The detail shows a structural steel wide-flange beam encased in sprayed-on fireproofing material. The beam supports a concrete slab on metal deck above, with batt or rigid insulation fitted between the upper flanges adjacent to the web. Notes indicate specific UL assembly numbers for 1-hour and 2-hour fire ratings.
FIRE-PROOFING AT BEAM 1 HR BEAM ASSEMBLY: UL 263 NO. D759, NO. D796, OR NO. N759 2 HR BEAM ASSEMBLY : UL 263 NO. D796 OR NO. N759
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