Design Guide. HardieSmart ZeroLot Wall System (Class 1 & 10a) SYSTEMS FRL 60/60/60 ONE WAY. Rw R kn/m

Transcription

1 per wall per wall FRL 60/60/60 ONE WAY Rw R 2.1 per wall per wall kn/m Design Guide HardieSmart ZeroLot Wall System (Class 1 & 10a) SYSTEMS Certificate CM20136 Australia October 2017 Make sure your information is up to date. When specifying or installing James Hardie products, ensure that you have the current technical information and guides. If in doubt, or you need more information, visit or Ask James Hardie on

2 CONTENTS INTRODUCTION 3 MINIMUM REQUIREMENTS 3 APPLICATIONS 3 SYSTEM SPECIFICATION 4-5 System Configurations 4 System Performance (per wall) 4 Main Components 4 HardieZeroLot Panel Accessories 5 Fasteners (not supplied by James Hardie) 5 Sealants (not supplied by James Hardie) 5 Other (not supplied by James Hardie) 5 TOOLS 5 SAFE WORK PRACTICES 6 Fibre Cement 6 HardieFire Insulation 6 DESIGN CONSIDERATIONS 7-9 General 7 Slab and Footings 7 Termite Management 7 Boundary Setback 7 Fire Resistance 7 Bracing Performance 7 Thermal Performance 7 Weather Resistance 7 Coastal Areas 8 Fastener Type Limitation 8 Component Substitution 8 Framing 8 Services and Fixtures 9 Component Installation 9 CONSTRUCTION SEQUENCE HARDIEZEROLOT PANEL INSTALLATION STEPS SYSTEM INSTALLATION STEPS CONSTRUCTION DETAILS Base Details 18 Floor Junctions 19 Roof Details Wall Junctions Wall Services ONLINE TOOLS 29 WARRANTY 29 CODEMARK CERTIFICATION 29

3 DETACHED HOUSING GARAGES CLASS 1 & 10a 6mm Villaboard Lining HardieZeroLot Panel 90x45/35mm Timber Studs 30mm service cavity Min 25mm separation 60mm HardieFire Insulation Services refer to Design Considerions 30mm service cavity HardieWrap Weather Barrier LOT Introduction This guide contains product information, technical specification, construction details and design considerations for the HardieSmart ZeroLot Wall System. What is a "Zero Lot" Line Home? When a building has one boundary wall built against the property line the house is said to have a virtually "zero lot" line. This is common in terrace style homes. HardieSmart ZeroLot Wall System comprises two HardieSmart Boundary Walls built back to back with at least one built modularly. The external wall face is fitted with a specialised pre-sealed cladding known as HardieZeroLot Panel designed for areas with restricted access for maintenance. Advantages Creates more usable space within the lot. Maximises indoor space using a compact solution. Flexible building process: the construction of independent structures, rather than traditional semi-detached buildings. Connection to adjoining properties is not required as the system is built and placed in modules. Minimum Requirements The HardieSmart ZeroLot Wall System is designed for dual and single zero lot boundaries. It is suitable for use in Class 1 and 10a timberframed buildings with a Fire Resistance Level (FRL) requirement of 60/60/60 minutes or less. For higher FRL, please consult James Hardie. Applications Typical applications are depicted below. These are based on National Construction Code (NCC) 2016 Volume 2 and do not cover all applications and limitations, the designer must check all NCC requirements before specifying. If more information is required to assess suitability, please contact James Hardie. Dual Zero Lot (Detached Row Housing) LOT A LOT B LOT C Boundary Wall 60/60/60 FRL Boundary Wall 60/60/60 FRL Single Zero Lot (Exterior Wall Against Existing Structure) Existing boundary wall INFILL LOT Boundary Wall 60/60/60 FRL Existing boundary wall WALL LOT B WALL LOT C Dual Exterior Walls NEW WALL EXISTING WALL Single Exterior Wall HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 3 OF 32

4 System Specification System Configurations Dual Zero Lot For fully detached row housing. Single Zero Lot For boundary walls built against existing walls FRL Total R-value Bracing 90mm Timber Stud Frame 3 4 System Performance (per wall) 4 90mm Stud Frame 3 60/60/60 minutes ONE WAY 2.1 m 2. K/W kn/m (depends on fixing method, refer to Design Considerations) See Design Considerations for framing specification, structural capacity, fire resistance and other limitations Main Components 1 HardieZeroLot Panel A fibre cement sheet with a ship lap joint along both 3000mm long edges. Pre-sealed with CoreShield technology and designed for unexposed maintenance-free applications. Size (mm) 3000 x 1200 x 8.5 Mass (kg/m 2 ) 12 Part No HardieWrap Weather Barrier A non-perforated, highly breathable and reflective safe-glare weather barrier designed to be used behind cladding. Length (mm) 2750 x 30,000 Weight per roll (kg) 9 Part No. / Coverage / 82.5 (m2) 3 60mm HardieFire Insulation NEW Mineral wool insulation specifically designed for use in fire applications with select HardieSmart Systems. Pack Size: 7 batts Size (mm) Part No Coverage (m 2 ) 1160 x x x Thickness (mm) 60 Material R-value 1.7 (m 2.K/W) Density (kg/m 3 ) mm Villaboard lining Fibre cement internal lining sheet with a recessed edge. Suitable for tiled and untiled internal wall applications in dry and wet areas. Sizes (mm) 900 x (2400, 3000) 1200 x (1800, 2400, 2700, 3000, 3600, 4200) 1350 x (2400, 3000, 3600, 4200) Mass (kg/m 2 ) 8.3 Part No. See Villaboard lining manual All dimensions and masses provided are approximate only and subject to manufacturing tolerances. Masses are based on equilibrium moisture content of product. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 2 OF 28 PAGE 4 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

