Understanding the UL Fire Resistance Directories - Ron Blank ...

An American Institute of Architects (AIA)Continuing Education ProgramUnderstanding ULCourse Format: This is a structured, web-based, self study course with afinal exam.Course Credit: 1 Health Safety & Welfare (HSW) Learning Unit (LU)Completion Certificate: A confirmation is sent to you by email and you can printone upon successful completion of a course or from your RonBlank.comtranscript. If you have any difficulties printing or receiving your Certificate pleasesend requests to carol@ronblank.comDesign professionals, please remember to print or save your certificate ofcompletion after successfully completing a course conclusion quiz. Emailconfirmations will be sent to the email address you have provided in yourRonBlank.com account.

Understanding ULCopyright MaterialsThis presentation is protected by US and International copyrightlaws. Reproduction, distribution, display and use of thepresentation without written permission of© Ron Blank & Associates, Inc. 2007and© National Gypsum Company 2007is prohibited.

Understanding ULLearning ObjectivesUpon completion of this course the Design Professional will beable to:• Find UL designs on-line• Explain the difference between the three UL Volumes• Understand Fire Rated Assemblies• Explain how to use Volume 1• Explain how the first 10 pages of Volume 1 can help• List the fire resistant properties of gypsum• Define what gypsum calcination is• Analyze 3 UL designs• Discuss FAQ’s

Understanding ULWho is Underwriters Laboratories?• An independent, not-for-profit company• Perform product-safety t testingtiand certification• Over 100 years old (founded d in1894)• 17 billion UL marks appear on products• 64,482 manufacturers produce ULcertified products• UL customers are found in 99 countries

Understanding ULUL Fire Resistance DirectoriesiAll volumes available on the UL website:• www.UL.com*• Download• Can be copied onto plans• “reprinted with permission...”. Page vii,paragraph 8UL wants architects and designers to cut, copy, andpaste directly from their web pages into their plans tobe sure that the project is specified correctly. Let’s lookat the UL web site…

UL WebsiteUnderstanding UL

Understanding ULUL Fire Resistance Directoriesi3 Volumes: Vol. 1Vol. 2AVol. 2BVol. 320062006 2006 2006

Understanding ULVolume 3:2006• Dampers• Fire Doors• Glazing Materials• Related Equipment

Understanding ULVolume 2A:• Joint Systems2006 • Through-PenetrationFirestop Systems• Electrical CircuitProtective Systems• Duct Assemblies

Understanding ULVolume 2B:• Joint Systems2006 • Through-PenetrationFirestop Systems• Electrical l CircuititProtective Systems• Duct Assemblies

Understanding ULVolume 1:• Beams• Floors• Roofs2006• Columns• Walls• Partitions

Understanding ULFire Rated Assemblies• Based on hourly ratings• Test standards:ASTM E119NFPA 251ASTM id th t d d tASTM provides the standards towhich UL tests assemblies.

Understanding ULResearch & Testing FacilityASTM E 1192 things determine a successful fire test:Temperature (did not rise above the limit) it)Hose stream (no through penetration orwallboard failure to the other side)This may look like a failure but is actually apass. The temperature did not rise abovethe limit and the wall passed the hose test.As you can see, the wall did not fail withthe hose stream test . There is not throughpenetration or wallboard failure to the otherside.Buffalo, New York

Understanding ULASTM E119 Standard d Time/Temperature CurveThis is the time temperature curve. This shows that at 5 minutes,the furnace reaches 1000 degrees and at 1 hour the furnacereaches 1700 degrees during the standard test.180016001700º F1 HR.At 5 minutes, furnacereaches 1000’F.At 1 hour, furnacereaches 1700’F.14001200100080060040020001000º F5 Min0 1 2 3

Understanding ULTest Requirements, ASTM E119• Average of all thermocouples must not exceed250°F over ambient temperature• No single thermocouple can exceed 325°F overambient temperature• Structure can’t show evidence of burn through• Structure must not collapse

Understanding ULFinish i Rating vs. Fire Rating• Fire Ratings pertain to a total ASSEMBLY.• Finish Rating is the time required to obtain anaverage temperature rise of 250 degrees (or asingle point rise of 325 degrees) between thematerial being tested (gypsum board) and thesubstrate being protected (i.e. plywood).

