2015 ibc means of egress 1 - bianewbianew.org/yahoo_site_admin/assets/docs/2015_ibc... · – ibc...

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Note: WI amendment for this section

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Boaraa

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Corridor Fire-Resistance Rating IBC Table 1026.1

• Note that Table 1026.1 does not allow for corridors to be constructed in various non-sprinklered occupancies

– This is an important fact for those buildings having an R-2 occupancy which do not have an automatic sprinkler system installed per NFPA 13 or 13R See footnote c.

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Corridors & Elevator LobbiesIBC 3006.2 vs 1020.6

• IBC 3006.2 requires that elevator lobbies be provided unless a listed exception is met—Review IBC 3006.3

• Note that even if the exception for application of IBC 3006.2 is met, the Designer must construct the corridor so as to meet the requirements of IBC 1020.6

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• Additionally, note that if the elevator opens into a fire rated corridor, then there shall be actions to either:

– 1) isolate the elevator shaft openings from directly opening into a rated corridor, or else…

– 2) install smoke protection on the doors of the elevator in order to fulfill the requirements of IBC 1020.6.

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Corridors & Elevator LobbiesIBC 3006.2 vs 1020.6

Corridor ProtectionIBC 1020.6

• Example 1 recognizes the inclusion of an elevator lobby/corridor with 20 minute smoke and draft control assembly in the doors located between the elevator lobby and the fire rated corridor

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IBC 2015 Code & Commentary

Corridor ProtectionIBC 1020.6

• Example 2 recognizes the use of 20 minute smoke and draft control assemblies placed over the elevator entry points which require 1-1/2 hour fire protection rated assemblies

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IBC 2015 Code & Commentary

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Won-Door Fire & Security Solutions

Corridor ProtectionIBC 1020.6

• Example 3 allows a fire rated corridor to extend to 20 minute fire rated smoke and draft control door assemblies which allows one to enter an elevator lobby. The lobby could be entered by multiple fire rated corridors. Note that enclosed elevator lobbies as permitted by Item 1 of Section 1016.2 shall not be construed as intervening rooms.

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IBC 2015 Code & Commentary

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Posting of Occupant Load

• Every room or space that is an assembly occupancy shall have the occupant load of the room or space posted in a conspicuous place near the main exit or exit access doorway from the room or space.

• Must be of approved legible permanent design and be maintained by owner or their agent

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Openings in a Interior Exit Stairway IBC 1023.4

• Openings in interior exit stairways and ramps, other than unprotected exterior openings, shall be limited to those necessary for exit access to the enclosure from normally occupied spaces and for egress from the enclosure

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Openings in a Interior Exit Stairway IBC 1023.4

• Examples of spaces that are not allowed to open into the Interior Exit Stairway:

– Laundry Rooms

– Closets

– Toilet Rooms

– Janitor Closets

– Mechanical Rooms

– Electrical Rooms133

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Mechanical Room

“Corridor”Fire Rated Stairwell

One way to meet the intent of the code is to create a corridor between these spaces and fire rated stairwell

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Storage access from within the fire rated stairwell is not allowed

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Storage access from within the fire rated stairwell is not allowed

Openings in an Interior Exit Stairway IBC 1023.4 & 3002.7

• Elevators shall not open into interior exit stairways and ramps

– Exception: Open parking garages.

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Enclosures Under Interior Stairways IBC 1011.7.3

• The walls and soffits within enclosed usable spaces under enclosed and unenclosed stairways shall be protected by 1-hr fire resistance rated construction or the fire resistance rating of the stairway enclosure, whichever is greater. Access to the enclosed space shall not be directly from within the stairway enclosure.

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Avar

What are your

thoughts?

143Inhabitat.com

No storage under lowest landing, but at least it's sprinklered, and has a “guard” !!

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Enclosures Under Exterior Stairways IBC 1011.7.4

• No usable space under exterior exit stairways unless the space is completely enclosed in 1 hr fire resistance rated construction. The open space under exterior stairways shall not be used for any purpose.

