Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
Understanding the UL Fire Resistance Directories - Ron Blank ...
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NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIESTYPES OF PROTECTIONMembrane ProtectionNumbering System for <strong>Fire</strong> RatedAssemblies – Types of Protection<strong>Understanding</strong> <strong>UL</strong>Direct AppliedProtectionUnprotectedGroups of Construction 000-099 100-199 200-299 300-399 400-499 500-599 600-699 700-899 900-999Floors-Ceilings A,B*,or C*Concrete and CellularSteel FloorD, E*orF*Concrete and Steel FloorUnitsG, H*, or I*Concrete and Steel JoistsConcealedGrid Sys.ConcealedGrid Sys.ConcealedGrid Sys.(Reserved)(Reserved)(Reserved)Exposed GridSystemExposed GridSystemExposed GridSystem(Reserved)(Reserved)(Reserved)Metal LathMetal LathMetal LathGypsumBoardGypsumBoardGypsumBoardMisc. SFRM + UnprotectedMasticCoatingSFRM +UnprotectedMisc. SFRM + UnprotectedJ or KConcreteConcealedGrid Sys.(Reserved)Exposed GridSystem(Reserved)Metal LathGypsumBoardMisc. SFRM + UnprotectedL or M* Wood Joist orCombination Wood andSteel AssembliesBeams:N or O* for Floor-CeilingRoof-Ceiling:P, Q* or R*Beams:S or T* Roof-CeilingWall & Partition:U, V or W*Columns: X, Y or Z*ConcealedExposed GridGypsum(Reserved)(Reserved) Metal LathGrid Sys. System BoardConcealedGrid Sys.ConcealedGrid Sys.BuildingUnits(Reserved)(Reserved)(Reserved)Bldg. orPartition (Reserved)Panel UnitsBuildingUnitsPrefabricatedExposed GridSystemExposed GridSystemExposed GridSystemInsulatingConcrete(Reserved)Batts &<strong>Blank</strong>ets orMineral andFiber Boards(Reserved)(Reserved)Metal LathMetal LathMetal LathGypsumBoardGypsumBoardGypsumBoardMisc. SFRM + UnprotectedMasticCoating SFRM + UnprotectedMisc.MasticCoatingWood StudMetal StudMetal PanelsGypsum Bd. Gypsum Bd.Gypsum Bd.Misc.Lath and/or Lath and/orLath and/orPlaster PlasterPlasterBatts &<strong>Blank</strong>ets or Metal Lath & Gypsum MasticMineral & Plaster Board CoatingFiber BoardsSFRM +SFRM +SFRM +SFRM +UnprotectedUnprotectedMasonryReserved)The prefix numbers with an asterisk (*) and <strong>the</strong> design numbers indicated as "Reserved" in <strong>the</strong>above table are for future expansion and to cater to new types of systems