outdoors - hardiedeck · 2018. 8. 10. · outdoors. hardiedeck™ installation guide. australia....

OUTDOORS

HardieDeck™

Installation Guide

Australia August 2018

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 www.jameshardie.com.au or Ask James Hardie™ on 13 11 03.

2 HARDIEDECK™ SYSTEM INSTALLATION GUIDE

FIGURE 1 OVERVIEW OF THE HARDIEDECK™ SYSTEM

HardieDeck™ Fascia Edge Cap

HardieDeck™ Snap-In Top Strip

HardieDeck™ Double Winged Base Jointer

HardieDeck™ Edging Board or Finishing Board

CONTENTS PAGE1 BASIC INSTALLATION 32 COMPONENTS & ACCESSORIES 43 TOOLS 54 SAFE WORKING PRACTICES 55 DESIGN CONSIDERATIONS 6-7 Termite Management Framing Ventilation Requirements Ground Clearance Swimming Pools Coastal Areas Alpine Areas (Zone 8) Battened Concrete Slabs Span Capacity & Loading Fastener Durability Water Drainage Slip Resistance Balustrade Bushfire Prone Areas

6 DESIGN AND DETAILING 8-11 Layout Perimeter and Edges Joints Corners Abutments Fascias Penetrations Stairs and Treads

7 SEALING 118 CARE INSTRUCTIONS 129 PRODUCT INFORMATION 1210 WARRANTY 12

HardieDeck™ system combines specially machined 19mm thick fibre cement decking boards with a specifically designed aluminium fast track system that provides the concealed fastening mechanism. The jointing system consists of an anodised aluminium base jointer which is screwed to the framing joists, and a powder coated snap in cover which covers the screw heads and provides a continuous contrasting line between the decking boards. HardieDeck™ boards must be sealed with a James Hardie™ recommended paving sealer and finished within 60 days. For installations around pools and within 1km of coastal areas, apply the coating within 7 days. To see product specifications and recommendations refer to the HardieDeck™ Sealing Guide. This Installation and Specification Guide covers the use of the HardieDeck™ system in a residential deck application. Like traditional timber decking, HardieDeck™ is not a watertight system and is therefore not suitable for applications that require a watertight system. Some water will drain past the fixing system. As with any deck, ensuring adequate cross-flow ventilation of the subfloor space is essential in any usage of the system. Inadequate ventilation may invalidate any product warranty provided both with respect to the HardieDeck™ boards and any third party coating warranty. This guide provides information specific to the installation of the HardieDeck™ system but is not exhaustive of all information relevant to the construction of a deck. The particular design considerations for any deck are unique to its situation, design and regional location. Before starting see Design Considerations on page 6 for more information.

INSTALLATION NOTES1. Install, finish and maintain this product in accordance with applicable building codes, regulations, standards and James Hardie’s written application

instructions. Failure to do so may lead to personal injury, affect system performance, violate local building codes and void James Hardie’s product warranty.

2. All warranties, conditions, liabilities (direct, indirect or consequential) and obligations whether arising in contract, tort or otherwise other than those specified in James Hardie’s product warranty are excluded to the fullest extent allowed by law. For James Hardie’s product warranty information see the warranty section at the back of this guide.

3. The builder must ensure the product meets the aesthetic requirements before installation. For full warranty terms and conditions visit HardieDeck.com.au James Hardie™ will not be responsible for rectifying aesthetic surface variations following installation.

4. The product specifier or any other party responsible for the project must ensure that the details in this specification, including structural and flashing details, 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.

To check for updated information on technical solutions and sealers visit HardieDeck.com.au or call 13 83 53

HARDIEDECK™ SYSTEM INSTALLATION GUIDE 3

Selected Edge Capping

10mm30mm overhang

Option 1: Continuous

Option 2: Square

See Figure 7A for detailing.

See Figure 7B for detailing. Refer to Table 1for joist spacing25

mm Selected Edge Capping

Leave an overhang of 30mm on all deck edges to facilitate the fitting of edge caps.

Note: Ensure the chamfered edges of thedecking boards are fully painted.

‘Snap!’

NOTE Before building your deck, you must read the Design Considerations section on page 6 to ensure HardieDeck™ system is suitable for your project.

STEP 2 Prepare the substructure for your chosen design, ensuring that minimum ground clearance is 150mm to the lowest horizontal member in the subfloor.

STEP 3 Place the first board with an overhang and temporarily fix the edge capping to secure the first board.

STEP 5 Fasten the base jointer at every joist. For the correct screw types for timber and steel frames see Fasteners page 4.

STEP 6 Remove temporarily fixed edge cap.STEP 4 Slide the base jointer into the first board. Then slide the second board into the base jointer. At the base jointer junctions, leave a 10mm gap to facilitate drainage.

STEP 9 Fix edge capping at 450mm centres around perimeter of deck. See Perimeter and Edge options page 8.

STEP 7 Use an appropriate, compatible coating within 60 days (7 days if around a pool or close to the coast). See Finishing and Coating page 11.

STEP 8 After the coating dries, tap in Snap-in Top Strip until it clicks.

STEP 1 Choose the desired decking layout, joint and edge capping options. Refer Design and Detailing pages 7-10.

DESIGN PREPARED FRAME SET OVERHANG

FIX

FINISH

Fix at 450mm centres

Selected Edge Capping

1 BASIC INSTALLATION

PRODUCT CODE

PRODUCT NAME

PRODUCT DESCRIPTIONLENGTH

(MM)WIDTH(MM)

THICKNESS(MM)

EFFECTIVE COVER (MM)

MASSSCHEMATIC

404780HardieDeck™ Board

Main decking board slotted in both long edges.

3000 196 19 210 19

PRODUCT CODE

PRODUCT NAME

PRODUCT DESCRIPTIONLENGTH

(MM)WIDTH(MM)

THICKNESS(MM)

EFFECTIVE COVER (MM)

SCHEMATIC

404781HardieDeck™ Edging Board

Decking board slotted in one long edge. The unslotted edge is exposed as an edging option or used as a fascia board.

3000 196 19 210 19

404782HardieDeck™ Finishing Board

Wider decking board with no slots. Used for pattern variation and stair treads.

