Score and Snap Score and Snap is a fast and efficient method of cutting the product using special tungsten tipped Score and Snap knife. Preferably score on the face side of the product. Snap upwards to achieve break. Smooth any rough edges with a rasp. Hand Guillotine Make guillotine cut on the off-cut side of line to allow for the thickness of the blade. Fibreshear Heavy Duty 3.
The figures in this brochure are drawn for timber framing. However, steel framing and furring channels can also be used. A dust-reducing saw uses a dust deflector or a dust collector connected to a vacuum system. When sawing, clamp a straight-edge to the sheet as a guide and run the saw base plate along the straight edge when making the cut. Hole-Forming For smooth clean cut circular holes: Mark the centre of the hole on the sheet.
Pre-drill a pilot hole. Using the pilot hole as a guide, cut the hole to the appropriate diameter with a hole saw fitted to a heavy duty electric drill. For irregular holes: All metal framing centres are to be the same as specified for timber frame in this manual. NOTE: The fasteners must not be over driven as will reduce the holding capaciity of the sheet. Small rectangular or circular holes can be cut by drilling a series of small holes around the perimeter of the hole then tapping out the waste piece from the sheet face.
Tap carefully to avoid damage to sheets, ensuring that the sheet edges are properly supported. All James Hardie building products should be stored to avoid damage, with edges and corners of the sheets protected from chipping. James Hardie building products must be installed in a dry state and be protected from rain during transport and storage. The product must be laid flat under cover on a smooth level surface clear of the ground to avoid exposure to water or moisture, etc.
Quality James Hardie conducts stringent quality checks to ensure that any product manufactured falls within our quality spectrum. It is the responsibility of the builder to ensure that the product meets aesthetic requirements before installation. James Hardie will not be responsible for rectifying obvious aesthetic surface variations following installation. Ribbon board to be continuous for product fixing. For all other buildings specific engineering design is required. Timber battening is to be a minimum of 35mm deep x 40mm wide to achieve adequate sheet nail penetration.
Figure 2: Eaves and soffits mm wide Steel battens must be minimum 0. All battening centres and sheet fixing is to be strictly in accordance with the framing and fixing required by this manual. Care must be taken to ensure the battens are packed and aligned to give a true even surface for the sheets to be fixed.
Check the face of the battens with a long straight-edge before fixing sheets. The temperatures within these smaller roof spaces can reach extreme levels in certain conditions and this can cause cracking in flush stopped joints due to excessive movement in framing. The framing in skillion soffits and ceiling also need engineering design consideration.
General design guide is to provide control joints at 4. For narrow strip soffits provide control joints at 4. The Fastfix method can also be used as an alternative. Mechanical fix at mm centres maximum. To maintain the smoothness of the curve, ceiling battens are generally required at spacings as shown below.
The roof must have been installed before installing the soffits linings. Where the soffits are sloping upwards away from the wall, a mechanical flashing must be provided in the soffit to wall junction. The flashing is fixed under soffit lining and laps over the face of cladding by 35mm min. Refer to Figure Drill a 6mm-diameter hole through the sheet and framing to insert the Fastfix fastener.
In timber the hole must be 40mm deep. Soffit linings are generally fitted into the recess formed in fascia board to form the drip edge. A fire rating of 30 or 60 minutes can be achieved in a soffit when using 6mm or 9mm Villaboard Soffit Lining or 6mm or 7.
Fasteners used in external applications must meet the minimum durability requirements of the NZBC. The minimum bending radii are shown below. All sheet edges are to be supported by framing or a fascia board. Fixings are to be at mm centres to all framing refer Figures 1 and 2. NOTES 1. Sheets can be jointed as per Section 4. Do not screw fix 4. Use only stainless steel fixings in sea spray zones. Screw heads can be finished mm below the sheet surface and stopped.
Hardiesoffit Lining up to a max. For framing and fixing schedules refer to Section 3. Fixings are to be at mm centres to all framing refer Figures1 and 2. In steel framing the fasteners should be driven as close as possible to the stud corners to avoid deflection of the stud flange. The recommended fixing methods are combined nail and adhesive or screw and adhesive.
However, screw or nail fixing only is an option. Refer Figure 4. To achieve a concealed joint, butt the long edges together halfgrooved. Refer Figure 5.
Ensure nails will be hidden by the scotia mould or timber scotia refer Figure 27 and Figure Figure 6: Fastfix fastener and adhesive fixing Figure 8: Soffit cross section 4. Control joints must also be provided where the soffits change in direction, change in level, where there is a construction joint in framing or where the soffits continue into passage ways etc.
See Table 16 for maximum control joint spacing and Figure 9 for a typical control joint detail. Control joints, as shown in Figure 9, must be located at a distance as specified in Table 16 above. Sheets must not be fixed to the bottom cord of roof trusses. Timber ceiling battens must comply with the requirements of NZS or the specific engineering design.
For specific engineering design projects consideration must be given to framing deflections expected due to loadings and appropriate selection of sheet jointing method must be made.
