hardieflex sheet tech 0562732001404956757
DESCRIPTION
hardieflex sheet tech 0562732001404956757TRANSCRIPT
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OCTOBER 2013 | NEW ZEALAND
TechnicalSpecification
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5 FIXING HARDIEFLEX SHEET 65.1 General 6
5.2 FastenerDurability 6
5.3 Fastenersizeandlayout 6
5.4 GunNailing 7
5.5 Sheetlayout 7
6 JOINTING 76.1 General 7
6.2 VerticalJoint 7
6.3 InternalCornerandExternalCorner 7
6.4 HorizontalJoint 7
7 FINISHING 77.1 Preparation 7
7.2 Sealants 7
7.3 Coating 7
8 STORAGE AND HANDLING 7
9 MAINTENANCE 8
10 PRODUCT INFORMATION 810.1 ManufacturingandClassification 8
10.2 Productmass 8
10.3 Sheetsizes 8
10.4 Durability 8
11 SAFE WORKING PRACTICES 9
12 ACCESSORIES 11
13 DETAILS 13
PRODUCT WARRANTY 39
1 APPLICATION AND SCOPE 31.1 Application 3
1.2 Scope 3
1.3 Setails 3
1.4 SpecificDesign 3
2 DESIGN 32.1 Compliance 3
2.2 Responsibility 3
2.3 SiteandFoundation 3
2.4 GroundClearances 3
2.5 MoistureManagement 4
2.6 Structure 4
2.7 WindLoading 4
2.8 StructuralBracing 4
2.9 FireRatedWalls 4
2.10 EnergyEfficiency 4
3 FRAMING 43.1 General 5
3.2 Dimensions 5
3.3 TimberGrade 5
3.4 Durability 5
3.5 FrameConstruction 5
3.6 Tolerances 5
3.7 Curvedwalls 5
4 PREPARATION 54.1 Buildingunderlay/HomeRABPrecladlining 5
4.2 RigidAirBarrier 5
4.3 VentStrip 5
4.4 CavityBattens 5
4.5 Flashings 6
Contents
WE VALUE YOUR FEEDBACKTocontinuewiththedevelopmentofourproductsandsystems,wevalueyourinput.Pleasesendanysuggestions,includingyourname,contactdetails,andrelevantsketchesto:
Ask James Hardie [email protected]
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James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 3
1 Application and scope
1.1 APPLICATIONHardieFlexSheetismanufacturedinNewZealandbyJamesHardiefromfibrecementwhichisacompositionofPortlandcement,groundsand,cellulosefibreandwater.HardieFlexSheetisapaneledlightweightwallcladdingsolutionforresidentialandlightcommercialbuildings.
HardieFlexSheetisidealformanygeneralbuildingpurposessuchaswallcladding,widesoffits,porchesandgableendsetc.
HardieFlexSheetisanaturalunsandedsheetandissuitableforapaintfinish.Avarietyofjointingmethodscanbeusedtoachievethedesiredlook.
If you are a specifierOrotherresponsiblepartyforaprojectensurethattheinformationinthisdocumentisappropriatefortheapplicationyouareplanningandthatyouundertakespecificdesignanddetailingforareaswhichfalloutsidethescopeofthesespecifications.
If you are an installer Ensurethatyoufollowthedesign,moisturemanagementandassociateddetailsandmaterialselectionprovidedbythedesigner.Allthedetailsprovidedinthisdocumentmustbereadinconjunctionwiththespecifiersspecification.
Make sure your information is up to dateWhenspecifyingorinstallingJamesHardieproducts,ensureyouhavethecurrentmanual.Ifyourenotsureyoudo,oryouneedmoreinformation,visitwww.jameshardie.co.nzorAskJamesHardieon0800808868.
1.2 SCOPEThescopeofthisspecificationisfortheuseofHardieFlexSheetlimitedtobuildingswhichfallwithinthescopelimitationsofNewZealandBuildingCode(NZBC)AcceptableSolutionE2/AS1paragraph1.1.ThismanualcoverstheuseofHardieFlexSheetforeitherconstructionmethodsi.e.directfixedorcavity,usedinexternalwallsoftimberframedbuildings.PleaserefertoE2/AS1forfurtherinformationregardingtheselectionofconstructionmethodsforcladdings.
Thisdocumentisintendedforusebyarchitects,designersandspecifierswhomaybeinvolvedwiththespecificationofHardieFlexSheet.
1.3 DETAILSVariousHardieFlexSheetdetailsareprovidedintheDetailssectionofthisdocument.ThisspecificationanddetailsinCADfilearealsoavailabletodownloadfromourwebsiteatwww.jameshardie.co.nz.
1.4 SPECIFIC DESIGNForuseofHardieFlexSheetoutsidethescopeofthisdocument,thearchitect,designerorengineermustundertakespecificdesign.Foradviceondesignsoutsidethescopeofthisspecification,AskJamesHardieon0800808868.
2 Design
2.1 COMPLIANCEHardieFlexSheetcomplieswithsection9.7.2ofE2/AS1.InformationcontainedinthisdocumentisalignedwiththerequirementsofNZBCAcceptableSolutionE2/AS1.