3000 296 19 296 29

PRODUCT CODE PRODUCT NAME PRODUCT DESCRIPTION

LENGTH (MM) SCHEMATIC

305843 HardieDeck™ Wingless Base JointerUsed on HardieDeck™ board short ends to create a square or panelised look.

3000

305844 HardieDeck™ Fascia Edge Cap fascia board.

3000

305846 HardieDeck™ Slimline Edge Cap or without a fascia board.

3000

PROFILE TYPE OF FIXING PRODUCT DESCRIPTION

STEEL FRAMING

Concealed in Fast-track fixing system

8-18 gauge 16mm long pan head metal tek screw (min. class 3*) max. 10mm dia. head

Face FixHardieDrive™ Screw 40mm long

1,000 per box. Part No. 305533

TIMBER FRAME

Concealed in Fast-track fixing system

Minimum 25mm long pan or wafer head needle point screw (min. class 3*) max. 10mm dia. head

Face Fix Stainless Steel 8-10 gauge, type 17, 50mm long decking screw

HardieDeck™ system

HardieDeck™ options

Fasteners

PRODUCT CODE PRODUCT NAME PRODUCT DESCRIPTION

LENGTH (MM)

WIDTH (MM) SCHEMATIC

305841HardieDeck™ Double Winged Base Jointer

300014

(excluding wings)

305842Snaps into Base Jointer after coating to conceal fasteners.

3000 12

Used to join all long edges of the HardieDeck™ boards.

HardieDeck™ Snap-In Top Strip

(KG/M2)

MASS(KG/M2)


HardieDrive™ Screw 40mm long A Class 3 finish self-tapping wing-tipped screw for fastening to 0.8 to 1.8mm BMT steel frames. 1,000 per box. Part No. 305533

* Class 4 or stainless steel fasteners are required in corrosive environments including but not limited to pools and areas within 1km of the coast. Ensure that all components used are compatible with each other and suitable for the proposed application.

2 COMPONENTS AND ACCESSORIES

CUTTING & FIXING TOOLS (SUPPLIED BY JAMES HARDIE)

ACCESSORIES DESCRIPTION

HardieBlade™ Saw Blade. 185mm diameterA poly-diamond blade for fast and clean cutting of James Hardie™ fibre cement.

1 each. Part No. 300660

NOT SUPPLIED BY JAMES HARDIE

James Hardie recommends the following products for use in conjunction with the HardieDeck™ system. James Hardie does not supply these products. Please contact the component manufacturer for information on their warranties and further information on their products.

Slide Compound Mitre Saw Used for cutting decking boards.

110mm Wet Saw Cutter Used for cutting decking boards.

Makita B-60 Tungsten Jig Saw Blade or equivalent Used in compatible jig saws.

Dust-reducing Saw Used with a HardieBlade™ saw blade.

Jig Saw For cutting small sections.

Cordless Drill

to steel and timber framing.

CUTTING & FIXING TOOLS

ACCESSORIES DESCRIPTION

NOT SUPPLIED BY JAMES HARDIE

James Hardie recommends the following products for use in conjunction with the HardieDeck™ system. James Hardie does not supply these products. Please contact the component manufacturer for information on their warranties and further information on their products.

Exterior trafficable paving sealer.

Epoxy flush sealing (2 part)-OPTIONALCountersunk head screws are flush sealedusing Megapoxy P1. Where the temperature is below 15º use Megapoxy PF. Used over face fixed fasteners.

Vacuum Extraction with appropriate dust filterA well maintained vacuum and filter approriatefor capturing fine (respirable dust.)

JAMES HARDIE RECOMMENDED SAFE WORKING PRACTICES

CUTTING (OUTDOORS)1. 2.

Position the cutting station so wind will blow dust away from the user or others in working area.

DRILLING / OTHER MACHINING When drilling or machining you should always wear a P1 or P2 dust mask and warn others in the immediate area.

APPROPRIATE PRACTICE1. For maximum protection (lowest respirable dust production), James Hardie

recommends always using the best cutting methods.2. Do not use a power saw indoors.3. Do not use a circular saw blade that does not carry the HardieBlade logo.4.5. Do not use grinders.6. Always follow tool manufacturers’ safety recommendations.

Position the cutting station in a well-ventilated area. Use a dust reducing circular saw equipped with HardieBlade™ Saw Blade or comparable fibre cement blade and well maintained vacuum and filter appropriate for capturing fine (respirable) dust

James Hardie recommends the use of P2 respirators as best practice. As a minimum, an AS/NZS1716 P1 respirator must be used when doing any activity that may create dust. For more extensive guidance and options for selecting respirators for workplaces please refer to Australian/New Zealand Standard 1715:2009 “Selection, Use and Maintenance of Respiratory Protective Equipment”. P1 or P2 respirators should be used in conjunction with the above cutting practices to minimise dust exposure. For further information, refer to Safety Data Sheet (SDS) available at www.jameshardie.com.au. 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.

DUST MASKS AND RESPIRATORS


WARNING - DO NOT BREATHE DUST AND CUT ONLY IN WELL VENTILATED AREAJames 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. Some studies suggest smoking may increase these risks. During installation or handling: (1) work in outdoor areas with ample ventilation;(2) minimise dust when cutting by using either ‘score and snap’ knife, fibre cement shears or, where not feasible, use a HardieBlade™ Saw Blade (or equivalent) and dust-reducing circular saw attached to an appropriate, well maintained, filtered vacuum; (3) warn others in the immediate area to avoid breathing dust; (4) wear a properly-fitted, approved dust mask or respirator (e.g. P1 or P2) in accordance with applicable government regulations and manufacturer instructions to further limit respirable silica exposures. During clean-up, use appropriate, well maintained vacuum and filter appropriate for capturing fine (respirable) dust or use wet cleanup methods - never dry sweep. For further information, refer to our installation instructions and Safety Data Sheets available at www.jameshardie.com.au or www.hardiedeck.com.au. FAILURE TO ADHERE TO OUR WARNINGS, SAFETY DATA SHEETS, AND INSTALLATION INSTRUCTIONS MAY LEAD TO SERIOUS PERSONAL INJURY OR DEATH.