Understanding ULVolume 1• First 10 pages (mostimportant)• Table on page 12006• We will now start to takeWe will now start to takea closer look at how tonavigate and use thisbook

Understanding ULImportant t Key Passages• Pg 2 - Nails vs. screws• Pg 3 - Gypsum board orientation• Pg 3 - Gypsum board joint treatment (fire taping)• Pg 4 - Metal thickness (steel joists)• Pg 5 - Gypsum board• Pg 8 - Blanket insulation• Pg 10 - Wall and Partition Assemblies

Understanding ULPage 2 – Nails vs. Screws5. Nails and ScrewsNails are specified according to ASTM F547 or ASTMC514. Nails used to attach gypsum board to woodframing shall be cement coated box nails or cementcoated cooler nails unless specified otherwise in thespecific designs. Screws meeting ASTM C1002 orASTM C954 may be substituted for nails, one forone, when the head diameter, length, and spacingequal or exceed the requirements for the specifiednails.

Page 3 – Gypsum Board OrientationtiUnderstanding UL10. Gypsum Board OrientationVertically applied gypsum board is gypsum board thatis applied with the long edges parallel to the framingmembers to which it is attached. Horizontally appliedgypsum board applied is gypsum board applied withthe long edges perpendicular to the framingmembers to which it is attached.

Understanding ULPg 3 – Gypsum Board Joint Treatment t (fire taping)11. Gypsum Board Joint Treatment (Fire Taping)Unless otherwise specified in the specific design allgypsum board systems except those with predecoratedor metal covered surfaces have joints tapedand joints and fastener heads covered with onecoat of joint compound (fire taped). Base layers inmulti layer systems are not required to have joints orfastener heads taped or covered with joint compound.

Understanding ULPage 4 – Metal Thickness (steel Joists)7. Steel JoistsThe specified minimum size joist in floor- or roof-ceiling designs is thejoist that meets the requirements for both the minimum depth and theminimum weight per foot. Joists that exceed the specified minimumsize may be used, provided the accessories are compatible. Thedimension from the bottom chord of joists to the ceiling, whether given orcalculated, is a minimum.Spacing between joists may be increased from that specified to amaximum of 4 ft on centers if the floor slab meets structural t requirementsand the spacing of the hanger wires supporting the ceiling is notincreased. Where it is necessary to provide support for the ceiling hangerwires between the joists, this may be accomplished by using 1-1/21/2 in., No.16 gauge or larger cold-rolled steel channels. Each channel with its weboriented vertically should be placed on top of and perpendicular to thejoist's bottom chord and tied thereto with a double strand of No. 18 SWGgalvanized steel wire.

Understanding ULPage 5 – Gypsum Board9. Gypsum BoardGypsum board thicknesses specified in specific designs areminimums. Greater thicknesses of gypsum board are permitted aslong as the fastener length is increased to provide penetrationinto framing that is equal to or greater than that achieved with thespecified gypsum board thickness and fasteners.Additional layers of gypsum board are permitted to be added to anydesign.For designs containing the statement "See Gypsum Board (CKNX)Category for names of Classified Companies," any product in thecategory (CKNX) that meets the specifications (i.e., thickness,size) described in the design may be used. This statement isapplicable to any gypsum board manufacturer who producesClassified gypsum board meeting the thickness and size of the boardspecified in the design. It is not required that these Design Numbersappear in the individual Classifications.

Understanding ULPage 8 – Blanket Insulation18. Blanket InsulationUnless specifically described in a design, the additionof insulation in the concealed space between theceiling membrane and the floor or roof structuremay reduce the hourly rating of an assembly bycausing premature disruption of the ceilingmembrane and/or higher temperatures on structuralcomponents under fire exposure conditions.