5 HardieZeroLot Panel Accessories James Hardie 9mm Aluminium Horizontal Step Flashing A reversible aluminium flashing designed to be used at floor junctions and horizontal joints of HardieZeroLot panel. Length (mm) 3600 Pack Size 4 units per pack Part No James Hardie Aluminium 9mm External Corner A ready to paint aluminium extrusion to be used at external corner junctions to conceal the board edge. Size (mm) 3000 Pack Size 5 units per pack Part No James Hardie 50mm wide Foam Back Sealing Tape A self-adhesive foam tape to help improve water tightness. It is applied under sheet joins to the HardieWrap weather barrier along the stud face. Length (m) 25 Part No Other (not supplied by James Hardie) Fire Resisting Mineral Wool Used to seal cavities and maintain FRL at junctions of the selected wall system. Please see Construction Details for applications. Refer to manufacturer for guidance on installation. Tools Reciprocating Saw or Hand Saw for cutting HardieFire Insulation Used for cutting insulation when required. Ensure to cut 5mm wider than required to ensure compression of insulation in the cavity. Tools For Fibre Cement A suite of tools are available for cutting and handling James Hardie fibre cement. Please refer to James Hardie's Best Practice Guide for more information. Fasteners (not supplied by James Hardie) Fibre Cement Nail for fixing HardieZeroLot Panel and Villaboard lining 2.8 x 30mm min. Class 3 corrosion resistant fibre cement nail. 2.5 x 50mm gun nails are also suitable. Check with nail manufacturer for suitability. Sealants (not supplied by James Hardie) Fire and Acoustic-Rated Sealant Use Bostik FireBan One fire rated sealant or equivalent. If using an equivalent sealant it must be tested in accordance with AS and achieve a minimum 60 minute fire rating. Contact the relevant sealant manufacturer for more information. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 3 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 5 OF 32

6 Safe Work Practices Fibre Cement James Hardie products contain sand, a source of respirable crystalline silica which is considered by some international authorities to be a cause of cancer from some occupational sources. Breathing excessive amounts of respirable silica dust can also cause a disabling and potentially fatal lung disease called silicosis, and has been linked with other diseases. During installation or handling, ensure to follow James Hardie's Best Practice Book and SDS for James Hardie fibre cement products available at HardieFire Insulation Electrical cables and services adjacent to HardieFire insulation Foil facings are conductive to electricity. Care must be taken when installing HardieFire insulation in the proximity of electrical wiring and lighting fixtures. Avoid contact with uninsulated electrical cables and fittings. If required, HardieFire foil facing may be removed using a utility knife. Consult a qualified Electrician, or contact James Hardie for further information. Storage and Handling Store in an internal dry area, out of direct sunlight and not exposed to chemicals. It must not be installed during an electrical storm and it must be installed in a dry state to a dry surface and protected from weather during transport and storage. HardieFire insulation has not been designed to withstand prolonged direct exposure to the exterior elements. Ensure that the insulation is completely dry prior to fitting. Before Installation You must turn the mains power Off before entering the workspace. If in doubt, you must consult a licensed electrician. Care and safety measures must be followed when working in areas that contain live electrical wiring. Defective electrical cables, terminals or any other electrical wiring must be repaired by the relevant specialist prior to installation. Ensure workspace has adequate and ample ventilation. If working in confined spaces, it is recommended to use a HEPA vacuum or other suitable dust extractors. Before entering workspace, complete a risk assessment inspection to identify hazards including but not limited to electrical, site access and ventilation. Cutting It is recommended to cut outdoors. If cutting indoors, please ensure that workspace is properly ventilated or HEPA vacuums/dust extractors are used. 1. Position cutting station so wind will blow dust away from the user or others in working area. 2. Use either a hand saw or a reciprocating saw. Disposal Discard any waste pieces of HardieFire insulation in accordance with your local council guidelines. Dispose of the material in such a manner to prevent exposure and escape. Further Health and Safety Information For more information refer to the HardieFire insulation SDS available at jameshardie.com.au. Protective Equipment Keep exposure to a minimum and minimise quantities kept in work areas. Avoid contact with eyes. When handling and installing HardieFire insulation, to prevent irritation ensure you wear: Safety goggles/glasses conforming to AS/NZS 1336, Protective clothing such as gloves and long sleeve shirts and trousers, P1 or P2 respirators. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 4 OF 28 PAGE 6 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