STORAGE AND HANDLINGTo avoid damage, James Hardie™ building products should be stored with edges and corners of the product protected from chipping. James Hardie™ building products must be installed in a dry state and protected from weather 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 and moisture

OTHER MATERIALS

3 TOOLS 4 SAFE WORKING PRACTICES

5 HARDIEDECKTM SYSTEM INSTALLATION AND SPECIFICATION GUIDE FEBRUARY 2016

5 DESIGN CONSIDERATIONSThe designer must consider all design considerations outlined below prior to specifying the HardieDeck™ system.

All design and construction must comply with the appropriate requirements of the current National Construction Code (NCC) and any other applicable regulations and standards current at the time of construction.

5.1 TERMITE MANAGEMENT

HardieDeck™ boards are resistant to termite damage. Any timber used for framing must be termite-resistant, preservative-treated timber or have a termite barrier to protect the primary building elements (e.g. frame and decking, stairways and ramps to the extent not constructed using HardieDeck™ boards). Please refer to AS 3660.1 for more information and requirements.

NOTE: Where installation of a termite barrier is chosen, AS 3660.1 requires attachments to buildings, such as decks, to have a clearance greater than 25mm from the building. This allows visual inspection. (see Figure 2)

FIGURE 3 RECOMMENDED FALL

1 in 100 min. fall recommended

5.2 FRAMING

Floor joists must be minimum 45mm wide. In order to achieve an acceptable finish, it is necessary for all framing to be straight. A suggested tolerance is 3-4mm over 3 meters in all directions. If installing in a Bushfire Prone Area refer to page 6.

• Timber Framing Use of timber framing must be in accordance with AS 1684 ‘Residential timber-framed construction’, and be CCA treated dry kiln timber or durable hardwood. To help protect against moisture ingress and rot, always prime the end grain of timber members.

• Steel Framing Use of steel framing must be in accordance with NASH standard for residential and low rise steel framing Part 1 and the framing manufacturer’s specifications. Framing members must be in the range 0.6mm to 1.9mm BMT (base metal thickness). The steel framing must have the appropriate level of durability required to prevent corrosion.

5.3 CONCRETE FOOTING

HardieDeck may be fixed over concrete to battens provided the concrete is in good condition. Battens must be attached to the concrete in order to keep the deck in place. There must be adequate fall to assist drainage and battens must run in the direction of that fall (i.e. battens must not retain water under the deck). The battens may be of either timber or steel, be deemed suitable and stable, provide a minimum of 45mm clearance off the concrete and be of the same specifications as listed in 5.2 Framing. The connection of the battens to the concrete must be designed by the relevant specialist and if waterproofing is required, the connection must be tested and warranted by the waterproofing manufacturer. Ensure that the deck has adequate cross-ventilation (i.e. do not box all sides).

FIGURE 2 DECK TO WALL JUNCTION

HardieDeck™ System

10mm gap between deck board and external wall

25mm gap between deck frame and external wall

5.4 SPAN CAPACITY & LOADING

The Building Code of Australia (BCA) requires that floor structures be designed to meet the load requirements of Australian Standard AS 1170.1-2002; ‘Structural design actions: Part 1 Permanent, imposed and other actions’. The combinations of dead and live loads are given by Part 0 of that standard.

For residential and commercial loading applications, and relevant spans please refer to the Table 1.

NOTES TO TABLE 1

1. In all cases the deflection limit of span/200 under 2.7 kN Serviceability Limit State loading has not been exceeded.

2. For residential applications, Table 3.1 of AS 1170.1 specifies a concentrated load of 1.8kN on a 350mm2 area, which is equivalent to a 21.1mm diameter round or 18.7mm square applicator. For commercial applications, the concentrated loads of 2.7kN and greater are applied over an area of 0.01m2, namely a 100mm square applicator.

3. The concentrated load capacity for the 350mm2 applicator (Residential Loads – Maximum Allowable Concentrated Load) is independent of the joist spacing because the failure mode will be punching shear.

4. Unless noted otherwise, the HardieDeck™ system will provide these load capacities even if the boards become fully saturated.

5.5 FASTENER DURABILITY

Fasteners must have the appropriate level of durability required for the intended project and be fully compatible with all other materials.

James Hardie recommends a minimum Class 3 fastener for general deck applications, stainless steel for swimming pool surrounds and decks within 1km of a coastal exposure or similar corrosive environment.

5.6 FALL AND DRAINAGEIt is recommended that decks have a fall of at least 1 in 100 away from the building to facilitate drainage. Do not create a fall by stacking the sheets.

When no fall is provided, the designer must assess and address issues including ponding, water ingress back into the house or other water-related issues. Flash decking to building to help manage moisture. It is recommended to provide a step of at least 50mm from the finished floor level to the building. Refer to relevant building regulations and codes which may specify a larger step down and other construction requirements.

TABLE 1: SPAN AND LOAD CAPACITYAS/NZS 1170.1: 2002 "STRUCTURAL DESIGN ACTIONS, PART 1: PERMANENT IMPOSED AND OTHER ACTIONS"

SPAN / JOIST SPACING

MAXIMUM ALLOWABLE UNIFORMLY DISTRIBUTED LOAD (KPA)

MAXIMUM ALLOWABLE CONCENTRATED LOAD (KN)

RESIDENTIAL LOADING

300mm – 500mm 2 kPa 1.8 kNCOMMERCIAL LOADING

300mm 10 kPa 3.78 kN450mm 10 kPa 2.9 kN


5.3 VENTILATION REQUIREMENTSHardieDeck™ boards are resistant to rotting and warping but excessive moisture under the deck can damage the framing members and affect the applied coating/finish. It is essential to ensure that the deck is designed with adequate cross-flow ventilation, with no dead air space. This will allow the subfloor space to dry and prevent moisture build-up. This is particularly important on decks that are exposed to high levels of moisture, e.g. pool decks, heavy rain and garden watering systems.

If installing a fascia around the deck that encloses the subfloor area, ensure that this fascia allows for sufficient cross-flow ventilation (see Section 6.6). The design must comply at a minimum with the requirements set in the Building Code of Australia (BCA) Volume 2 Part 3.4.1 and any local regulations.