For skillion roof design refer to Clause 3. NOTE 1. To permit movement, control joints must be formed at the perimeter of each bay refer Figures 11, 12, 13 and 14 and at the junction of large ceilings with narrow passage strips or where there is a change in direction also refer Figures 12 and Each bay must be independent of adjacent bays and the surrounding building structure.
Figures 12 and 13 show control joints with the battens running in the same direction as the sheet joint. Figure Timber control joint detail Figure Control joint layout Fix at mm centres with 2. For painted finishes the combined nail or screw and adhesive method gives this superior finish refer Figure Fix at mm centres down each sheet end with edge fixings in each joist or batten.
Double-fix in the centre of each joist or batten refer Figure Do not place nails or screws within mm of adhesive daubs. Daubs of wallboard adhesive 25mm diameter and 15mm thick must be applied to the intermediate joists or battens at mm centres refer Figure When nogs are not installed for perimeter support, the unsupported edges between ceiling joists or battens must be supported with back blocking using a mm wide Villaboard Lining strip adhered to rear face and centred between framing.
It must provide support to all sheet edges and joints. Figure Nail or screw May be used as soffit with expressed joint when istalled as per Figure 23 and fixings as per Villaboard Soffit Lining.
Alternatively, when using square edge Villaboard Lining, the sheet joint must be butted over an Inseal tape with an appropriate flexible sealant in the 1mm joint. Only stainless steel fasteners must be used.
Figure Sheets laid along ceiling joints expressed or butt joints 4. This is critical for flush-jointed sheeting, otherwise cracking at the joint may occur. Refer to Section 5. Work closely with your builder or designer to minimise this. Different levels of finishes are typically specified for different applications. Higher levels of finishes are used to address the glancing light issues with painted Villaboard Soffit Lining referred to above.
No stopping, taping, finishing or accessories are required. For use in areas where finishing and stopping is not considered necessary. Joints and corner joints will be set with James Hardie Base Coat reinforced with perforated paper tape. Surface free from excess jointing compound. Tool marks and ridges are generally acceptable. Minor tool marks and ridges are generally acceptable. This level of finish is not generally suitable where smooth painted surfaces or light to medium wall coverings are specified.
This level of finish must be sufficiently smooth to accept heavy vinyl, tiles or textured coatings without blemishes. Refer to flush jointing recommendations on page To assist in the application of compounds especially with the use of trowels. Hand Guillotine Hand Sander Guillotine for cutting fibre cement. For sanding set joints. For applying tile adhesive to face of Villaboard Lining. For cutting of James Hardie fibre Cement. Used in diluted form over sheet edges to control moisture suction.
Plumb out the fittings. Remove a 30 mm hole from the small flange. The channel on the flanges and firmly push the cups must finish flush with the face of the flanges onto the cups. Fix the wall lining in place. Breathing excessive amounts of respirable silica dust 2. Some BEST studies suggest smoking may increase these risks. NEVER use a power saw indoors.
NEVER use grinders. P1 or P2 respirators should be used in conjunction with above cutting practices to further reduce dust exposures. Additional exposure information is available at www. 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 James Hardie for further information. Score against edges are properly supported.
Snap upwards to achieve break. To avoid damage, all James Hardie building products should Smooth any rough edges with a rasp. Hand guillotine Make guillotine cut on the off-cut side James Hardie building products must be installed in a dry state of line to allow for the thickness of the and protected from rain during transport and storage.
The blade. Fibreshear heavy duty An electrically powered, fast, clean Quality and effortless way of cutting James Hardie building products, James Hardie conducts stringent quality checks to ensure any especially around curves such as archways. Make fibreshear cut product manufactured falls within our quality spectrum. A dust-reducing saw uses a dust deflector or a dust collector which can be connected to a vacuum system.
When sawing, clamp a straight- edge to the sheet as a guide and run the saw base plate along the straight edge when making the cut. The framing and substrate used must comply with the relevant building regulations and standards and the requirements of this manual. For untiled walls the studs spacing must not exceed mm Frames must be straight and true to provide a flush face to centres and noggings centres maximum.
For tiled wall applications studs spacing must be closed to mm for a 6mm Villaboard Lining, and between mm to Figure 1: Frame straightness mm centres for a 9mm Villaboard Lining. Refer Table 10 for further information. At sheet joint the studs must be minimum 45mm wide. Notes 1. For more information refer to the Finishes and Maintenance section on page The timber framing treatment and moisture contents must comply with the requirements of NZS A suggested maximum tolerance of between 3mm and 4mm in any mm length of frame will give best results.
Villaboard 3. Steel framing shall comply with the minimum stiffness requirements of NZS Refer to NASH document 3. Ensure a 6mm Steel sections shall be suitably galvanised zinc coated to comply building tolerance gap is provided at the floor and ceiling with the durability requirements of NZBC. Refer to framing junctions with the Villaboard Lining.
