Horizontal Shaftwall Duct and Ceiling Assemblies 09 21 16 ...

1 137 CAVITY Shaftwall SYSTEMS09 21 21 TRACKGYPSUM BOARD1/2" fire - shield CPOWER DRIVEN FASTENERS24" DRIVEN FASTENERS24 " TYPE S OR S-12 PAN HEAD SCREWS(2 PER STUD)I-STUD 24" TRACKSHAFTLINER1" fire -SHIELDJ TRACKTWO HOUR Horizontal duct PROTECTIONWHI : 2" = 1'-0"FLEXIBLE SEALANTH orizontal Shaftwall duct and Ceiling AssembliesDESCRIPTIONMAXIMUM Horizontal SPANS FOR I-STUD ASSEMBLIESC orridor Ceilings AndHorizontal MembraneStair SoffitsAnd duct ProtectionStud SizeMinimum Steel Thickness1-Hour Fire2-Hour Fire2-Hour Firein. (mm)in. (mm)Resistive RatingResistive RatingResistive Rating2 1/2" ( mm) (.508)7'-8" (2337 mm)7'-8" (2337 mm)7'-2" (2184 mm)2 1/2" ( mm) (.836)8'-8" (2642 mm)9'-4" (2845 mm)8'-8" (2642 mm)4" (102 mm) (.508)10'-3" (3124 mm)10'-9" (3277 mm)10'-0" (3048 mm)4" (102 mm) (.836)11'- 9" (3581 mm)12'-1" (3683 mm)11'-3" (3429 mm)6" (152 mm) (.836)14'- 10" (4521 mm)14'-10" (4521 mm)13'-10" (4216 mm)Note: Spans based on L/240 deflection and twice the dead load weight, and 24" stud DATADETAILSDETAILSI-Stud Cavity ShaftwallSystems can be erectedhorizontally and used aseconomical fire resistiveassemblies for corridorceilings, stair soffits, andprotection for I-Stud Cavity ShaftwallSystem for Horizontal DuctProtection consists of I-Studs 24" with 1" fire - shield Shaftliner panelsinserted in the stud tabs,and three layers of 1/2" fire - shield C GypsumBoard attached to the studflanges opposite theShaftliner panels.

2 ThisSystem provides fireprotection for mechanicalducts and has been testedfrom both layers of 1/2" fire -ShieldC Gypsum Board attachedto the stud flanges oppositethe Shaftliner provide 2-hour fire protection whenused as a corridor Ceiling or stair soffit.*Similarly, single layer 5/8" fire - shield or fire - shield CGypsum Board attached tothe stud flanges oppositethe Shaftliner panelsprovide 1-hour fireprotection when used as acorridor Ceiling or stairsoffit.*LIMITATIONSI-Stud Cavity ShaftwallSystems erectedhorizontally for corridorceilings or stair soffits aredesigned to carry their owndeadweight only, andshould not be used wherethere is access to an attic or loft above, or anyprobability of addition, the 2-hourhorizontal duct protectionsystem is not designed to carry live loads or theweight of the mechanicalducting it is allowablehorizontal spans of eachsystem are shown in thetable " " fire - shield SHAFTLINER1 5/8" TYPE S OR S-12 SCREWS 12" " fire - shield C GYPSUM BOARDTWO HOURCORRIDOR Ceiling AND STAIR SOFFIT*09260 HHScale: 3" = 1'-0"J TRACKI-STUD24" " fire - shield SHAFTLINER1" TYPE S OR S-12 SCREWS 12" " fire -SHIELDGYPSUM BOARDJ TRACKONE HOUR Horizontal Shaftwall -CORRIDOR Ceiling AND STAIR SOFFIT*09260 IIScale: 3" = 1'-0"*See ICBO Evaluation Services, Inc.