Page 10 – Wall and Partition AssembliesUnderstanding UL• The ratings for walls and partitions apply when either face of theassembly is exposed to the fire unless indicated otherwise on aspecific Design.• The hourly rating of a load bearing assembly also applies to the sameassembly when it is used as a non-load bearing assembly.• The size of studs are minimum unless otherwise stated in a Design.• The spacing of studs is a maximum unless otherwise stated in aDesign.• Spacing between een parallel rows of studs are minimums ms unlessotherwise stated in the individual designs.• Gypsum board thicknesses specified in specific designs areminimums. i Greater thicknesses of gypsum board are permitted aslong as the fastener length is increased to provide penetrationinto framing that is equal to or greater than that achieved with thespecified gypsum board thickness and fasteners.

Page 10 – Wall and Partition AssembliesUnderstanding UL• Additional layers of gypsum board are permitted to be added to any design.• Orientation, vertical or horizontal, of the application of gypsum board inwalls and partitions is specified in the individual design.• Except when gypsum board is allowed to be applied horizontally in the individualwall designs, horizontal butt joints of vertically applied gypsum board should bebacked by the same type studs as specified in the design. Alternatively,minimum i 25 gauge steel framing with a minimum i attachment t face of 1 1/4"may be used for the backing. Both edges of the gypsum board forming thehorizontal joint shall be attached to the backing with the same screws andspacing as specified in the design for the attachment of the gypsum board edges,then finished as specified for the vertical joints.• Horizontal butt joints on opposite sides of the studs in single-layerapplications should be staggered a minimum of 12 inches unless otherwisestated in the individual designs. Horizontal butt joints in adjacent layers on thesame face of the assembly in multiple-layer applications should be staggered aminimum of 12 inches unless otherwise stated in the individual designs.

Page 10 – Wall and Partition AssembliesUnderstanding UL1. Wood Stud Walls• The fire stopping requirements for wood stud assemblies is to bedetermined from the Authorities Having Jurisdiction. Horizontalbridging is included in most fire test samples in order to fully loadthe wood studs. This horizontal bridging should not beconsidered d as a means of fire stopping.• The hourly fire ratings for load bearing wood stud walls werederived with a superimposed p load applied to the wall assemblyintended to theoretically develop maximum working stresses notexceeding the design values published in the Supplement to the1991 Edition of the National Design Specification for woodconstruction. In addition, the design load per square inch ofcross sectional area for any wood stud shall not exceed 385 psi.• Wood stud walls may contain fire retardant t treated t studs as wellas untreated wood studs.

Page 10 – Wall and Partition AssembliesUnderstanding UL2. Steel Studs• The dimensions and gauge of steel studs are minimums.The hourly ratings apply when the steel studs are of a heaviergauge and/or larger dimensions than specified in a Design. Thesuperimposed load of bearings walls utilizing steel studs shall bebased on the capacity of the studs as determined d by the 1986edition of the AISI Specification for the Design of Cold FormedSteel Structural Members with the December 11, 1989Addendum.

Numbering System for Fire-RatedAssembliesUnderstanding UL

Understanding ULNumbering System for Fire Rated AssembliesType of Protection: Membrane ProtectionNext, you look at the protection you will000-099put over the structural element or groupof construction. The first option is 100-199Membrane Protection. This is protection200-299that is put on top of or mechanicallyfastened to the structural element much300-399399like drywall is fastened to steel studs.Examples are concealed grid or exposed400-499grid systems, gypsum, metal lath and or500-599599plaster. These numbers fall between 000and 599.

Understanding ULNumbering System for Fire Rated AssembliesType of Protection: Direct Applied Protection600-699700-899Your next option is Direct Applied Protection. Direct Applied isnot fastened to but sprayed on such as mastic coating orSFRM. These design numbers fall between 600-899.

