The subloor should be APA Span-Rated Plywood or OSB with an Exposure 1 classiication or better with tongue and groove or back blocked at the unsupported edges. A FramingSpace wood and steel framing a maximum of 16\" o.c. In cold weather and during inish applications, DUROCK cement panel, skim or basecoat, mortar, inish material and air temperature must be at least 40 F, and must remain at this temperature or higher for at least 24 hours after application. Apply a weather-resistive barrier and lashing behind the panels as required. (Mix four parts adhesive with one part water.) Vapor Retarders Humidity and temperature conditions may require a vapor retarder. For other system applications,Practices consult your local representative. D Subloor5/8\" or 3/4\" plywood or oriented strand board (OSB), 4' x 8' sheets, exterior grade or superior. adhesive or latex-fortified mortar 23/4\"DUROCK DUROCK tile control joint 20 ga. min. 3-1/2\" THERMAFIBER SAFB 5/8\" SHEETROCK FIRECODE Core gypsum panels optional veneer plasterNotes: DUROCK cement board, 5/8\" thick, may be substituted for 1/2\" cement board panels in all assemblies listed above. Install board abutting top of spacer strip. http://www.usg.com/rc/system-catalogs/durock-cement-board-system-guide-en-SA932.pdf, Page 48 of this document: Do not install board when the board is wet. Fasten to plywood with 1-1/4\" DUROCK tile backerJoint Treatment screws for wood framing or 1-1/2\" hot-dipped galvanized rooing nails spaced 8\" in both directions and aroundApplication edges; it ends and edges closely but not forced together, leaving a 1/8\" gap.3.6 D Joint FinishingPreill joints with latex-fortiied mortar or Type 1 organic adhesive; completely embed DUROCK tileInterior backer tape; and level all joints and outside corners.Ceramic TileApplication A FramingCeiling joists, furring channels or strips must be spaced max. After joints are treated, ceramic wall or floor tile is applied using latexfortified mortar or Type I organic adhesive. When steel framing is used, min. Consideration shall be given to adequate ventilation in plenums and corrosion protection of metal hangers and framing members. C473 15 15 15 Nail-pull resistance lb. 9. vertically. plywood or OSB subfloorSuspended ceiling detail board or underlayment wood or steel joists Note: For bonding cement backerboard to plywood subfloor, use Type 1 organic adhesive or latex-fortified mortar that is suitable for this kind of application. The complete source for building, designing, and remodeling green homes. Damaged and excessively bowed studs shall be replaced before installation of USG Durock cement board panels. A For Tile and Thin BrickPreill all DUROCK cement board joints, and joints where DUROCK cement boards abut other panels or surfaces such as gypsum board, with tile-setting mortar or adhesive, and then immediately embed tape and level the joints. with corrosion-resistant wood or steel screws or hot-dipped galvanized roofing nails. Since studs are at 24\" o.c., laminate cement board to base layer of gypsum panels with a 4\" wide strip of construction adhesive between studs. 3. Press, do not slide, tiles and sheets of tile into adhesive. Under rapid drying conditions, dampening or light fogging of board, leveling/skim or basecoat surface may be required to improve workability. 8), 1-1/4\" and 1-5/8\" for 14- to 20-gauge steel framing; DUROCK tile backer screws for wood framing (No. Apply adhesive with a 1/4" squarenotched trowel. 3-1/2\" THERMAFIBER SAFB joints taped alternate design 5/8\" SHEETROCK FIRECODE Core gypsum panels, one side 1/2\" DUROCK cement board U303 base layer 15/32\" plywood 2 x 4 wood studs 16\" o.c. Framing shall be designed (based on stud properties alone) not to exceed L/360 delection for tile and thin brick, L/240 for Direct-Applied Exterior Finish Systems. Do not use 1/4\" DUROCK cement board for wall or ceiling applications. These products must not be used in a design or construction of any given structure without complete and detailed evaluation by a qualified structural engineer or architect to verify suitability of a particular product for use in the structure. Fit ends and edges closely but not forced together, leaving a 1/8\" gap. ul l541 assembly fire rated revit cad 2022 The Taunton Press, Inc. All rights reserved. Also an ideal underlayment for tile on loors and countertops in new construction and remodeling. Steel framing at building control joints that extend through the wall (with top and bottom runner tracks broken) should have 1-1/2\" cold-rolled channel alignment stabilizers spaced a maximum of 5' o.c. 1-12 2012 United States Gypsum Company Printed in U.S.A. Like this book? Shipped in packaging units as shown. Exterior Applications Finishes, leveling/skim coats and basecoats shall not be applied to a DUROCK cement panel that is wet or frozen or that contains frost. http://www.nationalgypsum.com/resources/construction-guide/NGCPermaBase.pdf, Page 9 of this document: E Adhesives/Mortars Products compatible with alkaline or portland cement-based DUROCK cement board include, but are not limited to the following: Meeting ANSI A136.1 Type 1. NOTE: When applying over old ceramic tile, allow adhesive to set 10 to 15 minutes before applying new tile. Floor applications: Maximum joist spacing 24\" o.c. Here are some links to documents that provide examples: Page 5 of this document: 13. 