7 Design Considerations General All design and construction must comply with the appropriate requirements of the NCC and other applicable regulations and standards. The specifier or other party responsible for the project must ensure that the details in this specification are appropriate for the intended application and that additional detailing is performed for specific design or any areas that fall outside the scope of this specification. Slab and Footings The slab and footings on which the building is situated must comply with AS 2870 Residential Slabs and Footings Construction and the requirements of the NCC. SLAB SEPARATION: For detached construction, the designer must ensure that there is suitable slab separation between dwellings. This can be achieved by using a flexible bond breaking material (e.g. material for control joints) when setting out the slab. Refer to NCC and local regulations for more information. Termite Management Due to restricted access at zero lot boundary walls, a suitable and certified termite management mechanism in accordance with AS or a reticulation system must be installed at the boundary slab e.g. Termimesh, Cordon and alike. Please consult the relevant manufacturer for more information. Boundary Setback The HardieSmart ZeroLot Wall System specifies a minimum setback of 12.5mm from the boundary line when capped and installed in accordance with this guide. When the HardieSmart ZeroLot Wall System is not capped and is built against an existing structure, a minimum setback of 500mm is recommended. Due to exposure, the HardieSmart ZeroLot panels will need to be coated and maintained in accordance with this guide (see coating section). Please note that council, state or other regulations may apply in your development which specify different setbacks, height, width and other design criteria. Additionally, confirmation in writing in the form of a statutory declaration from the registered owner of the adjoining premises may be required to demonstrate compliance. The designer or specifier must ensure that the system is fit for purpose and complies with the relevant requirements and regulations. Fire Resistance NCC Vol. 2 Section requires boundary walls to maintain an FRL of 60/60/60 minutes. HardieSmart Systems have been assessed by the CSIRO Division of Building Construction and Engineering and the Building Research Association of New Zealand (BRANZ) in accordance with the principles of AS (FCO-3222 and FCO-3036 Rev. D). Bracing Performance For two sided systems i.e. comprising of both James Hardie external cladding and internal lining products of 6mm in thickness, the bracing capacity is typically 4 kn/m for plain timber framing and standard fixing methods. The capacity may be increased to a range of 6-10 kn/m for other fixing methods and anchor rods of 12mm diameter. For more information and specification, the designer must refer to James Hardie's Structural Bracing Application Guide (designed in accordance with AS 1684 'Residential Timber Framed Construction'). James Hardie's Structural Bracing Application Guide contains fixing details and the bracing capacity for James Hardie sheet bracing and other fibre cement cladding. All design capacities quoted are Ultimate Limit State (ULS) figures and have been certified by consulting engineers, Cardno (NSW) Pty Ltd. Thermal Performance This guide outlines certified modelled Total R-values for HardieSmart Wall Systems. Use this information to assist in satisfying the minimum deemed to satisfy NCC thermal resistance requirements and in verification software tools. Total R-values are based on using HardieWrap weather barrier with an emissivity of 0.16W/m 2. The Total R-values for common systems are in accordance with AS4859.1:2002 including Amendment 1:2006 'Materials for Thermal Insulation of Buildings'. Weather Resistance The external cladding of the HardieSmart ZeroLot wall system has been designed in accordance with Clause P2.2.2 of the NCC. For any variations, it is the responsibility of the designer or specifier to identify moisture related risks associated with any particular building design. Wall construction design must effectively manage moisture, accounting for both the interior and exterior environments of the building, particularly in buildings that have a higher risk of winddriven rain penetration or that are artificially heated or cooled. All wall openings, penetrations, intersections, connections, window sills, heads and jambs must be flashed prior to cladding installation. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 5 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 7 OF 32

8 Coastal Areas In areas within 1km of a coastal area, areas subject to salt spray and other corrosive environments, class 4 fasteners must be used. All other areas require a minimum class 3 fastener. Fasteners must be fully compatible with all other materials that they are in contact with to ensure the durability and integrity of the assembly. Contact the fastener manufacturer for more information. Fastener Type Limitation Brad nail and/or adhesive fixings are not recommended in fire and acoustic-rated systems. Please refer to the respective product manufacturer for alternative fixing methods. Component Substitution James Hardie fibre cement products and components such as HardieFire insulation and HardieWrap weather barrier must be as specified in the system. No statement of performance will be provided by James Hardie when alternative products are used. Framing Material Stud Size Stud Spacing Nogging Spacing Seasoned timber only. Timber used for house construction must have the level of durability appropriate for the relevant climate and expected service life. Must use minimum MGP10 or F7 grade timber. Reference AS1684 Residential Timber Framed Construction. 90 x (45 or 35)mm minimum HardieZeroLot panel requires minimum 45mm at vertical sheet joints, therefore, a double stud will be required. If 35mm studs are used, they must be fastened together. 600mm maximum Check whether you require closer stud spacings for your site wind pressures and tile weight (only for tiled walls). NOTE: HardieFire insulation sizes have been optimised for 45mm studs at 600mm centres and 35mm studs at 450mm centres, cutting may be required otherwise. 1200mm maximum Structural Capacity Stud Drilling Tolerance The load bearing capacities of the timberframed walls must be in accordance with AS1684 Residential Timber-Framed Construction and AS1720 Timber Structures. Note: Sacrificial timber blocking is installed in addition to the required structural framing members and cannot be relied upon for any structural support. Stud Size (mm) Maximum Wall Height (mm) Stud Load Capacity (kn/stud) 90x x x x Where the stud is to be penetrated horizontally to allow services such as plumbing or electrical conduits to pass between stud bays, only 1 in every 5 studs may be drilled a maximum of 20mm in diameter 10mm from the edge (refer to Figure 35) in accordance with AS 1684 and AS If larger or additional stud penetrations are required, then: Option 1: Limited Floor Span Refer to Figure 35 and ensure the following conditions are satisfied: F7 or MGP10 timber grade Zero Lot wall is exposed to wind pressure, it does not exceed N2 Min. stud size 90x45mm Drill studs within 500mm of stud ends Limit the lower storey foor span to 5.8m (for MGP10) and 4.6m (F7). Note that the load width of the Level 1 floor which bears onto an internal wall is the sum of the two adjacent spans divided by two for simply supported construction Min. Wall height is 2400mm Option 2: Additional Stud If conditions in Option 1 cannot be satisfied, then ensure to install a double stud as per AS1684. Refer to Figure 35 Ensure frame is square and work from a central datum line. Frames must be straight and true to provide a flush face to receive the sheeting. A suggested maximum tolerance of between 3mm and 4mm in any 3000mm length will give best results. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 6 OF 28 PAGE 8 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

