™ Manufactured Housing (HUD Code only) Tough Siding. Easy Choice. INSTALLATION REQUIREMENTS FOR PRIMED AND FACTORY BUILT COLOR TREATED PRODUCTS – EFFECTIVE OCTOBER 2015 Cemboard® fiber-cement siding IMPORTANT: FAILURE TO INSTALL AND FINISH THIS PRODUCT IN ACCORDANCE WITH APPLICABLE BUILDING CODES AND THE MANUFACTURER’S WRITTEN APPLICATION INSTRUCTIONS MAY LEAD TO PERSONAL INJURY, AFFECT SYSTEM PERFORMANCE, VIOLATE LOCAL BUILDING CODES, AND VOID THE PRODUCT ONLY WARRANTY. CUTTING INSTRUCTIONS STORAGE & HANDLING: Store flat and keep dry and covered prior to installation. Installing siding wet or saturated may result in shrinkage at butt joints. Carry planks on edge. Protect edges and corners from breakage. The manufacturer is not responsible for damage caused by improper storage and handling of the product. OUTDOORS 1. Position cutting station so that wind will blow dust away from user and others in working area. 2. Use one of the following methods: a. Best: i. Score and snap ii. Shears (manual, electric or pneumatic)* b. Better: Dust reducing circular saw equipped with a HardieBlade® saw blade and vacuum dust extraction c. Good: Circular saw with a HardieBlade saw blade (for low to moderate cutting volume) INDOORS 1. NEVER cut with power saws indoors 2. Cut only using score and snap, or shears (manual, electric or pneumatic). 3. Position cutting station in well-ventilated area * Shears and score/snap methods may not be suitable for products thicker than 1/2 in. – NEVER dry sweep – Use wet suppression or Vacuum NIOSH-approved respirators can be used in conjunction with above cutting practices to further reduce dust exposures. Additional exposure information is available at www.jameshardie.com to help you determine the most appropriate cutting method for your job requirements. If concern still exists about exposure levels or you do not comply with the above practices, you should always consult a qualified industrial hygienist or contact the manufacturer for further information. SD083105 GENERAL REQUIREMENTS • All Cemplank lap siding applications require the use of a water resistant barrier. Type of barrier used is the choice and responsibility of the housing manufacturer. • 9 ½” or narrower in width, Cemplank requires a minimum 1¼” minimum overlap. (fig 2) • Cemplank lap siding greater in width than 9 ½” requires a 1 ½” minimum overlap. • Overlapping greater than minimum requirements is acceptable. • Do not install Cemplank such that it may remain in contact with standing water. ® Double Wall Construction Figure 1 water-resistive barrier plywood or OSB sheathing Single Wall Construction 24" o.c. max. let-in bracing Fastening Requirements • Use 0.092 x 2” minimum corrosion resistant nails or 1 ½” 11 ga. (0.120” diameter) corrosion resistant roofing nails. • All Cemplank joints must meet over a stud except when using off-stud joint hardware. The length of each piece of Cemplank joined must be of sufficient length to allow for nailing into at least two studs on either side of the off-stud joint location. • Blind nail method: place the fastener 1” from the top edge of the plank. • Face nail method (required when plank is greater than 9 1/2” in width for wind zone II and III): place the fastener 5/8” from the bottom edge of the plank. • Place 1 nail per stud. fastener Install a 1 1/4" starter strip to ensure a consistent plank angle leave appropriate gap between planks and trim, then caulk*** 16” Stud Spacing WIND ZONE II WIND ZONE I No sheathing requirements WIND ZONE III Minimum 3/8” nail based OSB or plywood sheathing 0.113 thermal ply red sheathing* 1/4” fome-cor sheathing** Studs must be doubled within the first three feet at corners on side and end walls stud Minimum 3/8” nail based OSB or plywood sheathing 0.113 thermal ply red sheathing* 1/4” fome-cor sheathing** 24” Stud Spacing Figure 3 stud Stud SHEATHING REQUIREMENTS water-resistive stud WIND ZONE I, II, and III Joint barrier water-resistive Flashing Minimum 7/16” nailMinimum based OSB or plywood barrier overlap ax water-resistive barrier 24” O.C. max 24" Figure 4 24" O.C. max. O.C. max. Minimum overlap 1 1/4” min. for Overlap Both Face and Blind Nailing for Both Face Minimum overlap for Both Face and Blind Nailing 3/4"-1" min. 1 1/4" overlap 3/4”-1” min. 1 1/4" overlap Nail Face Nail 1 1/4" min. overlap 1 1/4" min. overlap water-resistive barrier min. 1 1/4" overlap water-resistive barrier 1 1/4" min. overlap 3/4"-1" face nail face nail