5.4 GROUND CLEARANCEA minimum clearance of 150mm between the ground surface and the underside of the lowest horizontal member in the subfloor must be maintained, or such greater distance as required by local building codes.

5.5 SWIMMING POOLSWhen the HardieDeck™ system is being used in locations with exposure to high levels of water, salt, and/or chemicals such as chlorine, (e.g. surrounding swimming pools) particular attention should be paid to sealing, coating and ventilation requirements. It is recommended that appropriately qualified and experienced persons be consulted and engaged to ensure that ventilation and drainage is adequate and paintwork is completed to the necessary standard. This includes the installation of a 10mm flexible expansion joint around the perimeter of the pool and applying the sealers within 7 days of installation. Avoid spillage of any chemicals on the uncoated board surface. For further advice, contact James Hardie on 13 11 03. 5.6 COASTAL AREASIn coastal areas located within 1km of the shoreline or large expanses of salt water (e.g. Port Phillip Bay, Sydney Harbour east of the Spit and Harbour Bridges, Swan River wet of the Narrows Bridge), ensure to seal the deck within 7 days, use stainless steel or Class 4 fasteners and ensure to perform the adequate surface preparation (refer to HardieDeck™ Sealing Guide). For high exposure areas within 50m from breaking surf, HardieDeck™ is not suitable for use. 5.7 ALPINE AREAS (ZONE 8)HardieDeck™ is not suitable for climate zone 8 areas subject to freezing conditions. For more information contact James Hardie on 13 11 03. 5.8 BATTENED CONCRETE SLABSWhen HardieDeck™ system is being used on concrete slabs, you must ensure a minimum 100mm clearance from the slab to the underside of the decking boards. Additionally, you must provide adequate ventilation and drainage around the perimeter such that it does not retain moisture in the underfloor. For further recommendations, contact James Hardie on 13 11 03.

The designer must consider all design considerations outlined below prior to specifying the HardieDeck™ system.

All design and construction must comply with the appropriate requirements of the current applicable building codes and any other applicable regulations and standards current at the time of construction.

5.1 TERMITE MANAGEMENTHardieDeck™ boards are resistant to termite damage. Any timber used for framing must be termite-resistant, preservative-treated timber or have a termite barrier to protect the primary building elements (e.g. frame and decking, stairways and ramps to the extent not constructed using HardieDeck™ boards). Please refer to AS 3660.1 ‘Termite Management’ for more information and requirements.


5.2 FRAMINGFloor joists must be minimum 45mm wide. In order to achieve an acceptable finish, it is necessary for all framing to be straight. A suggested tolerance is 3-4mm over 3 meters in all directions. If installing in a Bushfire Prone Area refer to page 7.







5 DESIGN CONSIDERATIONS


5.9 SPAN CAPACITY & LOADINGThe Building Code of Australia (BCA) requires that floor structures be designed to meet the load requirements of Australian Standard AS 1170.1-2002; ‘Structural design actions: Part 1 Permanent, imposed and other actions’. The combinations of dead and live loads are given by Part 0 of that standard.


5 HARDIEDECKTM SYSTEM INSTALLATION AND SPECIFICATION GUIDE FEBRUARY 2016

5 DESIGN CONSIDERATIONSThe designer must consider all design considerations outlined below prior to specifying the HardieDeck™ system.

All design and construction must comply with the appropriate requirements of the current National Construction Code (NCC) and any other applicable regulations and standards current at the time of construction.

5.1 TERMITE MANAGEMENT

HardieDeck™ boards are resistant to termite damage. Any timber used for framing must be termite-resistant, preservative-treated timber or have a termite barrier to protect the primary building elements (e.g. frame and decking, stairways and ramps to the extent not constructed using HardieDeck™ boards). Please refer to AS 3660.1 for more information and requirements.


FIGURE 3 RECOMMENDED FALL

1 in 100 min. fall recommended

5.2 FRAMING

Floor joists must be minimum 45mm wide. In order to achieve an acceptable finish, it is necessary for all framing to be straight. A suggested tolerance is 3-4mm over 3 meters in all directions. If installing in a Bushfire Prone Area refer to page 6.



5.3 CONCRETE FOOTING

HardieDeck may be fixed over concrete to battens provided the concrete is in good condition. Battens must be attached to the concrete in order to keep the deck in place. There must be adequate fall to assist drainage and battens must run in the direction of that fall (i.e. battens must not retain water under the deck). The battens may be of either timber or steel, be deemed suitable and stable, provide a minimum of 45mm clearance off the concrete and be of the same specifications as listed in 5.2 Framing. The connection of the battens to the concrete must be designed by the relevant specialist and if waterproofing is required, the connection must be tested and warranted by the waterproofing manufacturer. Ensure that the deck has adequate cross-ventilation (i.e. do not box all sides).





5.4 SPAN CAPACITY & LOADING

The Building Code of Australia (BCA) requires that floor structures be designed to meet the load requirements of Australian Standard AS 1170.1-2002; ‘Structural design actions: Part 1 Permanent, imposed and other actions’. The combinations of dead and live loads are given by Part 0 of that standard.


NOTES TO TABLE 1

1. In all cases the deflection limit of span/200 under 2.7 kN Serviceability Limit State loading has not been exceeded.




5.5 FASTENER DURABILITY

Fasteners must have the appropriate level of durability required for the intended project and be fully compatible with all other materials.


5.6 FALL AND DRAINAGEIt is recommended that decks have a fall of at least 1 in 100 away from the building to facilitate drainage. Do not create a fall by stacking the sheets.

When no fall is provided, the designer must assess and address issues including ponding, water ingress back into the house or other water-related issues. Flash decking to building to help manage moisture. It is recommended to provide a step of at least 50mm from the finished floor level to the building. Refer to relevant building regulations and codes which may specify a larger step down and other construction requirements.

