4331H
JAMES HARDIE FIBRE CEMENT DECKING
1.
GENERAL
This section relates to the supply and installation of James Hardie
HardiePanel™Compressed Sheet and Secura™ Exterior Flooring substrate for:
- ceramic tile finishes on decks
- over timber or lightweight steel floor joists.
1.1
RELATED WORK
Refer to tiling section for tiling.
Refer to waterproofing section for waterproofing.
Documents
1.2
DOCUMENTS
Refer to the general section 1233 REFERENCED DOCUMENTS. The following
documents are specifically referred to in this section:
NZBC E2/AS1
External moisture
NZBC E3/AS1
Internal moisture
AS/NZS 2908.2
Cellulose-cement products - Flat sheet
NZS 3602
Timber and wood-based products for use in buildings
1.3
MANUFACTURER/SUPPLIER DOCUMENTS
Manufacturer's and supplier's documents relating to this part of the work:
Secura™ Exterior Flooring Installation Manual
James Hardie Flooring Installation Manual
Manufacturer/supplier contact details
Company:
James Hardie New Zealand
Web:
www.jameshardie.co.nz
Email:
info@jameshardie.co.nz
Telephone:
Ask James Hardie™ on 0800 808 868
Warranties
1.4
WARRANTY - MANUFACTURER/SUPPLIER
Provide a material manufacturer/supplier warranty:
15 years:
For James Hardie™ ~.
(refer to James Hardie™ product warranty)
15 year:
For accessories supplied by James Hardie (refer to James Hardie™
product warranty)
From:
Date of purchase
- Provide this warranty on the manufacturer's standard form.
Refer to the general section 1237 WARRANTIES for additional requirements.
Requirements
1.5
NO SUBSTITUTIONS
Substitutions are not permitted to any specified James Hardie™ system, or associated
components and products.
1.6
COMPLIANCE
Fibre cement sheets to AS/NZS 2908.2.
2.
PRODUCTS
Materials
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4331H JAMES HARDIE FIBRE CEMENT DECKING Page 1
2.1
HARDIEPANEL COMPRESSED FLOORING
James Hardie HardiePanel™ Compressed Sheet, high density autoclaved sheet, 18mm
thick manufactured from treated cellulose fibre, Portland cement, sand and water to
AS/NZS 2908.2.
2.2
SECURA EXTERIOR FLOORING
Secura™ Exterior Flooring, lightweight proprietary SCYON technology, 2700mm x
600mm x 19mm thick heavy-duty sheet, manufactured from treated cellulose fibre,
Portland cement, sand and water to AS/NZS 2908.2. Tongue and groove jointing system
and pre-sealed with a water resistant sealer.
Components - HardiePanel™ Compressed Sheet
2.3
SCREWS FOR TIMBER
Stainless steel 316 50mm x 10g for timber joists.
2.4
SCREWS FOR STEEL
Class 3 or 4 coated countersunk 40-50mm x 8-10g steel screws for steel frame.
Components - Secura™ Exterior Flooring
2.5
NAILS FOR TIMBER
50 x 2.87mm RounDrive nails.
2.6
SCREWS FOR TIMBER
10g x 40mm wood thread self embedding screws.
2.7
SCREWS FOR STEEL
8-10g x 40-45mm wing tek minimum Class 3 or 4 coating.
Accessories - HardiePanel™ Compressed Sheet
2.8
ALUMINIUM T SOCKET
Extruded aluminium T socket supplied by James Hardie.
2.9
ADHESIVE
Sika Super Grip adhesive. Refer to James Hardie technical specifications.
2.10
SEALANT
Flexible sealant with compatible PEF rod and primer. Refer to James Hardie Flooring
Installation Manual.
2.11
BACKING STRIP
Inseal 3259, 50mm x 1.5mm strip. Refer to James Hardie Flooring Installation Manual.
2.12
ALUMINIUM DRIP MOULD
Extruded aluminium angle to form drip edge, refer to details.
Accessories Secura™ Exterior Flooring
2.13
ALUMINIUM DRIP MOULD
Extruded aluminium angle to form drip edge, refer to details.
Accessories - not supplied by James Hardie
2.14
BACKING ROD
PEF backing rod to be used with sealant in control joints.
2.15
SEALANT
James Hardie approved sealant used in v joint and fastener heads for tiled applications.
Ensure compatibility with waterproofing membrane system selected.
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4331H JAMES HARDIE FIBRE CEMENT DECKING Page 2
2.16
WATERPROOFING MEMBRANE
James Hardie approved waterproofing membrane over the Secura™ Exterior Flooring
over habitable areas. Refer to waterproofing section.
2.17
ADHESIVE
Adhesive used over joists prior to installation of Secura™ Exterior Flooring. Refer to
adhesive manufacturers technical data and James Hardie technical specifications. Refer
to adhesive section.
3.
EXECUTION
Conditions general
3.1
MOISTURE CONTENT
Maximum moisture content of timber framing not to exceed the requirements of NZS
3602.