Understanding ULNumbering System for Fire Rated AssembliesType of Protection: Unprotected900-999Finally, there is Unprotected. Unprotected is not fastened likey, p pmembrane protection or sprayed on like Direct Applied but isprotected using masonry or brick block. These designs will fallbetween 900-999.

Fire Resistive Properties of GypsumUnderstanding UL• Gypsum is approximately 21% by weight chemicallycombined water.• This greatly contributes to its effectiveness as a fireresistive barrier.• Calcination is a process in which a material is heatedto a temperature below its melting point to effect athermal decomposition or a phase transition otherthan melting.

Fire Resistive Properties of GypsumUnderstanding UL• Gypsum-protected wood or steel structural members areexposed to fire.• Water in board is released as steam and acts as athermal barrier until calcination is completed.• Temperature directly behind the plane of calcination isonly slightly hotter than that of boiling water which issignificantly lower than the temperature at which steelbegins losing strength or wood ignites.

Understanding ULTypes of Drywall/Gypsum Board• “Regular”• Type “X”• Type “C”

Understanding ULRegular Gypsum Board• All gypsum board affords a degree of natural fireresistance. The fire resistant noncombustible core iscomposed mainly of gypsum.

Understanding ULType “X” Core• “eXtra” fire resistance• The basic components added that give Type “X” it’ssuperior fire resistant core are gypsum andfiberglass.

Understanding ULType “C” Core• Has superior fire resistance over Type “X”.• Type “C” core is proprietary, so the enhancingingredients vary by manufacturer.

How do I know what type ofgypsum board is being installed?

Understanding ULUL Label Sample: Type XUNDERWRITERS LABORATORIES INC. ®CLASSIFIEDR 3501 WALLBOARD GYPSUMISSUE NO. C-32585/8” (24 OR 46 TO 54 IN. WIDE)TYPEFSWThis is what a ULlabel looks likewhen printed onthe back ofwallboard. TheFSW designatesthis is type Xwallboard.FIRE RESISTANCE CLASSIFICATIONSEE UL FIRE RESISTANCE DIRECTORYFSW:Fire-ShieldHi-Abuse XP Fire-ShieldFire-Shield Exterior Soffit BoardFire-Shield ShaftlinerFire-Shield Shaftliner XP

Understanding ULUL Label Sample: Type CUNDERWRITERS LABORATORIES INC. ®CLASSIFIEDR 3501 WALLBOARD GYPSUMTYPEFSW-CISSUE NO. C-32585/8” (24 OR 46 TO 54 IN. WIDE)FIRE RESISTANCE CLASSIFICATIONSEE UL FIRE RESISTANCE DIRECTORYThis is a UL label for type C. The FSW-C designates type C.FSW-C:Fire-Shield C

Understanding ULUL Directory – Guide InfoTo determine whichproducts areincluded in theassemblies in the ULDirectory, check out“CKNX.Guide-InfoGypsum Board”.Click on “ViewListings” to see thecompanies included.

Understanding ULUL Directory - ManufacturersYou’ll findlistings for 23manufacturersof gypsumwallboard.

Understanding ULUL Directory - ProductsHere, you’llfind a list of allboard productsorganized by:• Thickness• Board width• Core typeEveryassemblyusing thatproduct ishyperlinked.

Let’s find an assembly for metalstuds and gypsum board, 1HR.

NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIESTYPES OF PROTECTIONMembrane ProtectionNumbering System for Fire RatedAssemblies – Types of ProtectionUnderstanding ULDirect 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 &Blankets 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 &Blankets or Metal Lath & Gypsum MasticMineral & Plaster Board CoatingFiber BoardsSFRM +SFRM +SFRM +SFRM +UnprotectedUnprotectedMasonryReserved)The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in theabove table are for future expansion and to cater to new types of systems

Understanding ULASSEMBLY U465• Wall & Partition:U, V or W*• 400 – 499• Metal Stud, Gypsum Board, Lath&/or Plaster• Assembly U465