8\" o.c. Don J., 12. Edges Formed smooth.Technical Data Ends Square cut.Uniform Load Type Size (thickness x width x length)1 Units (pcs)21/2\" DUROCKCement Board Cement Board 1/2\" x 32\" x 5' 50Standards 1/2\" x 36\" x 5' 50 1/2\" x 32\" x 8' 30 1/2\" x 48\" x 8' 30 5/8\" x 36\" x 5' 30 5/8\" x 48\" x 8' 24 1/4\" x 36\" x 5' 60 1. Corrosion Protection All architectural components, such as anodized-aluminum window frames, trims, lashings and casings, shall be protected from alkaline building materials such as cement board, portland cement basecoats, mortars and grouts.Speciications 1.1 Specify to meet project requirements.Part 1: ScopeGeneral All materials, unless otherwise indicated, shall be manufactured by United States Gypsum Company and shall be 1.2 installed in accordance with its current printed directions. over framing spaced a maximum of 16" o.c. 14. on 2 x 8 common plate 3-1/2\" THERMAFIBER SAFB both cavities joints taped load-bearing up to 50% allowable design load Steel Truss Test Number Acoustical Performance STC ITC Test Number Description UL Des P521, P525, 527, 529 5/8\" SHEETROCK FIRECODE C Core gypsum panels RC-1 channels or equivalent joints finished steel roof deck steel truss 48\" o.c. wood above* blocking Type 1 organic 16\" o.c. Open time will vary according to temperature and humidity. u420 ul bsa sm fire rated system 13. Cement board should be separated at all surface and building control joints. u415 ul system assembly fire rated In particular I need fire rating 1h+ and moisture / mold resistance as with cement boards. Its location should be determined by a qualiied mechanical engineer or architect to prevent moisture condensation within the wall. Both wood and steel screws have heads a minimum of 0.40\" in diameter; their drivingLimitations recess is a No. Cement backerboard can be used in 1-hour fire-rated assemblies. Sofits and Ceilings DUROCK cement board systems inished with ceramic tile, thin brick and textured inish may be used on properly vented sofits and ceilings with DUROCK tile backer screws spaced 6\" o.c. roof covering and roof insulation over 1/2\" DUROCK cement board or 1/2\" SHEETROCK gypsum panels United States Gypsum Company SA932 4 Other lengths available. See ANSI A1 18.9 for Test Methods and Speciications for CBU and ANSI A108.11 for Interior Installation of CBU. Exterior steel framing should be laterally braced. 2. Do not use drywall screws or drywall nails. Use wooden or rubber-faced beating block, tapped lightly with a mallet to level and ensure solid tile positioning. Steel framing must be 20-gauge equivalent or heavier with corrosion-resistant metal coating equivalent to G60 hot-dipped galvanized. fire gypsum construction rated hour thickness partition safety garage walls steel sound metal education gauge light continuing studs ceiling internal Drive fasteners into ield of panels irst, working toward ends and edges. u445 A Follow the exterior inish manufacturers recommendations for inishes applied to DUROCK cement board. In locations close to salt water or other challenging environments, design PARTITIONS USG Durock cement board exceeds ANSI standards for cementitious backer units (CBU). Even though the stability and durability of DUROCK Storage of Materials cement board is unaffected by the elements, moisture and temperature variations may have an effect on the bonding effectiveness of basecoats and adhesives. These products must not be used in a design or construction of any given structure without complete and detailed evaluation by a qualiied structural engineer or architect to verify suitability of a particular product for use in the structure. herein are owned by United States Follow good safety and industrial Gypsum or a related company: hygiene practices during handling DUROCK, DIAMOND, DURABOND, FIBEROCK, and installing all products and FIRECODE, IMPERIAL, MOLD TOUGH, systems. DUROCKCement Board SystemsTypical bathtub installation 1/2\" SHEETROCK Fixture attachment steel framing gypsum panel 3/8\" TYPE S-12 Use SHEETROCK joint treatment system and sealer pan head screw for finishing DUROCK to gypsum board joints 1/2\" DUROCK cement steel runner (Refer to 3.7B) in painted areas panel 32\" x 5'-0\" steel framing 1/2\" DUROCK cement membergauge panel 32\" x 5'-0\" and size as requiredsupport ceramic tile DUROCK tile backer 3/8\" TYPE S-12framing for screws for wood pan head screwattachment DUROCK tile framing 8\" o.c. Alkali-resistant glass-iber tape reinforces joints to provide a strong, continuous surface. DUROCKCement Board SystemsPartitions Non-Loadbearing, Steel Framed Test Number Acoustical Performance 1-Hour Fire-Rated Construction U433 STC Test Number Construction Detail Description 45 8\" Test Number Acoustical Performance 1/2\" DUROCK cement board U443 STC Test Number 2-Hour Fire-Rated Construction 3-1/2\" 20 gauge steel studs 16\" o.c 56 SA-851016 Construction Detail 3\" ROXUL mineral wool AFB 5/8\" SHEETROCK brand FIRECODE Core gypsum panels, Based on alternate Design 61 8\" 58 SA-851028 one side 1-Hour Fire-Rated Construction Acoustical Performance Construction Detail Non-Loadbearing, Steel Framed STC Test Number 51 4\" Description Acoustical Performance STC Test Number 1-Hour Fire-Rated Construction 1/2\" DUROCK cement board and 1/4\" ceramic tile 37 USG-840404 Construction Detail base layer 1/2\" SHEETROCK brand FIRECODE C Core 40 USG-830314 5\" gypsum panels Acoustical Performance 518\" 3-5/8\" 20-gauge steel studs 16\" o.c.