9 Sacrificial Timber Services and Fixtures The service cavity is designed to allow services to be run vertically from the ceiling into the wall. Where services are run horizontally through the studs to pass between bays, refer to the Framing section under Design Considerations and Figure 35 for installation guidelines. Services may only be run in the service cavity between the insulation and the lining (i.e. must not exceed 20mm deep). WARNING: When fixing lining, avoid nailing near pipes or cables as it may cause damage. Electrical Plumbing and Electrical Conduits Wall Fixtures Air Conditioning Sacrificial timber blocking is used in addition to the standard timber framing to protect structural members. Sacrificial timber should have minimum density of 550kg/m 3. Where specified, differentiated by red hatching in the Construction Details section of this Guide, sacrificial timber blocks must be a minimum 45mm thick. Sacrificial timber blocks are to be arranged so that they are continuous. If blocks cannot be continuous, additional blocking must be provided in front of the joint. Reference FCO-3222, Figure 5 & Appendix B.6-B.7. Electrical cables may be run within the service cavity. Refer to Figures 36 to 38. Plumbing pipes with a diameter up to 20mm may be run in the service cavity as per Figure 35. Any larger pipes must be relocated to non-fire rated partitions. For taps and other details, refer to Figures When fixing brackets, cabinets, shelves or any other fixture that requires the wall to carry a load, they must be fixed to the framing member (i.e. studs) and must not rely solely on the lining. Pipes with an outside diameter up to 20mm and carrying non-flammable refrigerants may be run inside the service cavity. Component Installation HardieWrap Weather Barrier HardieFire Insulation Villaboard Lining HardieZeroLot Panel Others Refer to HardieWrap weather barrier datasheet for more information on standard installation. For modular construction, follow this guide. Must be used as the frame cavity infill and must be compressed 5mm minimum in both vertical and horizontal directions (i.e. batt size must be at a minimum 5mm wider and longer than frame stud bay). Avoid joints in insulation batts, if present, all gaps must be filled with compressed HardieFire insulation. Position batts hard against external wall face to allow for an internal service cavity. Must be installed in accordance with the current Villaboard lining installation guidelines. Follow this guide. For other components not supplied by James Hardie ensure to follow the instructions set out in this guide and the respective manufacturer's recommendations. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 7 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 9 OF 32

10 Construction Sequence When constructing a dual zero lot system, one external wall may be built with the standard construction method. The adjacent wall will need to be built in modules. Wall modules can be built in-situ or prefabricated by a specialised frame manufacturer for on-site assembly. 2 First Wall Construction Build, tilt, fix and brace wall module 1 Slab Separation Provide slab separation between tenancies and install termite barrier. See Design Considerations. 4 Upper Storey Modular Wall 5 Repeat steps of lower storey; however, note that James Hardie Step Flashing is required at the floor junction. Roof Treatment Install HardieFire insulation and lin before installing roof trusses. See in modular construction. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 8 OF 28 PAGE 10 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

11 s. 3 Building First Floor Several options are available for joist treatment, refer to Construction Details and modular installation steps. Existing or newly built wall in standard construction method (see p.10-11) ing up to the roof line stallation steps for 6 Insulation, Lining and Services. Install HardieFire insulation, services and lining. Services are run vertically from the top or bottom plates, see Figure 35 for pipe installation instructions. HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 9 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 11 OF 32

12 HardieZeroLot Panel Installation Steps Unrestricted Site Access Step 3 Foam Tape At every vertical sheet join, a 50mm foam back sealing tape is applied under the shiplap vertical joint and in front of the HardieWrap weather barrier. Step 1 Frame Preparation Construct frame to suit the site wind classification. Note that corners and junctions will require additional stud members. Refer to the relevant Construction Details. TABLE 1 MAXIMUM STUD AND FASTENER SPACING AS PER AS4055 Region N1-N4, C1-C2 N5, C3 N6, C4 Stud Spacing Panel Fastener Spacing Remove protective seal from back of EPDM foam tape 50mm EPDM foam back sealing tape Step 2 Framing, Wrap and Flashings Ensure that frame is straight. James Hardie recommends a maximum tolerance of 3mm in 3000mm. Affix HardieWrap weather barrier to frame followed by corner accessories. Fix Corner Accessories in both flanges with a max. 300mm fastener spacing. See Table 1 Install HardieWrap weather barrier, fix with staples at 450mm centres FIGURE 2 FOAM TAPE APPLICATION Step 4 Position HardieZeroLot panel must be installed vertically with all sheet edges fully supported. Centre of sheet joints must coincide with the centre line of the framing member and all sheets are installed in one direction. To ensure the fasteners fixed at the edge of the sheet have sufficient clearance from the edge, position the underlap sheet 3mm beyond the centre of the stud at every stud. 45mm 50mm EPDM foam back sealing tape HardieWrap weather barrier 90mm timber stud FIGURE 1 FRAME PREPARATION Ensure adequate ground clearance where required, min. 150mm 18mm FIGURE 3 FIRST PANEL PLACEMENT Position 3mm beyond stud centre line HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 10 OF 28 PAGE 12 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