Understanding ULDesign No. U465Nonbearing Wall Rating – 1HRHR.1. Floor and Ceiling Runners (Not shown)2. Steel Studs3. Batts and Blankets*4. Gypsum Board5. Joint Tape and Compound6. Resilient Channel

Understanding ULDesign No. U465 continued1. Floor and Ceiling RunnersChannel shaped runners, 3 5/8 in wide, 1 ¼ in legs, formed frommin No 25 MSG galv steel, attached to floor and ceiling withfasteners spaced d24i in OC max2. Steel StudsChannel shaped, 3 5/8 in wide (min), 1 ¼ in legs, 3/8 in folded backreturns, formed from min No 25 MSG galv steel spaced 24 in OCmax.3 B tt dBl k t3. Batts and BlanketsMineral wool or glass fiber batts partially or completely filling studcavity.

Understanding ULDesign No. U465 Continued4. Gypsum Board* - 5/8 in. thick, 4 ft wide, attached to steelstuds and floor and ceiling track with 1 in. long, Type S steelscrews spaced 8 in. OC. along edges of board and 12 in. OCin the field of the board. Joints oriented vertically andstaggered on opposite sides of the assembly. When attachedto item 6 (resilient channels) or 6A (furring channels),wallboard is screw attached to furring channels with 1 in.long, Type S steel screws spaced 12 in. OC. When used inwidths other than 48 in., gypsum panels to be installedhorizontally.

Understanding ULDesign No. U465 Continued5. Joint Tape and Compound — Vinyl, dry or premixed joint compound,applied in two coats to joints and screw heads; paper p tape, 2 in. wide,embedded in first layer of compound over all joints. As an alternate, nominal3/32 in. thick gypsum veneer plaster may be applied to the entire surface ofClassified veneer baseboard. Joints reinforced. Paper tape and jointcompound may be omitted when gypsum boards are supplied with squareedges.6. Resilient Channel — (Optional-Not Shown) — 25 MSG galv steel resilientchannels spaced vertically max 24 in. OC, flange portion attached to eachintersecting stud with 1/2 in. long type S-12 panhead steel screws.6A Steel Framing Members (Not Shown)* As an alternate to Item 3 furring6A. Steel Framing Members (Not Shown)* — As an alternate to Item 3, furringchannels and resilient sound isolation clip as described below:a. Furring Channels

Understanding ULSpecialty gypsum core types that can be used inU465 in lieu of standard 5/8” Type “X”Gypsum Company’s Core TypeFSKType “X” Plaster Board (Blue Board)FSK-CType “C” Plaster Board (Blue Board)FSK - GType “G” Plaster Board (Blue Board) – Not tAvailableFSW-CType “C”FSWFSW-3FSW-5Type “X”, Abuse Resistant Type “X”, Type “X” Exterior SoffitBoard, 1” Type “X” Shaftliner, 1” Type “X” Shaftliner mold resType “X” Mold Resistant, Type “X” Moisture Resistant, Type “X”Jumbo SheathingType “X” Impact Resistant Gypsum Board

Let’s find an assembly for metalstuds and gypsum board, 2HR.

NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIESTYPES OF PROTECTIONMembrane ProtectionUnderstanding ULDirect 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 BoardBatts &ConcealedExposed GridNumbering (Reserved)Grid Sys. System Blankets orGypsumSystem for MetalMineral and Fire LathBoard RatedFiber BoardsAssembliesConcealedExposed GridGrid Sys.BuildingUnits(Reserved)(Reserved)SystemExposed GridSystem(Reserved)(Reserved)Metal LathMetal LathGypsumBoardGypsumBoardMisc. SFRM + UnprotectedMasticCoating SFRM + UnprotectedMisc.MasticCoatingBldg. or Wood StudMetal StudMetal PanelsPartitionInsulating Gypsum Bd. Gypsum Bd.Gypsum Bd.(Reserved)Misc.PanelConcrete Lath and/or Lath and/orLath and/orUnitsPlaster PlasterPlasterBatts &BuildingUnitsPrefabricated(Reserved)Blankets or Metal Lath & Gypsum MasticMineral & Plaster Board CoatingFiber BoardsSFRM +SFRM +SFRM +SFRM +UnprotectedUnprotectedMasonryReserved)The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in theabove table are for future expansion and to cater to new types of systems

