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STUCCO/Plaster Grid Systems CEILING&WALL SYSTEMS Between us, ideas become reality™ T ECH NICAL G UIDE STUCCO/PLASTER Grid Systems Hanging and Framing Stucco/Plaster Ceilings DRYWALL Grid Systems Table of Contents Features and Benefits Performance .............................................................................................................. 3 Code Compliance ...................................................................................................... 3 Components Main Beams .............................................................................................................. 4 Cross Tees ................................................................................................................ 4 Moldings Wall Moldings ............................................................................................................ 5 Drywall Transitions Moldings .................................................................................... 5 Wire Load Wire Load .................................................................................................................. 6 Stucco/Plaster Installation contents Stucco/Plaster Grid Suspension Installation ............................................................... 7 Stucco/Plaster Details Suspended Metal Lath and Stucco ............................................................................. 8 Exterior Wind Loaded ................................................................................................ 8 Lighting Troffer .......................................................................................................... 8 Stucco Perimeter Stop ............................................................................................... 8 Non-modular Cut and Screw ..................................................................................... 8 Rock Lath and Plaster ................................................................................................9 Security Metal Lath and Plaster.................................................................................. 9 Wind Load Wind Load Ceiling Design ........................................................................................ 10 Exterior Wind Load Bracing to Concrete Slab ........................................................... 11 Exterior Wind Load Bracing to Meet Metal Bar Joist .......................................... 12-15 Wind Load and Impact ............................................................................................. 16 Making a Template Establishing the Arc ................................................................................................. 17 Completing the Template – Option 1 ........................................................................ 17 Completing the Template – Option 2 ........................................................................ 18 Radius Chart ......................................................................................................... 19 2 For more information call 1 877 DRYWALL Grid Systems Features and Benefits Performance Code Compliance • PeakForm ® patented profile increases strength and • Meets ASTM C645 stability for improved performance during installation • Meets ASTM C840 ™ • SuperLock 2 main beam clip is engineered for a strong • Meets ASTM C841 secure connection and fast accurate alignment confirmed with an audible click; easy to remove and relocate • Meets ASTM C842 • ScrewStop® reverse hem prevents screw spin-off on • Meets ASTM C926 1-1/2" wide face • Meets ASTM C1063 • Rotary-stitched – Greater torsional strength • Meets ASTM C754 and stability • ICC Evaluation Report Number ESR-1289 • 1-1/2" wide face main beams and cross tees – • City of LA – RR 25348 Easy installation of screw applied gypsum wallboard • Miami/Dade wind uplift – NOA #12-0314.05 – 03/17/15 • G90 hot dipped galvanized coating – Superior corrosion resistance for exterior applications • Miami/Dade Impact – NOA #12-0314.04 – 10/07/14 • Heavy-duty load rating – Minimum 16 Lbs./LF on • Consult local codes for specific requirements main beams and cross tees • Wind Load construction available, including Miami Dade/Broward County, Florida • Pre-engineered stucco products space tees to match lath dimensions Corrosion Prevention Corrosion prevention is an essential factor in the economical utilization of galvanized sheet metal for ceiling grid. Armstrong provides G40 for standard construction per ASTM C645. When conditions include exposure to extreme moisture and salt water, G90 is available per ASTM A653. features and benefits For more information call 3 DRYWALL Grid Systems Components Main Beams Load Test Data (Lbs./LF) Face Profile Duty Fire L/360 L/240 Item Number Length Dimension