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A

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Stairway Identification Signs

• A sign shall be provided at each floor landing in an interior exit stairway and ramp connecting more than 3 stories designating the floor level, the terminus of the top and bottom of the interior exit stairway and ramp and the identification of the stairway or ramp.

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Discharge IdentificationIBC 1023.8

151Randy Dahmen

Discharge IdentificationIBC 1023.8

• An interior exit stairway and ramp shall not continue below its level of exit discharge unless an approved barrier is provided at the level of exit discharge to prevent persons from unintentionally continuing into levels below.

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153Pacific Stair Corporation

154Pacific Stair Corporation

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Luminous Egress Path Markings IBC 1025

• Approved luminous egress path marking delineating the exit path shall be provided in high-rise buildings(occupied floor located more than 75 ft above the lowest level of fire dept. access) of Group A, B, E, I, M and R-1 occupancies

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Luminous Egress Path Markings IBC 1025

• Steps –

– Req’r solid and continuous stripe applied to horizontal leading edge of each step and extend for the full length of the step.

– Outlining stripes to be 1” min. or 2” maximum

• Exception

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Luminous Egress Path Markings IBC 1025

• Handrails & Handrail Extensions –

– Marked with a solid and continuous stripe with minimum width of 1”

– Stripe shall be placed on the top surface of the handrail for the entire length of the handrail, extensions & newel post caps.

• Exception

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Luminous Egress Path Markings IBC 1025

• Perimeter Demarcation Lines –

– Stair landings & other floor areas within interior exit stairways, interior exit ramps and exit passageways, with exception of the sides of steps, shall be provided with solid and continuous demarcation lines on the floor or on the walls or both

– Outlining stripes to be 1” min. or 2” maximum

• Exception

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Luminous Egress Path Markings IBC 1025

• Wall-Mounted Demarcation Lines

– Perimeter demarcation lines shall be placed on the wall with the bottom edge of the stripe not more than 4” above the finished floor

– Where the wall line is broken by a door, demarcation lines on the walls shall continue across the face of the door or transaction the floor and extend across the floor in front of such door.

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Luminous Egress Path Markings IBC 1025

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Luminous Tape

Randy Dahmen

Luminous Egress Path Markings IBC 1025

• Obstacles

– Obstacles at or below 6’ 6” in height and projecting more than 4” into the egress path shall be outlined with markings not less than 1” in width, comprised of a pattern of alternating equal bands in width, consisting of luminous material and black. With alternating bands not more than 2” thick and angled at 45o

– Could include standpipes, hose cabinets, wall projections and restricted height areas.

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Such markings cannot conceal any required information or indicators including, and not be limited to, instructions to occupants for the use of the standpipes

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Emergency Power for IlluminationSection 1008.3

• Item of discussion

– Where is emergency lighting required to be installed in an enclosed parking area requiring a minimum of 2 exits?

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Interior Parking Ramp

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Emergency Power for IlluminationSection 1008.3

• Item of discussion

– IBC 1008.1, 1008.3 and 2702.2.11: Is the use of occupancy sensors permitted as a way of complying with IBC section 1008.1 and assuring the means of egress is illuminated when the space served is occupied?

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Emergency Power for IlluminationSection 1008.3

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Answer: Yes, the use of automatic controls, like occupancy sensors, is an acceptable way of conserving energy while also assuring the lights will be on during normal use of the spaces. When employing such automatic controls, their use must be incorporated into the design such that they will be overridden by the emergency power system upon loss of normal power. In essence, the switch controllers must be equipped for fail-safe operation. – Review UL 924 listed sensors (May 1, 2018)

Eaton

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Emergency lighting is required to be extended from the required bldg exit to exit discharge where there are 2

ways of travel. In this case, that location is at the bottom of the exterior ramp.

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Emergency lighting is required to be extended from the required bldg exit to exit discharge where there are 2

ways of travel. In this case, that location is at the bottom of the exterior ramp.

Any Questions?

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