Understanding ULASSEMBLY U411• Wall & Partition:U, V or W*• 400 – 499• Metal Stud, Gypsum Board, Lath&/or Plaster• Assembly U411

Understanding ULUL Design U411 – Nonbearing Wall Rating (2 HR.)2. 3. 4.1. Floor and Ceiling Runner (Not Shown)2. Steel Studs3. Batts and Blankets*4. Gypsum Board*

Understanding ULUL Design U4111. Floor & Ceiling Runners –Min 25 MSG galv steel 1 inch high, return legs 2- ½inin.wide (min), attached to floor and ceiling with fasteners.2. Steel Studs – Min 2-1/2 in. wide, 1-1/4 in. legs, 3/8 in.return, formed of min 25 MSG galv max stud spacing 24in. OC. Studs to be cut ¾ in. less than assembly height.

Understanding ULUL Design U4113. Batts & Blankets-Mineral wool or glass fiber batts partially or completelyfilling stud cavity. Fasten each batt to wallboard base layerwith a min 9/16 in. long staple. Use five staples for each 4ft. piece. Drive one staple in the center of each piece anda staple at Each corner, approx. 3 in. from edge.* See Batts & Blankets category for names of manufacturers.

Understanding ULUL Design U4114. Gypsum Board – 5/8 in. thick, outer layer paper or vinylsurfaced. (Laminated System) Wallboard appliedvertically in two layers. Inner layer attached to studs with1 in long Type S steel screws spaced 8 in OC alongvertical edges, and 12 in. OC in the field and outer layerlaminated to inner layer with joint compound, appliedwith notched spreader producing continuous beads ofcompound about 3/8 in in diameter, spaced not greaterthan 2 in OC.

Types of Gypsum Board used in U411Understanding ULGypsum Company’s Core TypeFSK - CType “C” Plaster Board (Blue Board)FSK - G Type “G” Plaster Board (Blue Board) – Not AvailableFSW-C Type “C”FSMR-C Type “C” Mold Resistant, Type “C” Moisture ResistantFSWFSW-3FSW-5Type “X”, Abuse Resistant Type “X”, Type “X” Exterior SoffitBoard, 1” Type “X” Shaftliner, 1” Type “X” Shaftliner moldresistantType “X” Mold Resistant, Type “X” Moisture Resistant, Type “X”Jumbo SheathingType “X” Impact Resistant Gypsum Board

Let’s find an assembly for a Roof-Ceiling system with gypsum wallboard.

NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIESTYPES OF PROTECTIONMembrane ProtectionNumbering System for Fire RatedAssembliesUnderstanding ULDirect 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 &Blankets 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 &Blankets or Metal Lath & Gypsum MasticMineral & Plaster Board CoatingFiber BoardsSFRM +SFRM +SFRM +SFRM +UnprotectedUnprotectedMasonryReserved)The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in theabove table are for future expansion and to cater to new types of systems

Understanding ULUL Design P533• Roof-Ceiling:P, ,Q* or R*• 500-599599• Gypsum Board• Assembly P533

Understanding ULUL Design P533Design No. P533Unrestrained Assembly Rating- 1 HR.Finish Rating - 23 Min.

