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stair enclosure

  1. admiralArchArch

    IBC 1023.7 - Interior exit stairways and exterior walls

    I got flagged in permit review for not addressing this section of 2018 IBC. I have a type VA building with 1-hour exterior bearing walls and 2-hour shafts (4 story R2 on 1 story S-2 garage). Does 1023.7 apply if my walls are already 1-HR per table 601 and 705.5? What about the openings? Could...
  2. Harrison Staab

    Excellent Two Buildings, Shared Egress

    For two connected buildings, separated by a fire wall, can both required/provided exits of one be via rated interior stairways that are part of the other building? Please note: For purpose of this question, Building 2 is not to be considered a separate Fire Area that could be part of Building 1.
  3. M

    Fire Enclosure Method at Stair Underside

    I am designing a building where the staircase is required to be enclosed with 2-hour fire-rated construction. I would like to utilize the space underneath the stairs in the cellar. How can I enclose the stairs from the underside? Is the only option a horizontal ceiling membrane such as UL design...
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