Fire Resistance Ratings: beam_membrane
Fire resistance ratings for building assemblies per UL/ASTM E119 — IBC Table 601 construction-type requirements (Types IA through VB), CMU wall equivalent-thickness ratings by aggregate type, gypsum board on steel/wood stud assemblies, concrete slab and wall thicknesses, composite steel deck/concrete floors, spray-applied fireproofing (SFRM) for columns and beams by W/D ratio, concrete-encased column ratings, and fire door assembly ratings (20-minute through 3-hour). Sources: IBC 2021 Table 601, ACI 216.1-14, UL Fire Resistance Directory, GA-600-2021, NFPA 80-2022, ASTM E119.
| assembly category | record id | assembly description | assembly type | construction material | fire rating hr (hr) | key materials | notes |
|---|---|---|---|---|---|---|---|
| beam_membrane | beam_membrane_1hr | Steel Beam — Membrane Ceiling Protection — 1 Hour | beam | steel_beam_with_membrane_ceiling | 1 | steel_beam, 5/8-in_type_X_gypsum_ceiling_membrane | Unprotected beams in cavity above 5/8-in Type X gypsum ceiling; per UL P-series or D-series assemblies |
| beam_membrane | beam_membrane_2hr | Steel Beam — Membrane Ceiling Protection — 2 Hour | beam | steel_beam_with_membrane_ceiling | 2 | steel_beam, 2_layer_5/8-in_type_X_gypsum_ceiling | Two-layer 5/8-in Type X gypsum ceiling membrane; per UL D900-series |
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