13 Step 5 Fix First Panel Fix the first HardieZeroLot panel with the recommended nails as per Figure 4. Nails must be driven flush, do not overdrive. Step 7 Fix Subsequent Panels 45mm 12mm top edge clearance See Table 1 See Table 1 50mm EPDM foam back sealing tape HardieWrap weather barrier 90mm timber stud 18mm side edge clearance 6mm 18mm FIGURE 6 SECOND PANEL FASTENER CLEARANCE Step 8 Coating (only for exposed areas) 50mm at corner FIGURE 4 FASTENER SPACING Step 6 Apply Joint Sealant 50mm EPDM foam back sealing tape HardieWrap weather barrier Continuous 4mm diameter bead of James Hardie Joint Sealant applied to underlap HardieZeroLot panels are factory sealed with James Hardie's CoreShield technology penetrating sealer. This sealer has been designed for zero lot applications and does not require additional coating; however, for wall areas that are visible and fully exposed to the elements, you must apply a roll-on texture coat within 6 months of fixing. All sheets must be dry before painting. James Hardie recommends the application of a roll-on exterior texture coat system over the panels in accordance with the paint manufacturer s specifications. Some environments require special coatings including coastal areas. Painting specifications are dependant on the paint chosen. Refer to the paint manufacturer for further information, product suitability, specifications, maintenance and details of their warranty. Notch tip of sealant nozzle to act as a guide down the sheet edge FIGURE 5 APPLY JOINT SEALANT TO SHIPLAP JOINT HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 11 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 13 OF 32

14 System Installation Steps Restricted Site Access Step 1 Stage Materials The components required for the HardieSmart ZeroLot Wall System must be staged during construction. Typically, a set of materials are required at framing stage and others at lining stage. The below lists do not consider all elements required for construction such as nails, adhesives, etc. Refer to the Accessories section for more information. FRAMING STAGE: Involves building wall modules. These comprise of the following components: Timber frame HardieWrap weather barrier HardieZeroLot panels James Hardie Step Flashing James Hardie 50mm wide Foam Back Sealing Tape Step 3 Determine Wall Module Size Ensure you have selected the optimum lengths and heights of wall modules. This is critical to achieve optimum speed of construction and ease of installation. Wall modules height and length should not exceed 3.6m. To determine wall module dimensions, you must consider the following: HardieZeroLot panel sizes; Boundary wall length and height (wall module must not exceed storey height); Module weight, please refer to Table 2. When planning your wall module lengths, ensure cut edges are placed in the wall ends and intermediate modules are a multiple of the sheet width in length as the shiplap factory edge (Figure 8) is required for module jointing, refer to Figure 15. NOTE: A small portion of HardieFire insulation may be required at framing stage for roof cavity, see installation sequence. LINING STAGE: HardieFire insulation Villaboard lining Fire and acoustic-rated joint sealant Cut edges Factory edge Factory edge Factory edge Sheet width Factory edge Cut edges Step 2 Set Out Slab or Base Install slab separation and termite management system in accordance with the Design Considerations section. Concrete slab FIGURE 7 SLAB SEPARATION Termite barrier in accordance with local regulations 20-50mm 10mm separation between slabs using flexible bond breaker FIGURE 8 WALL MODULE SIZE AND EDGES TABLE 2 WALL MODULES WEIGHT FOR 600MM STUD CENTRE Module Weight (kg) Module Height (mm) Module Width (mm) Table Notes: Please note that masses and dimensions are approximate only. These are subjected to manufacturing tolerances and other factors such as moisture content. The weights listed below have been used in the values set out in Tables 3 and 4. It does not consider flashings, damp-proof course and any other elements not listed below: Timber frame: 429 kg/m3. Assuming density of softwood traditional pine timber studs with a moisture content of 16.2%, which may vary. HardieWrap weather barrier: 0.11kg/m2 HardieZeroLot panels: 12 kg/m2 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 12 OF 28 PAGE 14 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

15 Step 4 Build Wall Frames Build the frame modules on ground with maximum 600mm stud spacings. Add the required additional timber blocking at wall intersections. 45x90mm sacrificial timber block at partition junction Step 6 HardieWrap Weather Barrier and Foam Tape After frames are levelled and braced, place back on the ground and install HardieWrap weather barrier. It is recommended to fix with a suitable hammer tacker and staples at 450mm centres. Overhang the wrap by min. 150mm from frame side edges. This is required when jointing wall modules, see Figure 15. HardieWrap weather barrier 50mm EPDM foam back sealing tape at sheet joins under shiplap (not required at wall ends) See Figure 34 for Construction Detail FIGURE 9 SACRIFICIAL TIMBER AT WALL JUNCTIONS Step 5 Level & Brace Once pre-built, place the frame into position to check levelling. Ensure frame module is levelled and square (e.g. cross-braced). 150mm overhang FIGURE 11 HARDIEWRAP INSTALLATION Step 7 HardieZeroLot Panels On each module: 1. Ensure that on one end, the overlap of the HardieZeroLot panel is hanging off the frame by 25mm. 2. On the other end, the underlap should be 20mm inside the frame edge. 90mm timber stud Shiplap joint Modulus width multiples of 1.2m FIGURE 10 LEVELLING WALL FRAMES Install 9mm Aluminium Box Corner at wall ends (if 9mm James Hardie board is continued on return) 25mm overhang 50mm EPDM foam back sealing tape 20mm underlap HardieZeroLot panel HardieWrap weather barrier 150mm overhang from edge A vertical sheet overhang may be required (see Figure 15 for options) FIGURE 12 HARDIEZEROLOT PANEL INSTALLATION HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 13 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 15 OF 32