Height Load Rated Routs wires at wires at Perspective 2' 3' 4' 2' 3' 4' 51 routs – HD8906 Heavy starting HD8906G90 144" 1-1/2" 1-11/16" Yes 95.5 43.19 18.66 139.85 64.78 27.99 Duty 2-1/4" from 1/4" HD8906HRC † each end 9/16" 1-11/16" 13-1/2" o.c. Heavy starting SP135 135" 1-1/2" 1-11/16" No 89.04 43.19 18.66 Duty 6-3/4" from 1-1/2" each end † Type “F” fixture compatible Cross Tees components Load Test Data (Lbs./LF) Face Profile Fire L/360 L/240 Item Number Length Dimension Height Rated Routs wires at wires at Perspective 2' 3' 4' 2' 3' 4' XL7936G90 36" 1-1/2" 1-1/2" No none 31.3 46.95 1/4" 7/16" 3 routs – center 1-1/2" XL8926 24" 1-1/2" 1-1/2" Yes rout and 10" from 90.25 135 XL8926G90 each end† 1-1/2" Note: All items available in High Recycled Content (HRC) as special order. † Type “F” fixture compatible 4 For more information call DRYWALL Grid Systems 5/8" Gypsum Board ExposedMoldings Tee Grid Hanger Wires to Structure Exposed Tee Grid Drywall Grid KAM-12 1-1/4" Drywall Screw “F” Molding (Tape, sand, mud and paint) Attach Grid Via Acoustical Lay-in Acoustical Lay-in 5/8" Gypsum Board Wall Molding XTAC or Pop Rivet 9/16" Tegular Transition Molding Item Number Length Description 1-1/4" DrywallProfile Screw Perspective (Tape, sand, mud and paint) Reverse Angle Molding nominal 7858 144" 1-9/16" x 15/16" 1-9/16" Unhemmed Channel Molding nominal 7838 120" 90° 3/4" x 1-9/16" x 1-1/4" 15/16" 3/4" Knurled Angle Molding nominal KAM10 120" 7906 1-1/4" x 1-1/4" 1-9/16" 7907 7858PRO KAM12 11/2/98 Knurled Angle Molding nominal 12/14/98 1-1/4" KAM12G90 144" 1-1/4" x 1-1/4" 1/28/99 KAM12HRC 1-1/4" 5/8" KAM1510 120" Knurled Angle Molding nominal KAM1512 144" 1-1/2" x 1-1/2" 1-1/4"15/16" 1-7/16" KAM151020 (KAM1510 & KAM1512 - 25g.; KAM151020 - 20g.; 1-1/4" 1/4" KAM151020EQ KAM151020EQ - 22g) 5/16" 1-1/2" moldings or 2" 1-3/8" 1/2" KAM21020 Knurled Angle Molding nominal 2" x 2" (20 gage) 9/16" 120" KAM21025 (KAM21020 - 20g.; KAM21025 - 25g.; KAM21020EQ 22g) 1-1/4" 144" 1-1/2" KAM21020EQ or 2" LAM12 Locking Angle Molding nominal LAM12G90 144" 1-1/4" x 1-1/4" LAM12HRC NOTE: All items available in High Recycled Content (HRC) as special order. Hanger Wires to Structure Hanger Wires to Structure Exposed Tee Grid Drywall Grid Exposed Tee Grid Drywall Grid KAM-12 Acoustical to Drywall Transition Molding KAM-12 Transition moldings make it easier to detail and build a wide variety of acoustical to drywall transitions. Item Number Description Profile Acoustical Lay-in 5/8" Gypsum Board 7901 9/16" Shadow Reveal Transition Molding Acoustical Lay-in 5/8" Gypsum Board 1-1/4" Drywall Screw 9/16" Flush Transition Molding 1-1/4" Drywall1-1 /4"Screw 15/16" Flush Transition Molding (Tape, sand, mud and paint) (Tape, sand, mud and paint) 9/16" 1-3/8" 15/16" 7902 15/16" Shadow Reveal Transition Molding 1-1/4" 15/16" 1-3/8" 1- 5/16" 7905 7904 7903 1" Flush T Transition Molding 1-1/2" 9/16" 3/8" 1" 7904 15/16" Flush Transition Molding 1-1/4" 1-1/4" 1-3/8" 1-3/8" 9/16" 15/16" For more information call 5 5/8" Gypsum Board Exposed Tee Grid Hanger Wires to Structure Exposed Tee Grid Drywall Grid KAM-12 1-1/4" Drywall Screw “F” Molding (Tape, sand, mud and paint) Attach Grid Via Acoustical Lay-in Acoustical Lay-in 5/8" Gypsum Board XTAC or Pop Rivet 1-1/4" Drywall Screw 9/16" Tegular Transition Molding (Tape, sand, mud and paint) 7906 7907 5/8" 15/16" 1-7/16" 5/16" 1/4" 1-3/8" 1/2" 9/16" Hanger Wires to Structure Hanger Wires to Structure Exposed Tee Grid Drywall Grid Exposed Tee Grid Drywall Grid KAM-12 KAM-12 Acoustical Lay-in 5/8" Gypsum Board Acoustical Lay-in 5/8" Gypsum Board 5/8" Gypsum Board1-1/4" Drywall ScrewExposed Tee9/16" Grid Flush Transition Molding 1-1/4" DrywallHanger Screw Wires to 15/16"Structure Flush Transition Molding (Tape, sand, mud and paint) Exposed Tee Grid (Tape, sand, mud and paint) DRYWALL Grid Systems Drywall Grid KAM-12 Moldings continued and Wire Load 1-1/4" Drywall Screw Exposed Tee Grid Hanger Wires to Structure 5/8" Gypsum Board “F” Molding Exposed Tee Grid (Tape, sand, mud and paint) Drywall Grid Acoustical Lay-in Acoustical Lay-in 5/8" Gypsum Board Attach GridKAM-12 Via 7905 7904 1-1/4" Drywall Screw XTAC or Pop Rivet 1-1/4" Drywall Screw 9/16" Tegular Transition Molding “F” Molding (Tape, sand, mud and paint) (Tape, sand, mud and paint) Acoustical to Drywall Transition Molding, continued Acoustical Lay-in Attach Grid Via Item Number Description AcousticalProfile Lay-in 5/8" Gypsum Board XTAC or Pop Rivet 7905 9/16" Flush Transition Molding 1-1/4" Drywall Screw 9/16" Tegular Transition Molding (Tape, sand, mud and paint) 1-1/4" 7906 1-1/4" 7907 1-3/8" 1-3/8" 9/16" 15/16" 7906 “F” Vertical Transition Molding 5/8" 7906 7907 15/16" 1-7/16" 5/16" 1/4" 1-3/8" 1/2" 9/16" 5/8" 7907 9/16" Tegular Transition Molding 15/16" 1-7/16" 5/16"
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