TABLE 1: SPAN AND LOAD CAPACITYAS/NZS 1170.1: 2002 "STRUCTURAL DESIGN ACTIONS, PART 1: PERMANENT IMPOSED AND OTHER ACTIONS"

SPAN / JOIST SPACING

MAXIMUM ALLOWABLE UNIFORMLY DISTRIBUTED LOAD (KPA)

MAXIMUM ALLOWABLE CONCENTRATED LOAD (KN)

RESIDENTIAL LOADING

300mm – 500mm 2 kPa 1.8 kNCOMMERCIAL LOADING

300mm 10 kPa 3.78 kN450mm 10 kPa 2.9 kN

NOTES TO TABLE 1 1. In all cases the deflection limit of span/200 under 2.6kN Serviceability

Limit State loading has not been exceeded.




5.10 FASTENER DURABILITYFasteners must have the appropriate level of durability required for the intended project and be fully compatible with all other materials.


5.11 WATER DRAINAGEThe designer must assess and design the deck with the appropriate drainage including but not limited to ponding water in large areas, water ingress to the house, and other drainage related issues. It is recommended that a min. step of 50mm from the finished floor level to the building and a gap is provided around the perimeter as per Figure 9. For decks with high exposure to the elements, effective methods to manage water drainage including 1:100 fall, incorporated drainage in between boards and larger perimeter gaps covered with perforated coverings. For more information and guidance on drainage, please consult James Hardie on 13 11 03. Ensure to refer to the relevant building regulations and codes which may specify larger step down, min. fall and other construction requirements.

5.12 SLIP RESISTANCEIt is the designer’s responsibility to determine the required slip resistance for the required application in accordance to the Building Code of Australia (BCA) and AS 4586 and SA HB 198:2014 - ‘Guide to the specification and testing of slip resistance of pedestrian surfaces’.

For decking boards installed in high slip areas e.g. swimming pools, it is recommended to use a paving paint with slip resistance aggregate. The slip resistance rating is dependant on the paving paint or sealer selected. Refer to the Frequently Asked Questions page available at HardieDeck.com.au.

HARDIEDECKTM SYSTEM INSTALLATION AND SPECIFICATION GUIDE FEBRUARY 2016 6

5.7 SLIP RESISTANCE

It is the designer's responsibility to determine the required slip resistance for the required application in accordance to the National Code of Construction (NCC) and AS 4586 and SA HB 198:2014 - 'Guide to the

For decking boards installed in high slip areas e.g. swimming pools, it is recommended to use a paving paint with slip resistance aggregate. The slip resistance rating is dependant on the paving paint or sealer selected. Refer to the Frequently asked questions page available at HardieDeck.com.au.

5.8 BALUSTRADE

and not to the HardieDeck™ system. All balustrades must conform to the requirements of the NCC.

5.9 BUSHFIRE PRONE AREAS

The HardieDeck™ system, (boards and accessories), are deemed non-combustible by the National Construction Code (NCC), and are

(CSIRO assessment report FCO - 3056).

the intent for non‐combustible materials presented in Clause C1.12 and may be used where non‐combustible materials are required, including

in BAL‐FZ zones.

Table 2 below outlines requirements for framing supports, balustrades and handrails. It is provided as a guide only based in the requirements outlined in AS3959-2009. Please consult the NCC or your local council for more information.

6 DESIGN AND DETAILING

6.1 LAYOUT

HardieDeck™ boards can be laid out in a variety of directions to create patterns and add design character to the building. Care is required to ensure that the span capacity of the boards is not exceeded. For example, when boards are laid at an angle other than 90O to the framing members, joists may need to be spaced closer than the maximum 500mm.

The patterns below are provided as a guide and are some examples of the designs that can be achieved with the HardieDeck™ system.

PARALLEL 90O - STANDARD HardieDeck™ boards have been designed to be installed perpendicular to the joist direction.

PARALLEL 45O When installing HardieDeck™ boards diagonally by up to 45O, the joist spacing must be reduced to 300mm as indicated below.

Custom designs may be achieved by alternating orientations such as CHEVRON, HERRINGBONE and CHEQUERBOARD. The 296mm wide HardieDeck™ Finishing Board is 100mm wider than the standard HardieDeck™ Board and Edging Board. It can add design variation. For design assistance call 13 83 53 or visit HardieDeck.com.au.

FIGURE 5 45O DECKING LAYOUT

FIGURE 4 STANDARD DECKING LAYOUT

Refer to Table 1 for

joist spacing

Refer to Table 1

TABLE 2 BUSHFIRE PRONE AREAS REQUIREMENTS FOR DECKS

DESIGN CRITERIA (AS 3959)

BUSHFIRE ATTACK LEVEL (BAL)

12.5 & 19 29 40Flame Zone (FZ)

Decking Boards HardieDeck™ system suitable

Framing and Supports

No additional requirements

Non-combustible (e.g. steel)

suitable resisting timber

Non-combustible (e.g. steel) or system compliant with AS

timber allowed)

Balustrade & Handrail

No additional requirements

Varies based on distance from glazed element or combustible material. <125mm, It must be non-combustible

>125mm , no additional requirements

5.13 BALUSTRADEThe balustrade upright supports must be fixed to the structural frame and not to the HardieDeck™ system. All balustrades must conform to the requirements of the BCA.

5.14 BUSHFIRE PRONE AREASThe HardieDeck™ system, (boards and accessories), are deemed non-combustible by the The Building Code of Australia (BCA), and are suitable for all Bushfire Attack Levels including Flame Zones as specified in AS3959-2009 “Construction of buildings in bushfire prone areas.” (CSIRO assessment report FCO - 2056).

Based on the AS/NZS 1530.3 test results in CSIRO Certificate of Test FNE11103 and the requirements specified in Clause C1.12 of the BCA, it is the opinion of this Division that “James Hardie Strip Decking” satisfies the intent for non-combustible materials presented in Clause C1.9 and may be used where non-combustible materials are required, including decking, stair treads and the trafficable surfaces of ramps and landings in BAL-FZ zones.

Table 2 below outlines requirements for framing supports, balustrades and handrails. It is provided as a guide only based in the requirements outlined in AS3959-2009. Please refer to the BCA or consult your local council for more information.


