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stair enclosure beam

  1. BayPointArchitect

    Detail for 2-hr fire-rated stair enclosure

    Hey there fellow code gurus. Given that a steel beam is supporting a part of a two-hour fire-rated stair enclosure, and that the underside of this beam needs to be fire protected, does that level of protection need to be one-hour below the beam with the top side protected by a one-hour floor...
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