HardieBacker installation manual
Contents
1. P2 head for walls 5 0 x 25 mm head 10 mm PZ2 head for floors FIBATAPE Fibatape 50 mm x 15m alkaline resistant glass fibre mesh reinforcing tape For further information on HardieBacker please contact our customer service team on 0800 068 5105 or info europe jameshardie com To locate a dealer visit www jameshardie co uk dealers JamesHardie 08 2013 James Hardie Technology Ltd All rights reserved TM and denote trademarks or registered trademarks of James Hardie Technology Ltd Additional Installation Information Warranties and Warnings are available at www jameshardie co uk2. Excessive flex will cause the tiled floor to crack e Joist spacing not to exceed 600mm centres 3 Determine layout of HardieBacker e Stagger all HardieBacker joints in a broken bond or brick pattern Do not align with subfloor joints e Never allow all four corners of boards to meet at one point e Leave a 3mm gap between floor and wall edges vanities baths etc and fill with a good quality bathroom sealant e Score and snap boards to required sizes and make necessary cut outs 4 Install HardieBacker to subfloor e Apply a gap filling bed of non flexible tile adhesive to the subfloor using a 6mm notched trowel e Embed HardieBacker with a sliding motion firmly and evenly in the wet tile adhesive e Use the EZ Grid fastener pattern as a guide Fasten HardieBacker with specified nails or screws every 200mm over the entire surface Keep fixings between 15mm from board edges and 50mm from board corners e Set heads of fixings flush with the surface without overdriving 5 Tape joints prior to tiling e Prior to setting the tiles embed 50mm alkaline resistant Fibatape across joints and feather tile adhesive to leave a 150mm wide joint HardieBacker WALL INSTALLATION HardieBacker 12mm is recommended for wall application for thickness transition with other products 1 Ensure framing is structurally sound e Must comply with local building regulations e Max stud centres 400mm Ensure that all corner
3. information e Score and snap e Cutoniv using score and snap Health warning avoid breathing dust James Hardie products contain crystalline silica This mineral is found everywhere in the world often in the form of sand and therefore commonly used in many construction products for example brick concrete glass wool and abrasives The mineral itself is inert but certain building practices such as drilling high speed cutting and abrading can release fine particulate dust which may constitute a health hazard Excessive or protracted inhalation of fine particle silica dust can lead to a lung disease called silicosis There is also some evidence that it may increase the risk of lung cancer if inhaled for prolonged periods Smoking may also exacerbate this risk Like smoking the risk from fine particle silica dust is time and concentration dependent Control To suppress or to reduce excessive inhalation of fine particle silica dust the following steps should be taken to protect operatives who work with products containing silica dust e During fabrication operate outdoors or in a well ventilated space in a separate area if available or away and down wind from other operatives e Use low speed low dust cutting tools Score and snap knife HardieBlade fitted to a circular saw connected to a dust extraction HEPA filter vacuum cleaner see James Hardie tools e When cutting drilling or abrading always wear a FFP2 3 d
4. HardiebBacker CEMENT BACKERBOARD FOR TILE AND STONE MOULD STRONGEST EASY WATER RESISTANT RESISTANT MARKET TO INSTALL What is HardieBacker Cement Backerboard HardieBacker is a cement backerboard for tile and stone to be used as a replacement for plasterboard or plywood It contains Mouldblock Technology giving you superior moisture and mould resistance HardieBacker provides a dimensionally stable cement bonding surface that won t warp swell rot or deteriorate even in the wettest conditions It is available in 6mm and 12mm sheets and provides the best bonding surface for cement based tile adhesive HardieBacker 6mm with EZ Grid has a recessed fastening pattern to make installation even easier HardieBacker is the 1 cement board in the world The perfect finish Your choice of tiles Thin layer of tile adhesive HardieBacker 6mm Cement Backerboard Thin layer of tile adhesive Existing surface Where should HardieBacker Cement Backerboard be used HardieBacker should be used anywhere in your home where tile is applied on floors walls and even countertops It should be used especially in wet areas such as bathrooms and kitchens where walls and floors are particularly exposed to moisture Typically 6mm is used on the floors and 12mm on the walls DO IT ONCE Why do you need HardieBacker Cement Backerboard When it comes to durability strength and moisture resista