2.2 RESPONSIBILITYThespecifierorotherpartyresponsiblefortheprojectmustrunthroughariskmatrixanalysistodeterminewhichconstructionmethodistobeused.Thedesignermustalsoensurethatthefigurespublishedinthisspecificationareappropriatefortheintendedapplicationandthatadditionaldetailingisperformedforspecificdesignoranyareasthatfalloutsidethescopeofthisspecification.ThedesignersshouldensurethattheintentoftheirdesignmeetstherequirementsoftheNZBC.
Alldimensionsshownareinmillimetersunlessnotedotherwise.AllNewZealandStandardsreferenceinthismanualarecurrenteditionandmustbecompliedwith.
JamesHardieconductsstringentqualitycheckstoensurethatanyproductmanufacturedfallswithinourqualityspectrum.Itistheresponsibilityofthebuildertoensurethattheproductmeetsaestheticrequirementsbeforeinstallation.JamesHardiewillnotberesponsibleforrectifyingobviousaestheticsurfacevariationsfollowinginstallation.
2.3 SITE AND FOUNDATIONThesiteonwhichthebuildingissituatedmustcomplywithNZBCAcceptableSolutionE1/AS1SurfaceWater.FoundationsdesignmustcomplywiththerequirementsofNZS3604TimberFramedBuildingsorbeasperspecificengineeringdesign.ThegradeofadjacentfinishedgroundmustslopeawayfromthebuildingtoavoidanypossibilityofwateraccumulationinaccordancewithNZBCrequirements.
2.4 GROUND CLEARANCESTheclearancebetweenthebottomedgeofcladdingandpaved/unpavedgroundmustcomplywithsection9.1.3ofE2/AS1.Thefinishedfloorlevelmustalsocomplywiththeserequirements.Theseclearancesmustbemaintainedthroughoutthelifeofthebuilding.
HardieFlexSheetsmustoverhangthebottomplateonaconcreteslabbyaminimumof50mmasrequiredbyNZS3604.
HardieFlexSheetsmusthaveaminimumclearanceof100mmfrompavedgroundand175mmfromunpavedground.
Ontheroofsanddeckstheminimumclearancemustbe50mm.
Donotinstallexternalcladdingsuchthatitmayremainincontactwithwaterorground.RefertoFigures3and22.
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4 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
2.5 MOISTURE MANAGEMENTItistheresponsibilityofthespecifiertoidentifymoisturerelatedrisksassociatedwithanyparticularbuildingdesign.Wallconstructiondesignmusteffectivelymanagemoisture,consideringboththeinteriorandexteriorenvironmentsofthebuilding,particularlyinbuildingsthathaveahigherriskofwinddrivenrainpenetrationorthatareartificiallyheatedorcooled.
WallsshallincludethoseprovisionsasrequiredbytheNZBCAcceptableSolutionE2/AS1ExternalMoisture.Inadditionallwallopenings,penetrations,junctions,connections,windowsills,headsandjambsmustincorporateappropriateflashingsforwaterproofing.Theothermaterials,componentsandinstallationmethodsusedtomanagemoistureinexternalwalls,mustcomplywiththerequirementsofrelevantstandardsandtheNZBC.ForfurtherinformationondesigningforweathertightnessrefertoBRANZLtdandtheDepartmentofBuildingandHousingupdatesonthefollowingwebsitesrespectively,www.branz.co.nzandwww.dbh.govt.nz.
2.6 STRUCTURETimber-framedbuildingsmustbedesignedinaccordancewithNZS3604(TimberFramedBuildings).Whentheframingisprovidedasperthespecificengineeringdesign,theframingstiffnessmustbeequivalenttoormorethanthestiffnessrequirementsofNZS3604.
2.7 WIND LOADINGHardieFlexSheetcladdingaresuitableforuseinallNewZealandwindzonesuptoandincludingEHasdefinedinNZS3604.Aspecificdesignisrequiredforallsituationswherethebuildingsfallinaspecificengineeringdesign(SED)windzone.
2.8 STRUCTURAL BRACINGHardieFlexSheetcanbeusedtoachievestructuralbracingrequiredfortimberframedbuildingsdesignedandconstructedinaccordancewithNZS3604.TheHardieFlexSheetmustbeinstalledasperspecificbracingsystemdetailsthatareavailableseparately.HardieFlexSheetbracingsystemshavebeenindependentlytestedandassessedbyBRANZandaresuitableforbothconstructionmethodsi.e.directfixandcavity.RefertoJamesHardieBracingDesignManualfordetails.
2.9 FIRE RATED WALLSHardieFlexSheetcladwallsusingdirectfixorcavityconstructionmethodcanachievefireratingsupto60/60/60whenthewallsareconstructedinaccordancewiththisliteratureandincludethefireratedsystemrequirementsasspecifiedinJamesHardieFireandAcousticDesignManual.RefertoFireandAcousticDesignManualforfurtherinformationaboutfireratedsystems.