3.2
STORAGE ON SITE
Take delivery of products dry and undamaged on pallets, and keep on pallet. Protect
edges and corners from damage and keep it covered to keep dry until fixed.
3.3
HANDLING
Avoid damage to tongue and groove edges and contact with potentially damaging objects
while handling. Carry sheets vertically. Do not drag sheets across each other, or across
other materials. Protect edges, corners and surface finish from damage.
3.4
SUBSTRATE
Do not commence work until the substrate is of the standard required by the relevant
manufacturer's technical literature for the specified finish; plumb, level and in true
alignment. Maximum moisture content of timber framing to NZS 3602.
Application - HardiePanel™ Compressed Sheet
3.5
SUPPORT FRAMING
Ensure support framing is completed to James Hardie requirements.
3.6
SUPPORT EDGES AND JOINTS
Fully support edges and joints of sheets.
3.7
FIXINGS
Minimum 50mm one direction only from a corner, 12mm from the edge, 300mm centres
along edges and on intermediate supports. Leave heads flush with surface for tiling, or
countersink and epoxy filled flush for other surface finishes.
3.8
FIXING SHEETS
Fix HardiePanel™ Compressed Sheets to James Hardie requirements. Lay sheets in a
non-staggered layout with all joints lined up, long edge of sheet at right-angles to support
and with sheets in square, true alignment and plane.
3.9
SEALANT JOINTS
Form sealant joints at every sheet joint to James Hardie technical specifications. Allow
6mm to 10mm gap between sheets, arrange set out so that gap is a consistent width.
Apply Inseal Strip to framing on joint line and pre-prime sheet edges before fixing sheets.
Apply silicone sealant over backing rod.
3.10
RIGID JOINTS
Form rigid joints to James Hardie technical specifications. Apply Aluminium T Socket to
framing on joint line and apply adhesive to socket and sheet edges before fixing sheets.
Refer to Installation Manual for maximum number of sheets to be rigid bonded.
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4331H JAMES HARDIE FIBRE CEMENT DECKING Page 3
3.11
CONTROL JOINTS WITH RIGID JOINTS
Form control joints to form a maximum of 3600mm x 2400mm bay size or where existing
structural joints are located. Position joints symmetrical. Form control joints to James
Hardie technical specifications.
3.12
DRIP EDGE
Form a drip edge as detailed.
Application - Secura™ Exterior Flooring
3.13
SUPPORT FRAMING
Ensure support framing is completed to James Hardie requirements.
3.14
SUPPORT EDGES AND JOINTS
Fully support sheet edges other than tongue and groove joints.
3.15
FIXINGS
Apply 6mm continuous bead of construction adhesive to joists before fixing with nails or
screws. Fixings to be minimum 50mm from a corner, 12mm from the edge, 200mm
centres along edges and on intermediate supports. Leave heads flush.
3.16
FIXING SHEETS
Fix Secura™ Exterior Flooring to Secura™ Exterior Flooring Installation Manual
requirements. Lay sheets in a non-staggered layout with all joints lined up, long edge of
sheet at right-angles to support and with sheets in square, true alignment and plane.
Always lay the sheets across the floor joists.
3.17
TONGUE AND GROOVE JOINTS
Form tongue and groove joints to Secura™ Exterior Flooring Installation Manual. Apply
sealant compatible with waterproofing over all sheet joints and fastener heads to form a
continuous seal.
3.18
WATERPROOFING MEMBRANE
Ensure all sheet fixing is completed to James Hardie installation requirements before the
primer and solvent free waterproofing membrane is applied. Refer to Secura™ Exterior
Flooring Installation Manual. Refer to waterproofing section in Secura™ Exterior
Flooring Installation Manual for waterproofing installation and manufacturer's
requirements.
3.19
CONTROL JOINTS
Form control joints where deck dimensions exceed 2.7m x 4.5m and where existing
structural joints are located. Position joints symmetrical. Form control joints to Secura™
Exterior Flooring Installation Manual.
3.20
DRIP EDGE
Form a drip edge as detailed.
Completion
3.21
REPLACE
Replace damaged or marked elements.
3.22
CLEAN
Clean adjoining surfaces and fittings of spots, marks, dust and droppings.
3.23
LEAVE
Leave work to the standard required by following procedures.
3.24
REMOVE
Remove debris, unused materials and components from the site.
4.
SELECTIONS
For further details on selections go to www.jameshardie.co.nz
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4331H JAMES HARDIE FIBRE CEMENT DECKING Page 4
Substitutions are not permitted to the following, unless stated otherwise.
Materials
4.1
HARDIEPANEL™ COMPRESSED SHEET DECKING
Location:
~
Brand:
James Hardie
Type:
HardiePanel™ Compressed Sheet
Thickness:
18mm
Jointing method: ~
Screws:
Stainless steel 316 50mm x 10g for timber joists
4.2
SECURA™ EXTERIOR FLOORING
Location:
~
Brand:
James Hardie
Type:
Secura™ Exterior Flooring
Thickness:
19mm
Fixings:
~
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4331H JAMES HARDIE FIBRE CEMENT DECKING Page 5