Understanding ULUL Design P5331. Roofing System2. Trusses3. Batts and Blankets*3A. Loose Fill Material*4. Air Duct*5. Ceiling Damper*6. Furring Channels7. Gypsum Board* - Nom 5/8 in. thick, 48in. wide, installed with long dimensionperpendicular to resilient channels with 1-1/8 in.long Type S screws spaced 12 in. OC and locateda min of 1/2 in. from side joints and 3 in. from theend joints. At end joints, two resilient channels areused, extending a min of 6 in. beyond both ends ofthe joint. When insulation, Item 3 or 3A, is drapedover the resilient channel/gypsum wallboard ceilingmembrane, screws shall be installed at 8 in. OC.8. Finishing System

Understanding ULAdditional types of gypsum board used in P533Gypsum Core TypesFSW-CType “C”FSW-GFSK-CFSK-GType “G” – Not AvailableType “C” Plaster Board (Blue Board)Type “G” Plaster Board (Blue Board) – Not Available

Frequently Asked Questions

Understanding ULWhat does it mean to say that a particular wall orceiling system has achieved a 1-hour fire rating?Q.What does it mean to say that a particular wallor ceiling system has achieved a 1-hour firerating?A.It passes ASTM E119 for at least 60 minutes.

Understanding ULWhen constructing a fire-rated wallboard partition, must the exactstud size specified in the tested t design be utilized?Q.When constructing a fire-rated wallboardpartition, must the exact stud size specified inthe tested design be utilized?A.Specified wood or steel stud sizes areminimums unless otherwise stated in thedesign.

Understanding ULMy fire rated design was tested with nails. Can Ifasten the wallboard with screws rather than nails?Q.My fire rated design was tested with nails. Can Ifasten the wallboard with screws rather than nails?A.Yes, screws can be used as an alternate to nails inwallboard designs.They must be substituted one-for-one when thehead diameter, length and spacing equal orexceed the requirements for the specified nails.

Understanding ULCan I add glass fiber insulation to a fire rated partition design when it is notspecified as a component?Q.Can I add glass fiber insulation to a fire rated partitiondesign when it is not specified as a component?A.Yes, ,glass fiber insulation of a thickness not exceeding thedepth of the stud is OK to add to the wall stud cavity.Yes for 1 hour rated G500 L500 and P500 series floorYes, for 1-hour rated G500, L500 and P500 series floorceilingassemblies, fiberglass insulation may be added tothe plenum or joist space above the gypsum wallboardprovided an additional layer of gypsum wallboard is addedto the assembly.

Understanding ULWhat is the difference between “Regular” and Type“X” gypsum wallboard?Q.What is the difference between “Regular” and Type “X”gypsum wallboard?A.“eXtra” ”fire resistanttType “X” wallboard, which is typically required toachieve fire resistance ratings, is formulated by addingnoncombustible fibers to the gypsum.These fibers help maintain the integrity of the core asshrinkage occurs, providing greater resistance to heattransfer during fire exposure.

Understanding ULWhat is the fire rating for 5/8” Type “X” Wallboard?Q.What is the fire rating for 5/8” Type “X” Wallboard?A.5/8" Type “X” Wallboard has no fire rating.Fire ratings are assigned to a complete assembly thatmay include 5/8" Type “X” wallboard as a component.

Understanding ULThings to Remember• First 10 pages• Numbering on table• Assemblies• U 465• U 411• P 533

Understanding ULLearning ObjectivesThe Design Professional will now be able to:• Find UL designs on-line• Explain the difference between the three UL Volumes• Understand Fire Rated Assemblies• Explain how to use Volume 1• Explain how the first 10 pages of Volume 1 can help• List the fire resistant properties of gypsum• Define what gypsum calcination is• Analyze 3 UL designs• Discuss FAQ’s

Understanding the ULFire Resistance DirectoriesUnderstanding the UL Fire Resistance DirectoriesMundise MortimerNational Gypsum Company2001 Rexford RoadCharlotte, NC 28211704-365-7494MMortimer@nationalgypsum.comPlease note: you will need to complete the conclusionquiz online at ronblank.com to receive creditwww.nationalgypsum.comAn AIA Continuing Education ProgramCredit for this course is 1 AIA/CES HSW Learning UnitCourse Number: NGC09D