water-resistive barrier Laminate sheet to be removed immediately after installation of each course for Factory Built Color products Water Resistive * Minimum 5/16” gypsum must be used on the interior side of the wall for non-corner zones Barrier ** Minimum 5/16” gypsum must be used on the interior side of the wall Water Resistive Barrier DANGER: Do not breathe dust 24" O.C. max. stud Figure 2 and Blind Nailing l Line 24" O.C. max. Fiber cement is not a health hazard when handled or stored in its original, unaltered condition. The hazard associated with fiber cement arises from crystalline silica present in the dust generated by activities such as cutting, rebating, drilling, routing, sawing, crushing, or otherwise abrading fiber cement, and when cleaning up, disposing of or moving the dust. When doing any of these activities in a manner that generates dust: (1) follow James Hardie instructions and best practices to from thisafter product. Respirable moved immediately installation of each course fortheFactory Built Color reduce or limit release of dust; (2) warn othersproducts. in the area to avoid the dust; (3) when using mechanical saw or high speed cutting tools, work outdoors and use dust collection equipment; and (4) if no other dust controls are available, wear a Crystalline Silica Dust causes damage to lungs and respiratory system through prolonged or repeated inhalation. NIOSH-approved dust mask or respirator (e.g., the N 95 dust mask). Refer to the product Safety Data Sheet before use. Do not handle product until all safety precautions have been read and understood. Wash hands and face thoroughly after handling. If exposed to dust or concerned, get medical advice. If shortness of breath or other health concerns develop after exposure to dust from the product, seek medical attention. Dispose of product in accordance with local, state and national regulations. If there are no applicable regulations, dispose of in a secure landfill, or in a way that will not expose others to dust. WARNING: This product contains a chemical known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov/product. For more information contact: James Hardie Building Products, Inc., 231 S. LaSalle St., Suite 2000, Chicago, IL 60604 USA 1-888 JHARDIE www.jameshardie.com www.jhsafesite.com waterba JOINT TREATMENT Double Wall Single Wall • Cemplank lap siding horizontal joints are to be flashed or designed in such Construction Construction a way to prevent waterbarrier from entering the interior portionlet-in of the wall. The bracing water-resistive 24" o.c. max. method used is the choice and responsibility of the housing manufacturer. plywood or OSB only): Use sheathing acrylic or latex based caulk meeting • Caulk (primed product ASTM C-834 or C-920 standards. Caulk should indicate performance that is permanently elastic or flexible. Follow caulk manufacturer’s requirements for application/use. • Plastic/Metal joint connector: Spacing is determined by the design of the hardware. • Cemplank lap siding is allowed to touch at butt joints without the use of joint sealants or hardware devices. GENERAL FASTENING REQUIREMENTS Fasteners must be corrosion resistant, galvanized, or stainless steel. Electro-galvanized are acceptable but may exhibit premature corrosion. The manufacturer recommends the use of quality, hot-dipped galvanized nails. The manufacturer is not responsible for the corrosion resistance of fasteners. Stainless steel fasteners are recommended when installing Cemboard® products near the ocean, large bodies of water, or in very humid climates. water-resistive barrier PNEUMATIC FASTENING Cemboard products can be hand nailed or fastenedfastener with a pneumatic tool. Pneumatic fastening is highly recommended. Set air pressure so that Install a 1 1/4" starter strip to the fastener is driven snug with the surfaceensure of theasiding. A flush mount consistent plank angle attachment on the pneumatic tool is recommended. This will help control the depth the nail is driven. If setting the nail depth proves difficult, choose leavethe appropriate gap between a setting that under drives nail. (Drive under driven nails snug with a planks and trim, then caulk* smooth faced hammer - Does not apply for installation to steel framing). Figure 5 water-resistive barrier stud 1" from plank top joint flashing** 3/8" from plank edge install planks in moderate contact Joint Treatment **(Required for Factory Built Color Finish, recommended