2.10 ENERGY EFFICIENCYExternalwallsconstructedusingHardieFlexSheet,bulkinsulation,wheretheareaofglazingis30%orlessofthetotalwallareaandconstructedasperthistechnicalspecificationcomplieswiththerequirementsforwallsinNZBCAcceptableSolutionH1/AS1(NZBCClauseH1EnergyEfficiency),ReplacementTable1.Tomeetthermalinsulationrequirementsfortheconstruction,thebulkinsulationasspecifiedinTable1mustbeused.ThisinsulationmaybesubstitutedwithinsulationshavinghigherR-values.Thethermalinsulationofawallgetsaffectedwhenthedepthofthetimberframingisincreasedordecreased.ThecalculationusedinTable1isbasedonatimberframingsize90x45mmandusinganinternalliningmaterialsuchasJamesHardieVillaboardLiningora10mmplasterboard.
Table1Insulation capability
Climate Zone
Construction RValue Requirement
Minimum RValue of Insulation Required
1and2 1.9m2C/W #R2.0
3 2.0m2C/W #R2.2
TotalconstructionR-Valuedependsontheinsulationmaterialusedandtheframingratio.TheinsulationmaterialR-Valuesspecifiedinthistableareforstudsspacedat600mmc/candnogsspacedat800mmc/c.#ToachievehigherR-ValuesofconstructionthewallinsulationmaterialmustbereplacedwithaninsulationmaterialhavinghigherR-Valuestosuittherequirements.ForfurtherguidanceoninsulationrequirementrefertocurrenteditionofHouseInsulationGuidepublishedbyBRANZ.
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4 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 5
3 Framing
3.6 TOLERANCESInordertoachieveanacceptablewallfinish,itisimperativethatframingisstraightandtrue.
FramingtolerancesmustcomplywiththerequirementsofNZS3604.Allframingshallbemadeflush.
3.7 CURVED WALLSHardieFlexSheetcanbeusedinacurvedapplication.RefertoJamesHardietechnicalsupportforfurtherinformation.
4 Preparation4.1 BUILDING UNDERLAY/HOMERAB
PRECLAD LININGBuildingunderlayorHomeRABPreCladLiningmustbeprovidedaspertherequirementsofNZBCAcceptableSolutionE2/AS1ExternalMoistureandNZS3604.ThebuildingunderlaymustcomplywithTable23ofE2/AS1andAS/NZS4200.1.ThebuildingunderlaymustbefixedinaccordancewithE2/AS1,NZS3604andAS/NZS4200.2PliableBuildingMembranesandUnderlayInstallationstandardandtheunderlaymanufacturersrecommendations.
Wallswhicharenotlinedontheinsidefacee.g.garagewallsorgableendsmustincludearigidsheathingoranairbarrierbehindthecladdingwhichcomplieswiththerequirementsofNZBCAcceptableSolutionE2/AS1Table23.HomeRABPreCladLiningissuitableforuseintheseapplications.ItmustbeinstalledinaccordancewithJamesHardieRigidAirBarriersInstallationManual.
4.2 RIGID AIR BARRIERForEHwindzonesRABBoardmustbeusedinlieuofbuildingunderlays.RefertoJamesHardieRigidAirBarriersInstallationManualforinformationregardinginstallation.
4.3 VENT STRIPTheJamesHardieuPVCcavityventstripmustbeinstalledatthebottomofallwallsconstructedusingthedrainedandventilatedcavityconstructionmethod.Itisimportantthattheopeningsintheventstriparekeptclearandunobstructedtoallowfreedrainageandventilationofcavities.JamesHardieuPVCventstriphasanopeningareaof1000mm2/mlength.
4.4 CAVITY BATTENSBuildingswithariskscoreof7-20calculatedinaccordancewithNZBCAcceptableSolutionE2/AS1Table3,requireHardieFlexSheettobeinstalledonacavity.
Thecavitybattensprovideairspacebetweentheframeandthesheetandareconsideredapackeronlyinthisspecification.
3.1 GENERALThisHardieFlexSheettechnicalspecificationisonlysuitablefortimber-framedbuildings.Otherframingmaterialsoutsidethescopeofthisspecification.
3.2 DIMENSIONSA45mm(nominal)minimumstudwidthisrequiredatallsheetedges.Elsewherea35mmwidestudmaybeused.
3.3 TIMBER GRADEMinimumtimbergraderequirementsareNo.1FraminggradeasperNZS3631NewZealandTimberGradingRulesorequivalent.
3.4 DURABILITYTheexternalframingmustbetreatedtoaminimumH1.2treatment.RefertoNZBCAcceptableSolutionB2/AS1Durabilityforfurtherinformationaboutthedurabilityrequirements.
FortimbertreatmentandallowablemoisturecontentinformationrefertoNZS3602(TimberandWood-BasedProductsforuseinBuildings)andNZS3640(ChemicalPreservationofRoundSawnTimber)forminimumtimbertreatmentselectionandtreatmentrequirements.Alsorefertoframingmanufacturersliteratureforfurtherguidanceontimberselection.Framingmustbeprotectedfrommoistureatsitesinaccordancewiththerecommendationsoftheframingmanufacturer.
NOTE:
RefertoNZS3602forinformationabouttheallowablemoisturecontentintimber.
3.5 FRAME CONSTRUCTIONTheframingmustfullysupportallsheetedges.Theframingmustberigidandnotrelyonthecladdingsheetforstability.
Alltimberframingsizesandset-outmustcomplywithNZS3604andasspecifiedinthisspecification.Useoftimberframingmustbeinaccordancewithframingmanufacturersspecification.