Overhang board 30mm

OPTION 1: SLIMLINE EDGE CAP WITH FASCIA BOARD

Overhang board 30mm

OPTION 2: FASCIA EDGE CAP WITH FASCIA BOARD

Overhang board 30mm

HardieDeck™ Edging Board face fixed at joist centres

15x15mm Aluminium drip mould (supplied by others)

10mm Class 3 (min.) needle point screw at 200mm centres

OPTION 3: EDGING BOARD OVERHANG

Custom designs may be achieved by alternating orientations such as CHEVRON, HERRINGBONE and CHEQUERBOARD. The 296mm wide HardieDeck™ Finishing Board is 100mm wider than the standard HardieDeck™ Board and Edging Board. It can add design variation. For design assistance call 13 11 03 or visit HardieDeck.com.au.

300mm

FIGURE 5 45˚ DECKING LAYOUT

6 DESIGN AND DETAILING

6.2 PERIMETER AND EDGES

FIGURE 6A FIRST BOARD INSTALLED WITH EDGE OPTION 1 (CAP)

FIGURE 6B EDGE OPTION 2 (CAP)

FIGURE 6C EDGE OPTION 3 (DRIP MOULD)

Refer toTable 1 for

joist spacing

FIGURE 4 STANDARD DECKING LAYOUT

PARALLEL 45˚ When installing HardieDeck™ boards diagonally by up to 45˚, the joist spacing must be reduced to 300mm as indicated below. This option is limited to residential applications.

6.1 LAYOUT HardieDeck™ boards can be laid out in a variety of directions to create patterns and add design character to the building. Care is required to ensure that the span capacity of the boards is not exceeded. For example, when boards are laid at an angle other than 90˚ to the framing members, joists may need to be spaced closer than the maximum 500mm.

The patterns below are provided as a guide and are some examples of the designs that can be achieved with the HardieDeck™ system.

PARALLEL 90˚ - STANDARD HardieDeck™ boards have been designed to be installed perpendicular to the joist direction.


Leave at least two rows between end joints in similar locations

OPTION 1: CONTINUOUS (STAGGERED)

Boards butted hard with no gap at a support (no accessory required).

HardieDeck™ board ends must be supported on each end abutting the Wingless Base Jointer

HardieDeck™ Wingless Base Jointer fixed every 300mm along the joist.

OPTION 2: SQUARE (PANELLED)

Slightly arris the board ends with 120 grit sandpaper to match the arris of the board sides.

HardieDeck™ Wingless Base Jointer fixed every 300mm along the joist.

40-50 mm edge clearance

Face fixed HardieDeck™ Finishing Board at 500mm centres

OPTION 3: BREAKER BOARD

A HardieDeck™ Finishing Board may be used to create a bolder look at the joints. It must be face fixed at a maximum of 500mm centres at each end with all edges fully supported.

Face fixed HardieDeck™ Finishing Board (optional)

Remove f lange on the base jointer facing the abutting deck boards with a circular saw or jig saw suitable for cutting metal.

OPTION 1: SQUARE CORNER JOINT


NOTE: This will require joists to be parallel to the building at the change of direction

OPTION 2: ALTERNATE SQUARE PARALLEL CORNER JOINT

NOTE: Board short ends must be fully supported.


Face Fixing required at corner

40-50mm edge clearance

OPTION 3: STAGGERED 45˚ CORNER JOINT

6.3 JOINTS 6.4 CORNERS Where the deck changes direction either a square joint, mitred joint or a staggered joint can be formed. All decking board joints must be fully supported by the framing joists or blocking. The options below illustratethe 296mm wide Finishing Board as an aesthetic option. This board hasno grooves for it to be secured by a base jointer, so it must be face fixedand adequately supported.

FIGURE 7A STAGGERED LAYOUT BUTT JOINTS

FIGURE 8A SQUARE CORNER JOINT

FIGURE 8B ALTERNATE SQUARE PARALLEL CORNER JOINT

FIGURE 8C STAGGERED 45˚ CORNER JOINT

FIGURE 7B DECKING BOARD SQUARED BUTT JOINTS

FIGURE 7C DECKING BOARD BREAK-A-BOARD BUTT JOINTS


10mm gap filled with James Hardie™ joint sealant

Face fixed decking screw required at 500mm centres, 40mm from the board edge

HardieDeck™ Edging Board

OPTION 1HardieDeck™ Fascia Edge Cap

OPTION 2HardieDeck™ Slimline Edge Cap

Face fixed decking screw required at 500mm centres, 40mm from the board edge

Gap must provide adequate ventilation for fully enclosed decks, please refer to 5.3 for more information

Refer to ground clearance design considerations for minimum clearance

If installing a fascia around the deck that encloses the subfloor area, ensure that this fascia allows for sufficient cross-flow ventilation. Several examples of how this may be achieved include: • face-fixing HardieDeck™ boards on the deck fascia with gaps between

the boards• cutting in and installing suitably sized vents • Installing forced air-flow systems for large decks

6.6 FASCIAS The HardieDeck™ system boards may be used vertically as fascias to the sides of the deck to create a clean finish as set out below. It may also be used in all bushfire areas; however, Flame Zone (Bal-FZ) requires additional detailing, refer to the table in Bushfire Prone Areas page 6.

6.5 ABUTMENTS Where the deck abuts the house, it may be necessary to narrow or “rip” the final board width. This is best done with a wet saw as detailed in the Tools page 4. The cut edge of the board adjacent to the house can be fastened to the joists.

Solid timber pole plate

50mm clearance

10mm clearance

Selected wall cladding

Corrosion resistant flashing

HardieDeck™ Slimline Edge Cap

Mitred corner Edge Cap. It is recommended to cap the corner with a PVC or rubber cap (supplied by others) for protection of sharp corners


OPTION 4: MITRED CORNER JOINT

NOTE: Board short ends must be fully supported at corner junction. See section 5 for guidance on joist layout. Not recommended for Edge Option 3, see Figure 6c.

FIGURE 8D MITRED CORNER JOINT

FIGURE 9 DECK AND BUILDING EDGE TREATMENT

FIGURE 10 EDGE CAPPING MITRED CORNER DETAIL

FIGURE 11 FASCIA CAPPING OPTIONS

FIGURE 12 BOTTOM FINISHING DETAIL AND CLEARANCE

6.7 PENETRATIONS Where the boards require cutting around railing posts and other penetrations, cut out the required area with a jig saw fitted with a Makita code B-60 jig saw blade or equivalent. All cut edges must be fully supported by framing.