3 Evaluation Report No. 3579 for allowable values and/or conditions of use concerning material presented in this document. It s subject to re-examinations, revisions, and possible Shaftwall SYSTEMSSECTION 09 21 Shaftwall SYSTEMSTHE FOLLOWING PARAGRAPHS ARE FOR INSERTION INTO SECTIONS OFGENERIC SPECIFICATIONS OR GENERIC/PROPRIETARY SPECIFICATIONS COVERINGSHAFTWALL PRODUCTS. THENATIONALGYPSUMCOMPANY PRODUCTNAME FOLLOWS THE GENERIC DESCRIPTION IN 1 REFERENCESA. American Society for Testing and Materials (ASTM):1. C 840, Specification for Application and Finishing ofGypsum C 1396, Specification for Gypsum 2 MATERIALSA. Gypsum Board:1. fire -Resistant Gypsum Shaftliner Board: A gypsum coreshaftwall panel with additives to enhance fire resistanceof the core and surfaced with water repellent paper onfront, back, and long edges and complying with ASTM C 1396, Type X (Gold Bond BRANDFire- shield Shaftliner).a. Thickness: 1" b. Width: 2'c. Length: 7' through 14'd.

4 Edges: Beveled2. fire -Resistant Mold-Resistant Gypsum Shaftliner Board:A gypsum core Shaftwall board with additives to enhancefire resistance of the core and surfaced with amoisture/mold/mildew resistant paper on front, back, andlong edges; and complying with ASTM C1396, Type X(Gold Bond BRANDFire- shield Shaftliner XP).a. Thickness: 1" b. Width: 2'c. Length: 7' through 14'd. Edges: Beveled e. Mold and Mildew Resistance: Panel score of 10,when tested in accordance with ASTM D 32733. fire -Resistant Gypsum Board: A gypsum core wall panelwith additives to enhance fire resistance of the core andsurface with paper on front, back, and long edges andcomplying with ASTM C 1396, Type Thickness: 1/2" (Gold Bond BRANDFire- shield CGypsum Board), 5/8" (Gold Bond BRANDFire-ShieldGypsum Board), or 5/8" (Gold Bond BRANDFire-ShieldC Gypsum Board).b. Width: 4'c. Length: 6' through 16'(1/2" fire - shield C Gypsum Board,5/8" fire - shield Gypsum Board)Length: 8' through 14' (5/8" fire - shield C Gypsum Board)d.

5 Edges: Square, Tapered, or Beveled Taper(Sta-Smooth edge)SPECIFICATIONS4. fire -Resistant Mold-Resistant Gypsum Board: A gypsum core wall panel with additives to enhancefire resistance and the water resistance of the core; surfaced with a moisture/mold/mildew resistant paperon front, back and long edges and complying withASTM C 1396, type Thickness: 1/2" (Gold Bond BRANDXP fire - shield CGypsum Board) 5/8" (Gold Bond BRANDXP fire -ShieldGypsum Width: 4'c. Length: 8', 10' or 12'd. Edges: Square or Taperede. Mold and Mildew Resistance: Panel score of 10,when tested in accordance with ASTM D 32735. fire -Resistant Plaster Base: A gypsum core panel withadditives to enhance the fire resistance of the core andsurfaced with absorptive paper on front, back, and long edgesand complying with ASTM C 1396; Type X. a. Thickness: 1/2" (Kal-Kore BRANDFire- shield C Plaster Base); 5/8" (Kal-Kore BRANDFire- shield Plaster Base).b. Width: 4'c. Length: 8' and 12'd. Edges: TaperedB.)

6 Joint Treatment1. Tape: 2 1/16" wide paper reinforcing tape (ProForm BRANDJ oint Tape).2. Compound: Drying type pre-mixed compound (ProFormBRANDM ulti-Use Joint Compound, ProForm BRANDAll-Purpose Joint Compound, regular grade and machinegrade, ProForm BRANDLite Joint Compound, ProFormBRANDU ltra Joint Compound, and ProForm BRANDXP JointCompound).3. Compound: Drying type job mixed vinyl base compound(ProForm BRANDT riple-T Compound).4. Compound: Drying type topping compound, pre-mixed(ProForm BRANDT opping Joint Compound, ProForm BRANDU ltra Joint Compound).5. Compound: Setting type job mixed chemical-hardeningcompound (ProForm BRANDSta-Smooth Joint Compound, ProForm BRANDSta-Smooth Lite Joint Compound).PART 3 INSTALLATIONA. Install studs, tracks, shaftliner, gypsum board, accessories, and finish gypsum board joints in accordance with the following ASTM Standards and manufacturer's recommendations:1. ASTM Standards:a. Metal Framing: C 754b. Joint Treatment: C Manufacturer s Recommendations: National Gypsum Company Gypsum Construction Guide.

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