16 Step 8 Lift First Wall Module Wall modules may be lifted manually or by crane (this will depend on the module size and weight). If craning modules into position, the lifting points and connections must be designed by the relevant specialist in accordance with the relevant codes and practices. Ensure to anchor frame to slab as per frame manufacturer recommendations. Step 11 Jointing Wall Modules Shiplap joint Height of joist Suitable sarking tape FIGURE 15 VERTICAL JOINT OF WALL MODULES Wrap HardieWrap weather barrier and tape to studs Step 12 Floor Junction Place sacrificial timber at the floor junction prior to resting the floor joist on 45mm bearing or fix pole plate to continuous wall. FIGURE 13 LIFT AND ANCHOR - WALL MODULES Step 9 Temporary Bracing Place adequate temporary bracing to ensure lateral restraint of the modules. Option 1 45mm solid sacrificial timber blocking See Figure 24 Parallel or perpendicular floor joists with max. 45mm bearing on top plate of frame Option 2 See Figure 25 FIGURE 14 LIFT AND ANCHOR - WALL MODULES Step 10 Subsequent Wall Modules Repeat steps 4-9. FIGURE 16 INSTALLING FLOOR JOISTS HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 14 OF 28 PAGE 16 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

17 Step 13 Step Flashing After the partitions and floor boards have been installed and the upper storey is accessible, fix James Hardie Step Flashing to the structural flooring board as indicated below. Step Flashing, fixed to structural flooring at 300mm centres overlapping bottom HardieZeroLot panel Step 16 Fix HardieFire Insulation Install the HardieFire insulation within stud bays with at least 5mm compression. Avoid joints in insulation batts, if present, all gaps must be filled with compressed HardieFire insulation. Push insulation all the way against the HardieWrap weather barrier. ENSURE TO FOLLOW BEST PRACTICE AND WEAR APPROPRIATE PROTECTIVE EQUIPMENT. Structural flooring Fit 60mm HardieFire insulation to back of stud bay, leaving 30mm clearance for services FIGURE 19 HARDIEFIRE INSTALLATION FIGURE 17 INSTALLING STEP FLASHING Step 14 Upper Storey Repeat steps 3-11 for the upper storey, note that wall modules must extend to the roof line. Refer to Construction Details for roof options. Step 15 Roof Cavity Based on your roof construction detail follow the appropriate detail (See Figures 26-31). Ensure to fix Villaboard lining and HardieFire insulation prior to fixing the roof trusses to the wall. HardieFire insulation in stud bays underneath cladding Floor joist See Figures for options Step 17 Install Services Services to be run vertically from the ceiling into the wall within the stud bay. If stud drilling is required to allow for pipes or conduits, refer to Figure 35 for instructions. Do not penetrate insulation. Refer to Figures for Construction Details FIGURE 20 INSTALLATION OF SERVICES Step 17 Fix Villaboard Lining Villaboard lining to be installed in accordance with the current installation manual. Fix Villaboard lining at 200mm fixing centres around the edges and 300mm centres through the middle. Parallel or perpendicular roof trusses or frames FIGURE 18 ROOF CAVITY FIXING FIGURE 21 VILLABOARD LINING INSTALLATION HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 15 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 17 OF 32

18 Construction Details Base Details 90mm stud HardieZeroLot panel 6mm James Hardie internal lining HardieWrap weather barrier Boundary line 6mm gap fully caulked with fire-rated sealant Damp proof course 20-50mm Slab separation in accordance with NCC requirements and local regulations (see Design Considerations) Termite barrier in accordance with local regulations FIGURE 22 SLAB DETAIL FOR DUAL BOUNDARY SYSTEM 90mm stud 6mm James Hardie internal lining HardieZeroLot panel Existing neighbouring wall HardieWrap weather barrier Boundary line Damp proof course 6mm gap fully caulked with fire-rated sealant Slab separation and termite barriers in accordance with local regulations FIGURE 23 SLAB DETAIL FOR SINGLE BOUNDARY HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 16 OF 28 PAGE 18 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

19 Floor Junctions 6mm James Hardie internal lining HardieZeroLot panel HardieWrap weather barrier Structural flooring James Hardie Step Flashing 45mm continuous sacrificial timber blocking behind joists Additional structural blocking if required. Refer to Framing Design Considerations. PERPENDICULAR FLOOR JOIST 45mm continuous sacrificial timber blocking Where sacrificial timber cannot be discontinuous, solid timber joist is required PARALLEL FLOOR JOIST Non fire-rated ceiling lining Gap must not exceed 25mm and must be covered by cornice FIGURE 24 DISCONTINUOUS WALL FLOOR JUNCTION (RECOMMENDED) Plaster cornice 6mm James Hardie internal lining HardieZeroLot panel HardieWrap weather barrier Structural flooring James Hardie Step Flashing PERPENDICULAR FLOOR JOIST PARALLEL FLOOR JOIST Non fire-rated ceiling lining Gap must not exceed 25mm and must be covered by cornice Plaster cornice FIGURE 25 CONTINUOUS WALL FLOOR JUNCTION HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 17 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 19 OF 32