6 DESIGN AND DETAILING (CONT.)


HardieDeck™ Boards need to be coated with an exterior trafficable paving paint or sealer within 60 days in accordance with coating manufacturers specifications.

7.1 SURFACE PREPARATIONPrior to applying any paints or sealers, the deck surface must be cleaned and allowed to dry. Dust and dirt on the surface will affect the adhesion of surface coatings, and may result in blistering and peeling. Follow the surface preparation instructions from the coating manufacturer.

NOTE: Acid etching, which is commonly used in the preparation of concrete surfaces, is not recommended on HardieDeck™ Boards as it can damage the board surface and result in a rough appearance.

For face fixed screws, cover the screw heads with two-part epoxy flush and sand smooth, or alternatively the screw heads may be left exposed.

7.2 SURFACE COATINGDo not install the Snap-In Top Strip until the coating is completed and dry.

The recommended brands have been tested to be compatible with the HardieDeck™ Boards. To see product specifications and recommendations for HardieDeck™ Boards from paint manufacturers visit HardieDeck.com.au/coatings.

If using alternative brands, contact the manufacturer to ensure that the product is compatible with HardieDeck™ Boards and is suitable for the application.

In general, best results are achieved with water-based paving paints with optional slip resistance additives.

Clear sealing options are available. Refer to HardieDeck™ system Clear Seal on HardieDeck.com.au for more information.

FIGURE 15 APPLY EXTERIOR TRAFFICABLE PAVING PAINT OR SEALER

Note: Ensure that the chamfered edges of the decking boards are also fully painted.

For recommended surface coatings visit HardieDeck.com.au/Coatings or call 13 83 53

7 FINISHING AND COATING

8 CARE INSTRUCTIONS

9 WARRANTY

To minimise wear and tear, and keep your deck looking good for years to come, follow these recommendations:

Cleaning and Maintenance

Cleaning will maintain the beauty of your HardieDeck™. The boards should be washed with a soft broom and pH-neutral detergent regularly. The frequency of cleaning is dependent on the geographical location and exposure of the building:

• at least every 6-12 months in rural or normal urban environments;

• at least every 1-3 months in areas subject to higher corrosion such as coastal environments and swimming pool surrounds;

• at least once a month in particularly harsh environments such as beachfronts, severe marine environments or areas of high industrial pollution; or

• as recommended by the manufacturer of the third party coating system applied, if the recommended frequency is higher than that set out above.

In particularly dirty environments dry sweep regularly to avoid scratching from dirt and debris.

Any damaged to HardieDeck™ system components must be fixed or replaced immediately.

Re-coating

When re-painting the deck:

• The deck surface must be cleaned with accordance to the paint manufacturer’s specification.

• Apply masking tape over the snap-in cover strips. As paints may not be compatible with the powder coating on the strips, it is not recommended they be painted over.

• Alternately, the snap-in cover strips may be removed and replaced with new cover strips after re-painting. The snap-in cover strips may be purchased separately.

Furniture

We recommend protective mats or furniture pads are used to protect against contact from sources such as furniture legs, BBQ’s or planter stands.

Minimise dragging furniture & heavy objects along the deck. Consider adding rubber stops to furniture legs, as you would do to reduce the likelihood of scratching a wooden deck.

CARE FOR YOUR DECK

The HardieDeckTM system supplied by James Hardie is warranted for a period of 10 years.

Please refer to the terms and conditions stated in the warranty document available at HardieDeck.com.au.

The decking boards are not covered by the James Hardie's product warranty if used without HardieDeck™ Double Winged Base Jointer and HardieDeck™ Snap-In Top Strip.

This product is not warranted for use outside of its intended application.

© Copyright 2015 James Hardie Australia Pty Ltd.

ABN 12 084 635 558. ™ and ® denotes a trademark or registered mark owned by James Hardie Technology Limited


HardieDeck™ Finishing Board

Tread

Riser

HardieDeck™ Board (may require cutting if rise is less than 175mm

Note: HardieDeck™ Finishing Board and Decking Board must be face fixed with a minimum of two fasteners per support (edges and intermediates) with an edge clearance of 20mm.

Stair Nose/Edge (supplied by others)

HardieDeck™

Boards

Edge support, min. 35mm wide

Cut Stringer for intermediate and edge supports. Min. 35mm wide

Max. Support Span 450mm

Solid Stringer to conceal boards and provide edge protection

Corrosion resistant bracket

Tread: 285mm to suit HardieDeck™ Finishing Board.

Riser: Nominal: 196mm to suit HardieDeck™ Board (134-196mm)

NOTE: The above riser and tread dimensions consider board thickness and dimensions. The resulting riser and going must be within 115-190mm and 240-355 mm, respectively.


HardieDeck™ Boards need to be sealed with a recommended exterior trafficable finish within 60 days in accordance with coating manufacturers’ specifications. For installations around pools and within 1km of coastal areas, apply the coating within 7 days.

A variety of clear and tinted finishes are available for HardieDeck from selected James Hardie recommended and tested sealers. For recommendations, suitability and application instructions for your deck, refer to the HardieDeck™ Sealing Guide.

Do not install the Snap-In Top Strip until the coating is completed and dry.


HardieDeck™ Boards need to be coated with an exterior trafficable paving paint or sealer within 60 days in accordance with coating manufacturers specifications.

7.1 SURFACE PREPARATIONPrior to applying any paints or sealers, the deck surface must be cleaned and allowed to dry. Dust and dirt on the surface will affect the adhesion of surface coatings, and may result in blistering and peeling. Follow the surface preparation instructions from the coating manufacturer.

NOTE: Acid etching, which is commonly used in the preparation of concrete surfaces, is not recommended on HardieDeck™ Boards as it can damage the board surface and result in a rough appearance.

For face fixed screws, cover the screw heads with two-part epoxy flush and sand smooth, or alternatively the screw heads may be left exposed.

7.2 SURFACE COATINGDo not install the Snap-In Top Strip until the coating is completed and dry.

The recommended brands have been tested to be compatible with the HardieDeck™ Boards. To see product specifications and recommendations for HardieDeck™ Boards from paint manufacturers visit HardieDeck.com.au/coatings.