ForspecificengineeringdesignfortimberframingrefertoNZS3603andAS/NZS1170.
3.5.1 Direct Fix Construction MethodFordirectfixedconstructionmethodthefollowingframingisrequired:
Studsprovidedat600mmcentresmaximumand Nogs/dwangsprovidedat1200mmcentresmaximum.
3.5.2 Cavity Construction MethodForcavityconstructionmethodthefollowingframingisrequired:
Whenstudsarespacedat600mmcentresmaximumthenthenogs/dwangsmustbeprovidedat800mmcentresmaximum.
Whenstudsarespacedat400mmcentresthenthenogs/dwangsmaybeprovidedat1200mmcentres.
Anextrastudisrequiredininternalcorners.
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6 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
ThetimberbattensmustbeminimumH3.1treatedinaccordancewithNZS3640(Chemicalpreservationofroughandsawntimber)tocomplywiththedurabilityrequirementsofB2/AS1.
Cavitybattensmustcomplywithfollowingrequirements:
beminimum18mmthick. beminimumaswideasthewidthofstuds. whenstudsareat600mmcentresbattenstobeprovidedat300mmcentres.
befixedbythecladdingfixingstothemainframingthroughthebuildingunderlay.
untilcladdingsarefixedthebattensonlyneedtobetackedtotheframing.
NOTE:
Battenfixingisrequiredtemporarilytokeepthemstraightonthewallduringconstruction.
Nointermediatebattenbetweenstudsisrequired:
whenstudsarespacedatmaximum400mmcentresand whenrigidsheathingsinsteadofbuildingunderlaysareused.NOTE:
100mmlongcavitypackersmustbeusedwhererequiredtosupportfixingsinthiscircumstance.
Battensmustbefixedwith40x2.8mmHardieFlexnailsat800mmcentresmaximum.
4.5 FLASHINGSAllwallopenings,penetrations,intersections,connections,windowsills,headsandjambsmustbeflashedpriortosheetinstallation.PleaserefertomoisturemanagementrequirementsinClause2.5.
Thebuildingunderlaymustbeappropriatelyincorporatedwithpenetrationandjunctionflashings.Materialsmustbelappedinsuchawaythatwatertracksdowntotheexterioronthefaceofbuildingunderlay.JamesHardiewillassumenoresponsibilityforwaterinfiltrationwithinthewallduetopoorinstallationofflashingsorbuildingunderlays.TheselectedflashingmaterialsmustcomplywiththedurabilityrequirementsoftheNZBCAcceptableSolutionE2/AS1.
5 Fixing HardieFlex Sheet
5.1 GENERALHardieFlexSheetsmustbekeptdryandundercoverwhilstinstorageorduringinstallation.FramingmoisturecontentsmustnotexceedthemaximumlimitspecifiedinNZS3602priortosheetinstallation.Everyendeavourmustbemadetokeepframingdryoncesheetfixingcommences.
Allsheetedgesmustbesealedpriortoinstallation.Thesheetedgesmustalsobesealedaroundwindow/dooropeningsandotherpenetrationse.g.meterboxesetc.
5.2 FASTENER DURABILITYFastenersmustmeettheminimumdurabilityrequirementsoftheNZBC.NZS3604specifiestherequirementsforfixingmaterialtobeusedinrelationtoexposureconditionsandaresummarisedinTable2.
Table2Exposure conditions and nail selection prescribed by NZS 3604
Nail Material
ZoneD* ZoneCoutsideseasprayzoneandZoneBandGeothermalhotspots
BracingAllzones
Grade316Stainless
Hot-dippedgalvanisedor316stainless
Grade316stainless
* (Zone C areas where local knowledge dictates that increased durability is required, appropriate selection shall be made) Microclimate conditions as detailed in NZS 3604, paragraph 4.2.4 require SED.
AlsorefertotheNZBCAcceptableSolutionE2/AS1Table20and21forinformationregardingtheselectionofsuitablefixingmaterialsandtheircompatibilitywithothermaterials.
5.3 FASTENER SIZE AND LAYOUTHardieFlexSheetmustbefixedtoframingusingthefixingsasspecifiedinTable3andinaccordancewiththefollowingrequirements:
Nailsmusthaveaminimumclearanceof12mmfromsheetedgesandaminimumof75mmverticallyand150mmhorizontallyfromsheetcorners.
Nailsmustfinishflushwithsheetsurface.
Table3Sheet fixingDirect to stud fixing
40x2.8mmHardieFlexnails
Fixsheetat200mmcentresatallsheetedgesaswellasallintermediateframing.
Cavity construction up to and including VH wind zones
60x3.15mmHardieFlexnails
Fix sheet at 200mm centres at all studs and at 150mm centres at top plate and bottom plate.
Cavity construction on buildings with EH wind zone or with uls design wind pressure of up to 2.5kPa
60x3.15mmHardieFlexnails
Fix sheet at 150mm centres at all sheet edges as well as all intermediate framing.
WhenusingrigidairbarrierlikeHomeRABPreCladLiningorRABBoard,thecladdingfixingnailsmustbeincreasedinlengthequaltothethicknessoftherigidairbarrier.
NOTE:
Specialfixingarrangementsarerequiredforbracingandfire-resistanceratedwallsystems.FormoreinformationAskJamesHardieon0800808868.