20 Roof Details Suitable fire resistant mineral wool insulation to maintain FRL (HardieFire insulation not suitable) Suitable corrosion resistant capping Roof sheeting or tiles installed in accordance with manufacturer instructions 6mm James Hardie internal lining HardieFire insulation Perimeter support Gap must not exceed 25mm and must be covered by cornice 6mm James Hardie internal lining HardieWrap weather barrier Boundary line HardieZeroLot panel 90mm stud FIGURE 26 DUAL ZERO LOT ROOF WITH PARALLEL ROOF TRUSSES Suitable corrosion resistant flashing and capping Roof sheeting or tiles installed in accordance with manufacturer instructions Parallel roof truss attached to timber stud 6mm James Hardie internal lining Perimeter support 6mm gap fully caulked with fire-rated sealant HardieWrap weather barrier 6mm James Hardie internal lining HardieZeroLot panel Boundary line 90mm stud FIGURE 27 DUAL ZERO LOT PARAPET ROOF WITH PARALLEL ROOF TRUSSES HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 18 OF 28 PAGE 20 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

21 Suitable fire resistant mineral wool insulation to maintain FRL (HardieFire insulation not suitable) Roof sheeting or tiles installed in accordance with manufacturer instructions 45mm continuous sacrificial timber blocking to maintain FRL Suitable corrosion resistant capping 6mm James Hardie internal lining (joints not set) Boundary line 45mm solid timber pole plate Ceiling lining Gap must not exceed 25mm and must be covered by cornice HardieWrap weather barrier HardieZeroLot panel 6mm James Hardie internal lining 90mm stud FIGURE 28 DUAL ZERO LOT FRAMED ROOF PERPENDICULAR Extend metal capping over box gutter upstand to fully protect lining from moisture Suitable corrosion resistant capping Roof sheeting or tiles installed in accordance with manufacturer instructions 6mm James Hardie internal lining (joints not set) Suitable box gutter, 50mm + height of water Ceiling lining Gap must not exceed 25mm and must be covered by cornice 45mm solid timber pole plate HardieWrap weather barrier HardieZeroLot panel 6mm James Hardie internal lining Boundary line 90mm stud FIGURE 29 DUAL ZERO LOT PARAPET ROOF WITH PERPENDICULAR TRUSSES HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 19 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 21 OF 32

22 Roof sheeting or tiles installed in accordance with manufacturer instructions Corrosion resistant metal flashing to seal cavity Timber packers. Any gaps must be filled with fire resistant mineral wool to maintain FRL of wall system (HardieFire insulation is not suitable) Bottom chords extended timber continuous blocking (refer to truss manufacturer) Ceiling lining Gap must not exceed 25mm and must be covered by cornice 45mm solid continuous sacrificial timber HardieWrap weather barrier 6mm James Hardie internal lining HardieZeroLot panel 90mm stud FIGURE 30 DUAL ZERO LOT ROOF WITH PERPENDICULAR TRUSSES AND BOX GUTTER Suitable corrosion resistant capping Suitable fire resistant mineral wool insulation to maintain FRL (HardieFire insulation not suitable) Boundary line HardieZeroLot panel Ceiling lining Gap must not exceed 25mm and must be covered by cornice HardieWrap weather barrier Suitable corrosion resistant apron flashing to seal cavity Roof sheeting or tiles installed in accordance with manufacturer instructions 6mm James Hardie internal lining HardieWrap weather barrier 90mm stud HardieZeroLot panel FIGURE 31 DUAL ZERO LOT ROOF AT DIFFERENT HEIGHTS HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 20 OF 28 PAGE 22 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

23 Wall Junctions 6mm James Hardie internal lining HardieWrap weather barrier HardieZeroLot panel 90mm stud 6mm gap fully caulked with fire-rated sealant Boundary line 45mm continuous sacrificial timber blocking, extending from bottom to top plate Non fire-rated internal lining HardieWrap weather barrier 75x75mm James Hardie corner flashing Axent Trim or suitable corner accessory Selected external cladding FIGURE 32 JUNCTION WITH LIGHTWEIGHT EXTERNAL WALL 6mm James Hardie internal lining HardieWrap weather barrier 90mm stud 6mm gap fully caulked with fire-rated sealant HardieZeroLot panel Boundary line 45mm continuous sacrificial timber stud, extending from bottom to top plate Non fire-rated internal lining Suitable fire resistant mineral wool insulation to maintain FRL (HardieFire insulation not suitable) Brick articulation joint in accordance with manufacturer instructions Corrosion resistant flashing HardieWrap weather barrier FIGURE 33 JUNCTION WITH BRICK VENEER WALL HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 21 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 23 OF 32

24 6mm James Hardie internal lining 90mm stud 6mm gap fully caulked with fire-rated sealant 2 x additional timber studs Non fire-rated internal lining HardieZeroLot panel 45mm continuous sacrificial timber stud, extending from bottom to top plate HardieWrap weather barrier Boundary line FIGURE 34 INTERNAL NON FIRE-RATED WALL JUNCTION HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 22 OF 28 PAGE 24 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

