1008 Doors, Gates, and Turnstiles • Section 1008.1.1.1 Projections in clear width added an exception for stops and closures to reduce the headroom to 78 inches • Section 1008.1.2 Door Swing added exception 9 to allow sliding doors in other than H occupancies • Revolving Doors added item 5 to not allow revolving doors in an accessible route

  11. 1008 Doors, Gates, and Turnstiles • Section 1008.1.9.3 Locks and latches added item 5 to allow fire doors after a minimum elevated temperature has disabled the unlatching mechanism • Section 1008.1.9.4 Bolt locks added • Exception 3 to allow bolts in B,F & S with less than 50 • Exception 4 to allow bolts in B,F & S with fire sprinklers • Exception 4 to allow bolts in patient care areas of I-2

  12. 1008 Doors, Gates, and Turnstiles • Section 1008.1.9.5.1 Closet & Bathroom doors in group R-3 added to require that bathroom and closet door being able to be unlocked for outside • Section 1008.1.9.6 Special locking arrangements in Group I-2 added • Section 1008.1.9.9 Locking arrangements in correctional facilities added • Section 1008.1.10 Panic and Exit hardware is revised

  13. 1009 Stairways • Section 1009.2 Headroom added exception 2 for R-3, R-2 and U that are accessory to allow treads to extend 4 ¾ inches into the required headroom • Section 1009.3 Walkline added to address the walkline of winder treads • 1009.4.1 Dimensional reference surfaces added to state all dimensions are exclusive of carpet

  14. 1009 Stairways (cont.) • Section 1009.4.2 Rise height Tread depth added exception 2 for ship ladders • Section 1009.7 Vertical rise Added exception 2 for alternating stairs to allow a 20 foot vertical rise • Section 1009.11 Ship ladders added • 1009.14 Stairways to elevator equipment added

  15. 1010 Ramps • There are some language changes in this section • Section 1010.9 Edge Protection added exception 4 to not require edge protection in assembly areas with fixed seating

  16. 1011 Exit Signs • There are some language changes in this section • Section 1011.1 revised exception 4 to include an exemption for dayrooms in I-3 occupancies

  17. 1012 Handrails • Section 1012.3 Handrail Graspability added an exception to allow handrails to be equivalent with type I or type II handrails • Section 1012.3.1 defines a type I handrail • Section 1012.3.2 defines a type II handrail • Section 1012.4 Continuity add exception 4 to allow obstruction at rail that are bumper guards • Section 1012.6 Handrail Extensions provides for alternating stairways

  18. 1013 Guards • Section 1013.1.1 Glazing added to reference Section 2407 • Section 1013.2 Height exception 2 added for a guard used as a handrail to be not less than 34 inches and not more than 38 inches • 1013.3 Opening Limitations added exception 1 to allow openings in a guard from 34 inches to 38 inches to be 4 7/8 inches

  19. 1014 Exit Access • Section 1014.2.2 Group I-2 was revised to delete exceptions 2 through 5 of the 2006 edition addressing suites • Sections 1014.2.3, 1014.2.4 and 1014.2.5 were added to address suites

  20. 1015 Exit and Exit Access Doors • Section 1015.1 Exit and Exit Access Doorways requirements and exceptions are reorganized. A new exception is added for R-2 and R-3 with an occupant load not more than 20

  21. 1016 Exit Access Travel Distance • Section 1016.1 Travel distance limitation • Language is revised • Exception 3 and 4 revised to address H and I occupancies • The Roof Vent Increase in 2006 section 1016.2 is deleted

  22. 1017 Aisles • Section 1017 New section added to address aisles for certain seating, tables, furnishings and merchandise

  23. 1018 Corridors, 1019 Egress Balconies • Some language revisions for clarification

  24. 1020 Exits • No change from 2006 Michigan Building Code

  25. 1021 Number of Exits & Continuity • Section 1021 renamed Exits from Stories and change language • Exceptions • 1. As modified by Section 403.5.2 • 2. As modified by Section 1021.2 • 3. Stairway and ramps the comply with exception 3 and 4 of 1016 • 4. R-2 and R-3 one egress for maximum occupant load of 20 • 5. Space complying with 1015.1

  26. 1022 Exit Enclosures • Section 1022.1 Enclosures exception 4 in 2006 edition is deleted • Exceptions 8 and 9 of 2006 regarding H and I occupancies deleted and moved. • Exception 7 is added to address balconies, galleries and pressboxes • Section 1022.8 revised language

  27. 1022 Exit Enclosures • Section 1022.8.1 Signage Requirements provides minimum dimensional requirements • 1022.9 Termination and extensions title and language revised and exception 3 added regarding fire barriers and smoke enclosures

  28. 1023 Exit Passageways • Sections 1023.3 and 1023.5 have language revisions • Section 1023.4 Termination is added to require the all exits terminate at an exit discharge or public way

  29. 1024 Deleted Luminous Pathway Markings • This section is in the International Building Code and is deleted in the Michigan Building Code • It is believed that this section is not cost effective • It is also believed that the requirement are a maintenance issue

  30. 1025 Horizontal Exits • Section 1025.1 Horizontal Exits language in the last paragraph of exception 2 is deleted • Section 1025.2 Separation has language revisions • Section 1025.4 Capacity of refuge area added language to the end of the section

  31. 1026 Exterior Ramps & Stairways, 1027 Exit Discharge, 1028 Assembly • These sections have some language revisions

  32. 1029 Emergency Escape & Rescue • There are no changes from the 2006 edition

  33. Contact the Bureau • Bureau of Construction Codes Web Page • www.michigan.gov/bcc • Bureau of Construction Codes Mail • P.O. Box 30254 Lansing, MI 48909 • Plan Review Division • Phone 517 241 9328 • Fax 517 241 9308

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