If using alternative brands, contact the manufacturer to ensure that the product is compatible with HardieDeck™ Boards and is suitable for the application.

In general, best results are achieved with water-based paving paints with optional slip resistance additives.

Clear sealing options are available. Refer to HardieDeck™ system Clear Seal on HardieDeck.com.au for more information.

FIGURE 15 APPLY EXTERIOR TRAFFICABLE PAVING PAINT OR SEALER


For recommended surface coatings visit HardieDeck.com.au/Coatings or call 13 83 53

7 FINISHING AND COATING

8 CARE INSTRUCTIONS

9 WARRANTY

To minimise wear and tear, and keep your deck looking good for years to come, follow these recommendations:


Cleaning will maintain the beauty of your HardieDeck™. The boards should be washed with a soft broom and pH-neutral detergent regularly. The frequency of cleaning is dependent on the geographical location and exposure of the building:





In particularly dirty environments dry sweep regularly to avoid scratching from dirt and debris.

Any damaged to HardieDeck™ system components must be fixed or replaced immediately.

Re-coating


• The deck surface must be cleaned with accordance to the paint manufacturer’s specification.


• Alternately, the snap-in cover strips may be removed and replaced with new cover strips after re-painting. The snap-in cover strips may be purchased separately.

Furniture

We recommend protective mats or furniture pads are used to protect against contact from sources such as furniture legs, BBQ’s or planter stands.

Minimise dragging furniture & heavy objects along the deck. Consider adding rubber stops to furniture legs, as you would do to reduce the likelihood of scratching a wooden deck.

CARE FOR YOUR DECK

The HardieDeckTM system supplied by James Hardie is warranted for a period of 10 years.


The decking boards are not covered by the James Hardie's product warranty if used without HardieDeck™ Double Winged Base Jointer and HardieDeck™ Snap-In Top Strip.

This product is not warranted for use outside of its intended application.

© Copyright 2015 James Hardie Australia Pty Ltd.

ABN 12 084 635 558. ™ and ® denotes a trademark or registered mark owned by James Hardie Technology Limited

FIGURE 13 DECK STAIR FRAMING

FIGURE 14 DECK STAIR - TREAD AND RISERS

FIGURE 15 APPLY EXTERIOR TRAFFICABLE PAVING SEALER

6.8 STAIRS AND TREADS HardieDeck™ boards may be used as stair treads and stringers to match deck design. The designer must ensure that the dimensions and layout comply with the relevant standard, code and regulations. The supports must be reduced to 450mm centres. It is recommended not to enclose the sides of the stairs for adequate ventilation. The below figures are given as a guide and based on AS 1657-2013 Fixed platforms, walkways, stairways and ladders - Design, construction and installation.

7 SEALING

CARE FOR YOUR DECKTo minimise wear and tear, and keep your deck looking good for years to come, follow these recommendations:


Regular cleaning will maintain the finish of your HardieDeck™ longer. The boards should be washed with a soft broom and pH-neutral detergent regularly. The frequency of cleaning is dependent on the geographical location and exposure of the building:





• for decks installed in coastal areas and around saltwater pools, it is recommended that the deck be hosed down with fresh water frequently to remove salt deposits.

In particularly dirty environments dry sweep regularly to avoid scratching from dirt and debris. Stains and contamination can permanently mark or stain the coated surface. Follow the coating manufacturer’s recommendations and ensure these are cleaned off.

Any damage to HardieDeck™ system components must be fixed or replaced immediately.

Re-sealing


• The deck surface must be cleaned with accordance to the sealer manufacturer’s specification and the guidelines set out in the HardieDeck™ Sealing Guide.


• Alternately, the snap-in cover strips may be removed and replaced.

Surface Protection

We recommend protective mats or furniture pads are used to protect against contact from sources such as furniture legs, BBQ’s or planter stands. Avoid using mats that can trap water between the mat and the deck surface, e.g. solid rubber welcome mats.

Minimise dragging furniture & heavy objects along the deck. Consider adding rubber stops to furniture legs, as you would do to reduce the likelihood of scratching a timber deck. If renovations or building work continues after the installation of the HardieDeck™, protect the deck surface with a suitable covering to prevent staining, in-ground dirt or mud and surface damage from tools, equipment and heavy foot traffic.

Material

The basic composition is Portland cement, ground sand, cellulose fibre and water. James Hardie building products are manufactured to Australian/New Zealand Standard AS/NZS 2908.2 ‘Cellulose-cement products-Flat sheet.’

HardieDeck™ boards are classified Type A, Category 3 in accordance with AS/NZS 2908.2.

Durability

Resistance to moisture/rotting HardieDeck™ boards have demonstrated resistance to permanent moisture induced deterioration (rotting) by passing the following tests in accordance with AS/NZS2908.2:

• Water permeability (Clause 8.2.2)

• Warm Water (Clause 8.2.4)

• Heat rain (Clause 6.5)

• Soak Dry (Clause 8.2.5)

Resistance to fire

HardieDeck™ system is suitable where non-combustible materials are required in accordance with C1.9 of the Building Code of Australia. James Hardie building products have been tested by CSIRO in accordance with AS/NZS 3837 and are classified as conforming to Group 1 material (highest and best result possible), with an average specific extinction area far lower than the permissible 250m2/kg, as referenced in Specification C1.10a of the BCA.

Resistance to termite attack

Based on testing completed by CSIRO Division of Forest Products and Ensis Australia James Hardie building products have demonstrated resistance to termite attack.

The HardieDeck™ system supplied by James Hardie is warranted for a period of 10 years.


The decking boards are not covered by the James Hardies product warranty when used without HardieDeck™ Double Winged Base Jointer and HardieDeck™ Snap-In Top Strip when installed horizontally.

NOTE Boards are still warranted when installed in a vertical deck fascia application without the fixing system. This product is not warranted for use outside of its intended application.


8 CARE INSTRUCTIONS

9 PRODUCT INFORMATION

10 WARRANTY


NOTES

For information and advice call 13 11 03 | jameshardie.com.au

© 2018 James Hardie Australia Pty Ltd ABN 12 084 635 558 ™ and ® denote a trademark or registered mark owned by James Hardie Technology Limited.

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