5. but if left untreated mould can colonise and release millions of airborne breathable spores Potential health effects and symptoms associated with mould exposure may include allergic reactions asthma and other respiratory complaints WATER MOULD RESISTANT RESISTANT Won t rot swell or warp Mouldblock Technology when exposed to moisture protects the job from dangerous mould growth en F ls g pire ai i j l P f if d af gt li es board protect your family and home Beyond its potential health effects mould can also pose a threat to the value of your home Once mould has established itself it could be very expensive to clean up could cause the market value of your home to decrease and could require you to move out until the mould is properly cleaned Help protect your home and family from moisture that can lead to mould growth before it starts request your builder uses HardieBacker Cement Backerboard for tile and stone A A STRONGEST EASV ON MARKET TO INSTALL Can hold 100kg m while No primer required conventional plasterboards Easv to score and snap claim to hold up to 32kg m t http www british gvpsum com pdf WBO9 Tiling O7 pdf HardieBacker PRODUCT INFORMATION Approved product HardieBacker cement backerboard is CE and BBA approved with certificate no 04 4100 The product meets the EN 12467 standard and has a class Al non combustibilitv rating Warranty HardieBack
6. er cement backerboard is protected 1 O by a 10 year limited product warranty Product availabilitv PALLET PALLET WEIGHT QUANTITY WEIGHT PRODUCT DIMENSION HardieBacker EZ Grid 6mm 1200 x 800 x 6mm 9 kg 60 pcs 540 kg Di ata 1200 x 800 x 12mm 13 8kg 50pcs 740 kg Cutting the sheets Score and snap Straight cuts Sheets are easily cut using the carbide tipped scoring knife Score the board firmly using a straight edge as a guide and pull the board edge upwards to snap the board Circular cuts Score the desired hole size score an x creating a weak point in the centre of the circle then tap it out with a hammer Alternative method is to use a masonry hole saw or a jig saw fitted with a fibre cement board blade HardieBacker FLOOR INSTALLATION Interior Only HardieBacker 6mm is recommended for floor applications to minimize transitions between rooms If additional height is needed HardieBacker 12mm can be used 1 Ensure subfloor is structurally sound on existing floors e Ensure subfloor is not damaged Replace any loose warped uneven or damaged sections of the floor e Make certain the subfloor has a clean and flat surface 2 For all floors e Use minimum 15mm WBP plywood or minimum 18mm T amp G flooring grade chipboard Ensure floor satisfies requirements of local building regulations and does not deflect more than L 360 for ceramic tiles and L 720 for natural stone
7. filling adhesive e Place 3 vertical 10 12mm beads of high strength single part gap filling cartridge adhesive evenly down the back of the board e Press board firmly against the wall into the desired position 3 Fasten HardieBacker 6mm with masonry anchors e Fasten HardieBacker with 9 6mm x 60mm stainless steel screws into brown wall plugs Screws should remain 100mm from the top and bottom edges and 50mm from the left and right edges Ensure min 50mm embedment into the wall e Do not overdrive the screw it must be flush with the face of the HardieBacker 4 Tape joints prior to tiling e Prior to setting the tiles embed 50mm alkaline resistant Fibatape across joints and feather tile adhesive to leave a 150mm wide joint s up to 100kg m2 Frequently asked questions 1 Do I need to prime HardieBacker before tile onto it No HardieBacker is ready to tile once installed just wipe down with a damp sponge to remove any dust prior to tiling 2 Can I fix HardieBacker using a dot and dab technique No HardieBacker is not suited to this type of fixing application Please view the masonry wall installation instructions 3 Can I use HardieBacker for multi fuel or log burning stoves Yes 12mm HardieBacker can be used on masonry walls as a finish to the fire opening or as a reference plate up the chimney itself HardieBacker is not a fire protection board and should not be used as a hearth Clearance
8. nce there is no question that HardieBacker outperforms other tile substrates Plasterboard and plvwood can contribute towards tile failure that can be very expensive to fix Avoid these costly repairs by installing HardieBacker on your next project Avoid costly repairs by using HardieBacker Cracked tiles Moisture can cause other substrates to move and crack tiles Mould growth Other substrates can promote mould growth which can cause health issues for your family Perished plasterboard Plasterboard can disintegrate with continuous exposure to water which can mean having to do the job again Rotting wood Moisture causes wood to expand and contract This loosens tile adhesive bond stresses tile and can cause tile and grout to crack Who should use HardieBacker Cement Backerboard Any homeowner builder tiler plumber carpenter or dryliner who wants their tile installation to last Professionals use HardieBacker as it is trusted for its durability workability and proven performance history DO IT RIGHT 4 a ji mi an mhiy r sp e z sg r 4 ed 7 ii d f g u F m 4 al a J a i rr fg F was id How will HardieBacker Cement Backer The durable cement formulation of HardieBacker provides superior water resistance and its proprietary Mouldblock Technology offers additional protection against mould A low level of mould spores in your home isn t abnormal