25 Wall Services Ceiling lining Step 1 Run all pipes and conduits through ceiling or floor. Step 2 Drill or notch (max. 20mm) top/bottom plate to run the pipes into the required stud bay. DRILLING THE PLATE Install additional 45mm timber block Max. 20mm drill or notch DRILLING BOTTOM PLATE Max. 20mm drill or notch Structural floor DRILLING STUDS 5 Studs OPTION 1* (45mm stud) OPTION 2 HOLE CLEARANCE 90mm 10mm Max 20mm Min. 270mm 500mm 500mm DRILL CLEARANCE DRILL Step 3 (if required) If stud drilling for more than 1 in every 5 studs is required to pass pipes, a restricted drill height must be followed (Option 1) or alternatively, a fixed double stud (Option 2) is installed. Step 4 Treat the pipe wall exit in accordance with the relevant Construction Detail in this guide. * Option 1 has a minimum wall height of 2400mm, minimum stud width of 45mm and a limited allowable lower storey floor span of 6m for MGP10 timber grade and 5m for F7 timber grade. For other grades or timber sizes Option 2 must be followed. Refer to Design Considerations for more information or contact James Hardie Engineering Solutions on FIGURE 35 PIPE SERVICE PENETRATIONS THROUGH TIMBER STUDS AND PLATES HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 23 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 25 OF 32

26 Pin cables to the side Standard GPO installed in accordance with manufacturer's instructions HardieWrap weather barrier 6mm James Hardie internal lining 60mm HardieFire insulation 90mm stud HardieZeroLot panel 6mm gap fully caulked with fire-rated sealant Drill or notch through stud to run cables where necessary. WARNING: Avoid foil contact with uninsulated cables and fittings, refer to Safety Section for more information FIGURE 36 ELECTRICAL SERVICES (GPO/POWER POINTS) - SECTION FROM ABOVE HardieZeroLot panel Electrical cables pinned or taped to stud where required HardieWrap weather barrier 6mm James Hardie internal lining Standard GPO installed in accordance with manufacturer's instructions Bracket for power point fixed to stud WARNING: Avoid foil contact with uninsulated cables and fittings, refer to Safety Section for more information. FIGURE 37 ELECTRICAL SERVICES (GPO/POWER POINTS) - SECTION FROM SIDE HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 24 OF 28 PAGE 26 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

27 Cables pinned to stud edges 60mm HardieFire insulation Bracket for powerpoint fixed to stud Standard GPO installed in accordance with manufacturer's instructions 6mm James Hardie internal lining WARNING: Avoid foil contact with uninsulated cables and fittings, refer to Safety Section for more information. FIGURE 38 ELECTRICAL SERVICES (GPO/POWER POINTS) PERSPECTIVE Selected James Hardie external cladding 6mm thick or greater HardieWrap weather barrier 90x45mm additional timber noggin for tap support. Insert nogging prior to HardieFire insulation 60mm HardieFire insulation Continuous 6mm bead of wet area appropriate fire-rated sealant around tap 6mm Villaboard lining installed, waterproofed and tiled as per Wet Area Construction Guide Plumbing services run vertically through 30mm service cavity. WARNING: When fixing lining, avoid nailing near pipes or cables as it may cause damage. Refer to Figure 35 for plate and stud penetration details. FIGURE 39 HOT/COLD PLUMBING TAPS - PERSPECTIVE HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 25 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 27 OF 32

28 WARNING: When fixing lining, avoid nailing near pipes or cables as it may cause damage. Refer to Figure 35 for plate and stud penetration details. Continuous 6mm bead of wet area appropriate fire-rated sealant around tap 6mm Villaboard lining installed, waterproofed and tiled as per Wet Area Construction Guide Refer to Figure 35 for drill hole size and location 90x45mm additional timber noggin for tap support. Insert nogging prior to HardieFire insulation Plumbing services run through 30mm service cavity HardieWrap weather barrier HardieZeroLot panel FIGURE 40 HOT/COLD PLUMBING TAPS - SECTION FROM ABOVE WARNING: When fixing lining, avoid nailing near pipes or cables as it may cause damage. Refer to Figure 35 for plate and stud penetration details. HardieZeroLot panel 6mm Villaboard lining installed, waterproofed and tiled as per Wet Area Construction Guide HardieWrap weather barrier 90x45mm additional timber noggin for tap support. Insert nogging prior to HardieFire insulation Plumbing services run vertically through 30mm service cavity. Continuous 6mm bead of wet area appropriate fire-rated sealant around tap FIGURE 41 HOT/COLD PLUMBING TAPS - SECTION FROM SIDE HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 26 OF 28 PAGE 28 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

29 Online Tools Estimation tools, CAD details, and site specific documents are available via James Hardie's specification website accel.com.au. For more information visit the or Ask James Hardie on Warranty HardieSmart Wall System components supplied by James Hardie are backed by a Warranty. The Warranty period will vary based on the specific system component. For Warranty Terms & Conditions refer to or Ask James Hardie on CodeMark Certification Certificate CM20136 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE APRIL 2017 PAGE 27 OF 28 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 29 OF 32

30 Notes PAGE 30 OF 32 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017

31 HARDIESMART ZEROLOT WALL SYSTEM DESIGN GUIDE OCTOBER 2017 PAGE 31 OF 32

32 For information and advice call jameshardie.com.au Australia October James Hardie Australia Pty Ltd ABN and denote a trademark or registered mark owned by James Hardie Technology Limited.