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enclosure

  1. LaNouba

    Elevator Enclosure Fire-Rating | Mezzanines

    2018 IBC I have an elevator serving 3 mezzanine levels within 1 story/room. By definition, the mezzanine levels are open to the story/room. The elevator hoistway penetrates the mezzanines, and does not abut to other walls/rooms/spaces. You can walk around the 4 sides of the hoistway at ground...
    • LaNouba
    • Thread
    • concealed elevator enclosure mezzanine shaft
    • Replies: 1
    • Forum: Elevators
  2. S

    Fire Separation of Rooftop Exit Enclosures

    This is the interpretation of Fire Separation of Rooftop Exit Enclosures: https://boabc.org/wp-content/uploads/2021/07/File-No-18-0100.pdf "The walls of the rooftop exit stair would be exterior walls, and Sentence 3.1.7.3.(3) states "Exterior walls shall be rated for exposure to fire from...
    • sunyaer
    • Thread
    • enclosure exit fire separation rooftop
    • Replies: 3
    • Forum: Canada
  3. V

    Stair Support in Exit Enclosure

    I have read the earlier discussion on the topic of structural penetrations of a rated exit enclosure, but I remain unclear as to what is permissible. We are working on a 5 story, Type II-B building. Vermont has replaced IBC chapter 1000 with NFPA 101 for matters of m.o.e. We have a 2-hr wall...
  4. Bobbi_O

    Atrium Enclosure?

    Hello all I need a little help with this: NYS 2015 code: I am reviewing a 'B' occupancy with a 2 story atrium that connects the two stories and main corridor areas which is rated. The design currently does not enclose the atrium, just have a railing around the open side. So the 2 levels of...
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