for primed products) It is not recommended to use caulk at field butt joints. Install factory finished edges together at butt joints CAULKING For best results use an Elastomeric Joint Sealant complying with ASTM stud water-resistive C920 Grade NS, Class 25 or higher or a Latex Joint Sealant complying barrier with ASTM C834. Caulking/Sealant must be applied in accordance with the caulking/sealant manufacturer’s written instructions or ASTM C1193. concrete foundation PAINTING DO NOT use stain on Cemboard products. Cemboard products must be painted within 180 days for primed product and 90 days for unprimed. HardiePlank® Do not paint when wet. For 100% acrylic topcoats 6" min.are recommended. lap siding application rates refer to paint manufacturers specifications. Back-rolling is recommended if the siding is sprayed. FACTORY BUILT COLOR TECHNOLOGY CAULKING, TOUCH-UP & LAMINATE • Touch up nicks, scrapes and nail heads using the Factory Built Color technology touch-up applicator. Touch-up paint should be used • Consult applicable code compliance report for correct fasteners type sparingly. If large areas require touch-up, replace the damaged area ® lap siding Figure A with Factory Built and placement to achieve specified design wind loads. with new CemplankFigure Color B technology. • NOTE: Published wind loads may not be applicable to all areas • Laminate sheet must be removed immediately after installation of water each course. where Local Building Codes have specific jurisdiction. siding Consult the resistive manufacturer’s Technical Services if you are unsure of applicable barrier • Terminate non-factory cut edges into trim where possible, and caulk. 1" - 2"your Factory Built Color compliance documentation. Color matched caulks are available from deck material • Drive fasteners perpendicular to siding and framing. product dealer. 1" - 2" • Fastener should fit snug against siding (no air space). (fig. A ) • Treat all other non-factory cut edges using the Factory Built Color 1" heads - 2" • Do not over-drive nail heads or drive nails at an angle. technology edge coaters, available from your Factory Built Color joist flashing • If nail is countersunk, caulk nail hole and add a nail. (fig. B) product dealer. • For wood framing, under driven nails should be hit flush to the plank ledger ® SIDING AND TRIM PRODUCTS with a hammer (For steel framing, remove and replace nail). PAINTING CEMBOARDflashing • Do not use aluminum fasteners, staples, or clipped head nails. WITH FACTORY BUILT COLOR TECHNOLOGY When repainting Factory Built Color products, the manufacturer recommends the following regarding surface preparation and topcoat application: Step flashing • EnsureSelf-adhering the surface is clean, dry, and free of any dust, dirt, or mildew membrane • Repriming is normally not necessary siding kickout • 100% acrylic topcoats are recommended Self-adhering Do not 1/4" gap eaves membrane siding • DO NOT use stain or oil/alkyd base paints on Cemboard products Caulk Kickout • Apply finish coat in accordance flashing with paint manufacturers written CUT EDGE TREATMENT 1" instructions regarding coverage, application methods, and application Drip edge fascia Caulk, paint or prime flashing all field cut edges. temperature gutter and end cap Housewrap RECOGNITION: In accordance with ICC-ES Legacy Report NER-405, Cemplank® lap siding is recognized as a suitable alternate to that specified in: the BOCA National Building Code/1999, the 1997 Standard Building Code, the 1997 Uniform Building Code, the 1998 International One-and Two-Family Dwelling Code, the 2003 nternational Building Code, and the 2003 International Residential Code for One-and Two-Family Dwellings. Cemplank® lap siding is also recognized for application in the following: City of Los Angeles Research Report No. 24862, State of Florida listing FL#889, Dade County, Florida NOA No. 02-0729.02, U.S. Dept. of HUD Materials Release 1263c, Texas Department of Insurance Product Evaluation EC-23, 24" City of New York MEA 223-93-M, and California DSA PA-019. These documents should also be consulted for additional information concerning thestud suitability of this product for specific applications. O.C. max. stud water-resistive barrier 24" O.C. max. © 2015 JHTL All rights reserved. TM, SM, and ® denote trademarks or registered trademarks of JHTL. Minimum overlap CEM1004 10/15 for Both Face and Blind Nailing 3/4"-1"
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