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6 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 7
5.4 GUN NAILINGHardieFlexSheetscanbefixedusingnailguns.Thegunnailsusedmusthaveafullroundheadtoprovidetherequiredholdingpower.Thelengthandgaugeofnailsmustataminimumbeasspecifiedinthisdocument.Checkwithnailgunmanufacturerformoreinformation.
NOTE:
DonotuseDHeadnails.Donotusegunnailingforbracingapplications.
5.5 SHEET LAYOUT Allsheetedgesmustbesupportedbytheframing. HardieFlexSheetmustbefixedvertically.
6 Jointing6.1 GENERALHardieFlexSheetscanbejointedinanumberofwaystoachievedifferentpanelisedlookofthewalls.
6.2 VERTICAL JOINTHardieFlexSheetscouldhavethefollowingtypesofverticaljoints.
uPVCHardiejointerJoint,refertoFigure4and23 TimberBattenJoint,refertoFigure5and24 FlexibleSealantJoint,refertoFigure6and25
6.3 INTERNAL CORNER AND EXTERNAL CORNER
HardieFlexSheetcouldhavethefollowingtypesofinternalandexternalcorners.
uPVCJointer,refertoFigure7,8,26,27and34 TimberBattenJoint,refertoFigure9,10,28and29 FlexibleSealantJoint,refertoFigure11,12,30and31
6.4 HORIZONTAL JOINTAtfloorjoistlevelsahorizontaljointmustbeprovidedtoaccommodatethemovementresultingfromtimberjoistshrinkageandsettlement.
ForHardieFlexSheetsuseaJamesHardieuPVChmouldtoformahorizontaljointorapurposemademetalZflashingcouldalsobeusedtoformahorizontaljoint.
7 Finishing
7.1 PREPARATIONPaintingofHardieFlexSheetsisrequiredinordertomeetthedurabilityrequirementsoftheNZBCandproductwarranties.HardieFlexSheetsmustbedryandfreefromdirtbeforepainting.Coatingmustbecompletedwithin3monthsofsheetinstallation.
WhenusinguPVCflashings,thelightreflectivevalueofthecolourusedmustbemorethan40%asrequiredunderE2/AS1.Darkcolourscauseexcessivemovementanddeterioratethecladdingperformance.
7.2 SEALANTS AllsealantsmustmeettherelevantrequirementsoftheNZBC.Applicationanduseofsealantsmustcomplywithmanufacturersinstructions.Checkwithsealantmanufacturerpriortocoatingoversealants.Somesealantmanufacturersdonotrecommendcoatingovertheirproduct.
7.3 COATING UseonlyqualityexteriorpaintscomplyingwithAS3730.Manufacturersspecificationfortheselectedpaintmustbefollowed.Notethatsomepaintsrequireundercoatbeforeapplyingthefinishcoat.Priortocoating,thesurfaceshouldbeexaminedtoensureitisclean,dryandfreeofanydustorcontaminants.WhenusinguPVCflashings,thelightreflectivevalue(LRV)forthecolourmustnotbelessthan40%.
PaintswithalowLRVwillabsorbmoresolarheatandcouldcausethecomponentsusedinthewalltoexpandorcontract.Thiscombinedwithglossypaintsandwettimberusedatconstructionstage,couldleadtoincreasedchancesoffastenerreadthroughasiscommonwithanyotherbuildingmaterial.
Enamelbasedpaintscanbeused,utilisingathree-coatsystem.Refertothepaintmanufacturerfordetailsbeforecommencingthecoatingwork.
Paintmustnotbeappliedwhenthetemperatureisbelow10C.
8 Storage and handling
HardieFlexSheetsmustbelaidflatonasmoothlevelsurface.Edgesandcornersmustbeprotectedfromchipping.Toensureoptimumperformance,storepanelsundercoverandkeepdrypriortofixing.Ifthesheetsbecomewet,allowthemtodrythoroughlybeforefixing.Donotcarrysheetsontheflat,carryintheverticalpositiontoavoidexcessivebending.
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8 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
10.3 SHEET SIZES AvailablesizesofHardieFlexSheetsarespecifiedinTable4.
Table4Sheet sizes HardieFlex Sheets 6mm and 7.5mmThickness (mm)
Width (mm)
Length (mm)
1800 2400 2700 3000
6 900 3
6 1200 3 3 3 3
7.5 1200 3 3 3
10.4 DURABILITYHardieFlexSheets,wheninstalledandmaintainedasperthetechnicalspecification,willmeetthedurabilityrequirementsforcladdingsasrequiredintheNZBCApprovedDocumentB2Durability.
10.4.1 Resistance to moisture/rottingHardieFlexSheetsdemonstrateresistancetopermanentmoistureinduceddeterioration(rotting)andhaspassedthefollowingtestsinaccordancewithAS/NZS2908.2:
WaterPermeability(Clause8.2.2) WarmWater(Clause8.2.4) HeatRain(Clause6.5) SoakDry(Clause8.2.5)
10.4.2 Resistance to fireHardieFlexSheetisclassifiedasNon-CombustibleMaterialwhichissuitableforuseasexternalcladdingandcomplieswiththeprovisionsofClauseCProtectionFromFirecompliancedocumentofNZBC.