9. s are adequately blocked with suitable timber e All existing old dry lining should be removed as it has potential to fail further 2 Determine layout of HardieBacker e Boards may be installed vertically or horizontally e Ensure all vertical joints are made on the centre of the studs e Score and snap boards to required sizes and make necessary cut outs 3 Install HardieBacker 12mm to framing e See applicable building regulations regarding vapour barrier requirements e Use HardieBacker screws or 30mm galvanised roofing nails when using timber studs e Install boards 6mm above the floor bath and shower tray These floor and wall joints should be filled with a 6mm bead of high quality wet area sealant e Keep fixings 15mm from board edges and 50mm in from sheet corners e Set heads of fixings flush with the surface without overdriving 4 Tape joints prior to tiling e Prior to setting the tiles embed 50mm alkaline resistant Fibatape across joints and feather tile adhesive to leave a 150mm wide joint HardieBacker hold HardieBacker MASONRY WALL INSTALLATION HardieBacker 6mm or 12mm can be used on top of masonry walls when space is limited 1 Ensure wall is sound clean and dry and ready to receive HardieBacker e The rear of HardieBacker must be wiped down to remove dust e All existing old dry lining should be removed as it has the potential to fail further 2 Use a high strength gap
10. the 6mm board and the smooth side of the 12mm board 10 Can I finish HardieBacker with anything other than tile Yes HardieBacker can be painted plastered and even wallpapered Health amp safety instructions James Hardie recommended cutting practices Outdoors e NEVER use a circular saw blade e Position cutting station so that that does no carry the wind will blow dust away from HardieBlade logo user or others in working area NEVER dry sweep use wet Use one of the following methods suppression or HEPA Vacuum based on the required cutting rate Good IMPORTANT NOTE For maximum Dust reducing circular saw protection lowest respirable dust with HardieBlade production James Hardie recommends alwavs using Best level cutting Better methods where feasible Dust reducing circular saw equipped with HardieBlade and HEPA vacuum extraction EU OSHA approved respirators can be used in conjunction with above cutting practices to further reduce Best dust exposures Additional exposure information is available at www jameshardieeu com to help you determine Indoors the most appropriate cutting method for your job requirements If concern still exists about exposure levels or you do e Position cutting station in a not comply with the above practices well ventilated area you should always consult a qualified industrial hygienist or contact James e NEVER use a power saw indoors Hardie for further
11. to combustibles must be in accordance with the relevant building regulations Please view the installation instructions for multi fuel and log burning stoves at www jameshardieEU com 4 Can I use HardieBacker in conjunction with under floor heating Yes HardieBacker is suitable for under floor heating It should always be placed between the structural timber floor and the heating element Never place heating under HardieBacker as there is a risk of damaging the system when fixing down the backerboard 5 What is the purpose of taping the joints The 50mm wide alkaline resistant tape will tie the sheets of HardieBacker together helping to disperse any movement of the substrate decreasing the probability of popping or cracking tiles along the seams 6 Can I use HardieBacker outside No HardieBacker is not suitable for external use however we do manufacture other products suitable for exterior use Please contact our UK customer service on 0800 068 3103 7 Can HardieBacker be used in a wetroom Yes HardieBacker must be tanked with a suitable waterproofing system prior to tiling 8 Can I put HardieBacker directly onto concrete No The primary function of HardieBacker is to provide a water resistant flat surface over timber substrates to tile onto it is not designed for use over concrete 9 Which side of HardieBacker should be tiled on Either is acceptable but we recommend the EZ grid side of
12. ust control or full face mask adjusted and fitted in conformity with regulatory recommendations and affixed with CE marking and or fully certified to the relevant EN standards if applicable e Keep the working environment clean and remove debris as soon as possible e At the end of the operation remove dust from clothes tools and work area with a HEPA filter vacuum cleaner or damp with water to suppress the dust before sweeping Remember James Hardie products are no more dangerous than many other building materials containing crystalline silica sand We hope through this information to engage in effective education of the construction industry and build upon the requirements of national health and safety regulations For more information see our installation instructions on www jameshardieeu com or call James Hardie DO IT ONCE DO IT RIGHT Use HardieBacker Cement Backerboard for Tile and Stone Don t forget HardieBacker accessories to make the install quicker and easier HardieBacker SCORE AND SNAP KNIFE Cutting of boards can be performed by scoring a line and snapping the board upwards using a straight edge HardieBlade FIBRECEMENT SAW BLADE Specially designed to produce only a low amount of dust The diamond tipped edges increase blade life Available in 160 mm 190 mm 254 mm and 305 mm diameters SCREWS HardieBacker screws for wood frames 5 0 x 32 mm head 10 mm
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