Refer to page 14 for specific manufacturer for further information. Studs must not be less than substrate requirements. For tiled applications it is recommended to use a 0.
The wall surface must be clean, dry and free of any material that will affect the straightness of the battens. Refer to page 13 for further information. Villaboard Lining may be bent to accommodate curved walls. The minimum bending radii are shown below.
Sheet joints must coincide with the centre line of the framing member. Table 4 At door and window openings fix sheets around the opening Curved wall minimum bending radii in a way that the sheet joints do not coincide with the edges of Along Length Across Width openings.
The sheet joint must be mm minimum away from mm mm the opening edge. See Figure 2. Butt joints supported on Vertical Horizontal frame. Ensure they do not sheet sheet coincide with openings layout layout 6mm gap at mm max. For cavity construction method the nogs are generally fixed at mm centres max. Refer to Figure All sheet edges must be supported by the framing. Joints can be staggered.
Put for the intended project. Fasteners must be fully compatible with all other material that Ensuring the sheet is level, fix starting from the centre of sheet they are in contact with to ensure the durability and integrity of and working outwards to avoid any drumminess. On timber frame use Villadrive collated screws for quick Figure 3: First sheet installation of Villaboard Linings.
Alternatively the Villaboard Lining can also be fixed with HardieDrive stainless steel screws or 40 x 2. These screws must not be used in sea spray zones. Nails must be finished flush Figure 5. Screws can be driven 0. In steel framing the fasteners should be driven as close as possible to the stud corners to avoid deflection of the 6mm gap stud flange, see Figure 6.
Refer to Section 6 — Step 7, for finishing of fasteners. Figure 5: Fastener depth Provide mm gap between Villaboard Lining sheets at vertical, horizontal, internal or external corner joints. Drive screw 0. Instead, fix to ceiling battens or furring channels. Figure 4: Fixing remaining sheets Flush nailing Unacceptable: Unacceptable: under driven over driven Figure 6: Screw fastening NOTE: By installing the sheets in this sequence a flush outside surface is maintained.
Where Villaboard Lining is to be left untiled, the sheets can be fixed with fasteners or a combination of fasteners and adhesive, For tiled wall applications studs spacing must be closed to see Figures 7 and 8 respectively. Refer Table 10 for Figure 7: Fastening to wall frames further information. Fix to top and bottom floor and bottom at corners between plate at of sheet floor and Fasten to top and mm centres bottom edge bottom plate at of sheet mm centres max.
Notes Fix to studs at mm max. It is good practice to install Villaboard Lining horizontally for tiled applications. When tiling in wet areas, apply water proofing membranes Notes before tiling on walls. The recessed edges are required to be stopped with James applications.
Hardie Base Coat as per Section 6. The top coat is not required Ensure adhesive does not behind the tiles. The square sheet joint can be sealed with a 6mm gap between coincide with fixings 2. Refer Figure Ensure waterhorizontally When installed proofing full membranes manufacturers perimeter sheet support and stud centres fixing is required. The vertical sheet joints can be staggered.
Fixings not to be staggered at the joint. Refer Figure 9. The top coat is not required behind the adhesive tiles. The square sheet joint can be sealed with a flexible sealant before mm aprox. Refer to Figures 10 and 11 respectively. Nogs to support sheet edges. Refer note 6. Frame centres Stagger sheet butt Figure Fastening to ceiling frames mm max.
Refer note 4. Butt joints to 50mm Villaboard Lining coincide with the min. Do not install tiles in ceiling applications. Ensure sheet perimeter is fastened as Notes shown.
All surfaces to receive adhesive must be clean, free of dust, oil, etc. Batten these out first 4. Linings Installation Manual. These are attached to the wall prior to fitting the metal furring channels.
Pack behind battens as required to achieve a flat surface. Villaboard Lining edges must be supported on the wall. Lining mm max. Where space is a major consideration, use recessed furring channels which have the least section depth.
The sheets can also be fixed vertically using this method. To achieve satisfactory joint performance these factors need to be carefully Villaboard Lining joints are set with proprietary jointing considered and understood by the installer and designer when compounds reinforced with perforated paper tape.
Both positioning joints. James Hardie Base Coat has been specifically developed for use with Villaboard Lining and offers superior joint strength when The performance of joints is the responsibility of the installer, as compared with the gypsum jointing compound alternatives.
In addition, provision for movement needs to be made by the There are various factors that can affect the performance of installation of control joints. See Figure Refer to Figure 21 for this angle's location.
The drying time will vary between 12 to 24 hours depending James Hardie Base upon the weather conditions. Coat powder 3. Primercryl or similar product. Use only perforated paper tapes in straight joints. Initial mixing 7. Mix the resin as per the manufacturer's deliver the ideal workable paste. Warning: Inadequate or over mixing can lead to poor workability and can cause Product Life: performance issues.
Do Not Hand Mix. James Hardie Base Coat has a shelf life of 12 months in unopened bags when stored in a cool dry place.
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