10.4.3 Alpine regionsInregionssubjecttofreeze/thawconditions,HardieFlexSheetmustnotbeindirectcontactwithsnoworicebuildupforextendedperiods,e.g.externalwallsinalpineregionsmustbeprotectedwheresnowdriftsoverwinterisexpected.
TheHardieFlexSheethasbeentestedinaccordancewithAS/NZS2908.2Clause8.2.3.
9 Maintenance
ItistheresponsibilityofthespecifiertodeterminenormalmaintenancerequiredtocomplywiththeNZBCAcceptableSolutionB2/AS1.Theextentandnatureofmaintenancewilldependonthegeographicallocationandexposureofthebuilding.Asaguide,itisrecommendedthatbasicnormalmaintenancetasksshallincludebutnotbelimitedto:
Washingdownexteriorsurfacesevery6-12months* Re-applyingofexteriorprotectivefinishesifnecessary** Maintainingtheexteriorenvelopeandconnectionsincludingjoints,penetrations,flashingsandsealantsthatmayprovideameansofmoistureentrybeyondtheexteriorcladding
Cleaningoutgutters,blockedpipesandoverflowsasrequired Pruningbackvegetationthatisclosetoortouchingthebuilding.
* Do not use a water blaster to wash down the cladding.** Refer to paint manufacturer for washing down and recoating requirements related to paint performance.
10 Product information
10.1 MANUFACTURING AND CLASSIFICATION
HardieFlexSheetsareacellulosefibrereinforcedcementbuildingproduct.ThebasiccompositionisPortlandcement,groundsand,cellulosefibreandwater.ThesheetsareeasilyidentifiedbythenameHardieFlexprintedatregularintervalsonthebackfaceofsheet.
HardieFlexSheetsaremanufacturedtoAS/NZS2908.2Cellulose-CementProductsPart2:FlatSheets(ISO8336FibreCementFlatSheets)standardsinNewZealand.JamesHardieNewZealandisanISO9001Telarccertifiedmanufacturer.HardieFlexSheetsareclassifiedTypeA,Category3inaccordancewithAS/NZS2908.2Cellulose-CementProducts.
ForSafetyDataSheets(SDS)visitwww.jameshardie.co.nzorAskJamesHardieon0800808868.
10.2 PRODUCT MASS HardieFlexSheetsaremanufacturedintwothickness.The6.0mmthicksheethasaMassof8.6kg/m2atEMCandthe7.5mmthicksheethasaMassof10.8kg/m2atEMC.
HardieFlexSheetsaredefinedasaLightWeightWallCladding(notexceeding30kg/m2)asperNZS3604.
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8 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 9
11 Safe working practices
WARNING DO NOT BREATHE DUST AND CUT ONLY IN WELL VENTILATED AREAJamesHardieproductscontainsand,asourceofrespirablecrystallinesilicawhichisconsideredbysomeinternationalauthoritiestobeacauseofcancerfromsomeoccupationalsources.Breathingexcessiveamountsofrespirablesilicadustcanalsocauseadisablingandpotentiallyfatallungdiseasecalledsilicosis,andhasbeenlinkedwithotherdiseases.Somestudiessuggestsmokingmayincreasetheserisks.Duringinstallationorhandling:(1)workinoutdoorareaswithampleventilation;(2)minimisedustwhencuttingbyusingeitherScoreandSnapknife,fibrecementshearsor,wherenotfeasible,useaHardieBladeSawBladeanddust-reducingcircularsawattachedtoaHEPAvacuum;(3)warnothersintheimmediateareatoavoidbreathingdust;(4)wearaproperly-fitted,approveddustmaskorrespirator(e.g.P1orP2)inaccordancewithapplicablegovernmentregulationsandmanufacturerinstructionstofurtherlimitrespirablesilicaexposures.Duringclean-up,useHEPAvacuumsorwetcleanupmethods-neverdrysweep.Forfurtherinformation,refertoourinstallationinstructionsandSafetyDataSheetsavailableatwww.jameshardie.co.nz.
FAILURE TO ADHERE TO OUR WARNINGS, SAFETY DATA SHEETS, AND INSTALLATION INSTRUCTIONS MAY LEAD TO SERIOUS PERSONAL INJURY OR DEATH.
James Hardie recommended safe working practices
CUTTING OUTDOORS
1.Positioncuttingstationsothatwindwillblowdustawayfromuserorothersinworkingarea.
2.Useoneofthefollowingmethodsbasedontherequiredcuttingrate:
BEST
Scoreandsnap Handguillotine Fibreshear
BETTER
DustreducingcircularsawequippedwithHardieBladeSawBladeandHEPAvacuumextraction.
GOOD
DustreducingcircularsawequippedwithHardieBladeSawBlade
CUTTINGINDOORS
Cutonlyusingscoreandsnap,handguillotineorfibreshears(manual,electricorpneumatic).
Positioncuttingstationinwell-ventilatedarea
Drilling/othermachining
WhendrillingormachiningyoushouldalwayswearaP1orP2dustmaskandwarnothersintheimmediatearea.
IMPORTANTNOTES
1.Formaximumprotection(lowestrespirabledustproduction),JamesHardierecommendsalwaysusingBest-levelcuttingmethodswherefeasible
2.NEVERuseapowersawindoors3.NEVERuseacircularsawbladethatdoesnotcarrythe
HardieBladelogo4.NEVERdrysweepUsewetsuppressionorHEPA
Vacuum5.NEVERusegrinders6.ALWAYSfollowtoolmanufacturerssafetyrecommendations
P1orP2respiratorscanbeusedinconjunctionwithabovecuttingpracticestofurtherreducedustexposures.Additionalexposureinformationisavailableatwww.jameshardie.co.nztohelpyoudeterminethemostappropriatecuttingmethodforyourjobrequirements.Ifconcernstillexistsaboutexposurelevelsoryoudonotcomplywiththeabovepractices,youshouldalwaysconsultaqualifiedindustrialhygienistorcontactJamesHardieforfurtherinformation.
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10 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Working instructionsRefertorecommendedSafeWorkingPracticesbeforestartinganycuttingormachiningofproduct.
Score and SnapScoreandSnapisafastandefficientmethodofcuttingtheproductusingspecialtungstentippedScoreandSnapknife.
Preferablyscoreonthefacesideoftheproduct.Scoreagainstastraightedgeandrepeattheactiontoobtainadequatedepthforcleanbreaknormally1/3ofsheetthickness.Snapupwardstoachievebreak.Smoothanyroughedgeswitharasp.
Hand GuillotineMakeguillotinecutontheoff-cutsideoflinetoallowforthethicknessoftheblade.
Fibreshear Heavy Duty Anelectricallypowered,fast,cleanandeffortlesswayofcuttingJamesHardiebuildingproducts,especiallyaroundcurvessuchasarchways.MakeFibreshearcutontheoff-cutsideofthelinetoallowforthethicknessoftheshear.
HardieBlade Saw BladeTheHardieBladeSawBladeusedwithadust-reducingsawandHEPAvacuumextractionallowsforfast,cleancuttingofJamesHardiefibrecementproducts.Adust-reducingsawusesadustdeflectororadustcollectorconnectedtoavacuumsystem.Whensawing,clampastraight-edgetothesheetasaguideandrunthesawbaseplatealongthestraightedgewhenmakingthecut.
Hole FormingFor smooth clean cut circular holes: Markthecentreoftheholeonthesheet. Pre-drillapilothole. Usingthepilotholeasaguide,cuttheholetotheappropriatediameterwithaholesawfittedtoaheavydutyelectricdrill.
For irregular holes: Smallrectangularorcircularholescanbecutbydrillingaseriesofsmallholesaroundtheperimeteroftheholethentappingoutthewastepiecefromthesheetface.
Tapcarefullytoavoiddamagetosheets,ensuringthatthesheetedgesareproperlysupported.
Storage and handlingAllJamesHardiebuildingproductsshouldbestoredtoavoiddamage,withedgesandcornersofthesheetsprotectedfromchipping.JamesHardiebuildingproductsmustbeinstalledinadrystateandbeprotectedfromrainduringtransportandstorage.Theproductmustbelaidflatundercoveronasmoothlevelsurfaceclearofthegroundtoavoidexposuretowaterormoisture,etc.
QualityJamesHardieconductsstringentqualitycheckstoensurethatanyproductmanufacturedfallswithinourqualityspectrum.Itistheresponsibilityofthebuildertoensurethattheproductmeetsaestheticrequirementsbeforeinstallation.JamesHardiewillnotberesponsibleforrectifyingobviousaestheticsurfacevariationsfollowinginstallation.
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10 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 11
Accessories/tools supplied by James Hardie
6mm HardieFlex Sheet
Accessory Code Size (mm) Material/appearance
6mmCappingMould 2400 3000
300539300540
2400long3000long
uPVC/Bonecolour
6mmHorizontalFlashing 302254 3000long uPVC/Bonecolour
6mmHardiejointer 2400 3000
300730300734
2400long3000long uPVC/Bonecolour
6mm and 7.5mm HardieFlex Sheets
Accessory Code Size (mm) Material/appearance
VentStrip 302490 3000long uPVC
HorizontalFlashingJointer 301921 100long uPVC/Bonecolour
6mmHorizontalFlashing 302254 3000long uPVC/Bonecolour
6mmHardiejointer 2400 3000
300730300734
2400long3000long
uPVC/Bonecolour
CornerFlashingJointer301920 50x50 uPVC/Bonecolour
Inseal32591.5mmthick 50mm 80mm
300767300769
50mroll50mroll
BlackCompressibleFoam
HardieFlexNail-5kg
30278260x3.15mmx6.8mmheadsize 316StainlessSteel
HardieFlexNail-5kg 302784
60x3.15mmx6.8mmheadsize HotDipGalvanised
HardieBladeSawBlade 300660 4tooth184mm DiamondTipped
CornerUnderflashing50mmx50mm
303745 3000long uPVC/Bonecolour
2pieceInternalCorner 305756 3000long uPVC/Bonecolour
2pieceExternalCorner 305755 3000long uPVC/Bonecolour
12 Accessories
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12 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Accessories not supplied by James Hardie
JamesHardierecommendsthefollowingproductsforuseinconjunctionwithitsHardieFlexSheets.JamesHardiedoesnotsupplytheseproducts.Pleasecontactcomponentmanufacturerforinformationontheirwarrantiesandfurtherinformationontheirproducts.
Accessory Size (mm) Material/appearance
HardieFlexnail/FibreCementnail 40x2.8mm 316StainlessSteel
HardieFlexnail/FibreCementnail 40x2.8mm HotDipGalvanised
HardieFlexnail/FibreCementnail 60x3.15mm 316StainlessSteel
HardieFlexnail/FibreCementnail 60x3.15mm HotDipGalvanised
SikaflexAT-Facadeorsimilar Tube
PEFrodSikaBoomorsimilar
Polyethylenefoam
FlashingtapeTyvek,Protectowraporsimilar
Proprietarytapetoadheretobuildingunderlay
Inseal3109SealingStrip 19mm x 10mm x 12m Black Compressible Foam
FlashingtoTable20E2/AS1 ReferFigure13 Flashingfabricator
ScoringKnife TungstenCarbide
Accessories/Tools supplied by James Hardie
7.5mm HardieFlex Sheet
Accessory Code Size (mm) Material/appearance
7.5mmHardiejointer 2400 3000
300731 300735
2400long3000long
uPVC/Bonecolour
7.5mmCappingMould 300541 3000long uPVC/Bonecolour
7.5mmHorizontalFlashing 302256 3000long uPVC/Bonecolour
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12 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 13
13 Details
VariousdetailsoutlinedinthefollowingtableareavailableonPages13to38.
Table7Details
Description Direct fixed Cavity construction
Figure Page Figure Page
Framing Figure1 14 Figure19 25
SheetFixing Figure2 15 Figure21 27
ConcreteFoundationDetail Figure3 16 Figure22 28
VerticaluPVCJoint Figure4 16 Figure23 29
TimberBattenJoint Figure5 17 Figure24 29
VerticalSealantJoint Figure6 17 Figure25 29
InternaluPVCCornerJoint Figure7 18 Figure26 30
ExternaluPVCCornerJoint Figure8 18 Figure27 30
InternalTimberBattenCorner Figure9 19 Figure28 31
ExternalTimberBattenCorner Figure10 19 Figure29 31
InternalSealantJointCorner Figure11 20 Figure30 32
ExternalSealantJointCorner Figure12 20 Figure31 32
HorizontalControlJoint Figure13 21 Figure33 34
SoffitDetail Figure14 22 Figure32 33
hMouldJointer Figure15 22
WindowSill Figure16 23 Figure35 35
WindowHead Figure17 24 Figure36 36
WindowJamb Figure18 24 Figure37 36
CavityBattenFixing Figure20 26
CornertohMouldJoint Figure34 35
OnePieceApronFlashingJoint Figure38 37
ParapetFlashing Figure39 37
PipePenetration Figure40 38
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14 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure1:Directfixframing
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14 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 15
Figure2:Directfixsheetfixing
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16 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure3:Directfixconcretefoundationdetail
Figure4:DirectfixverticaluPVCjoint
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16 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 17
Figure5:Directfixverticaltimberbattenjoint
Figure6:Directfixverticalsealantjoint
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18 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure7:DirectfixinternaluPVCcornerjoint
Figure8:DirectfixexternaluPVCcornerjoint
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18 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 19
Figure9:Directfixinternaltimberbattencorner
Figure10:Directfixexternaltimberbattencorner
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20 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure11:Directfixinternalsealantjointcorner
Figure12:Directfixexternalsealantjointcorner
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20 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 21
Figure13:Directfixhorizontalcontroljoint
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22 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure14:Directfixsoffitdetail
Figure15:hmouldjointer
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22 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 23
Figure16:Directfixwindowsill
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24 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure18:Directfixwindowjamb
Figure17:Directfixwindowhead
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24 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 25
Figure19:Cavityfixframing
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26 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure20:Cavitybattenfixing
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26 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 27
Figure21:Cavitysheetfixing
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28 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure22:Cavityconcretefoundationdetail
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28 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 29
Figure25:Cavityverticalsealantjoint
Figure23:CavityverticaluPVCjoint
Figure24:Cavityverticaltimberbattenjoint
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30 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure26:CavityinternaluPVCcornerjoint
Figure27:CavityexternaluPVCcornerjoint
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30 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 31
Figure28:Cavityinternaltimberbattencorner
Figure29:Cavityexternaltimberbattencorner
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32 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure30:Cavityinternalsealantjointcorner
Figure31:Cavityexternalsealantjointcorner
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32 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 33
Figure32:Cavitysoffitdetail
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34 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure33:Cavityhorizontalcontroljoint
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34 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 35
Figure35:Cavitywindowsill
Figure34:Cavitycornertohmouldjoint
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36 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure37:Cavitywindowjamb
Figure36:Cavitywindowhead
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36 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand 37
Figure38:Cavityonepieceapronflashingjoint
Figure39:Cavityparapetflashing
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38 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Figure40:Cavitypipepenetration
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38 James Hardie HardieFlex Sheet Technical Specification October 2013 New Zealand
Product WarrantyOctober 2013JamesHardieNewZealand(JamesHardie)warrantsforaperiodof15yearsfromthedateofpurchasethattheHardieFlexSheet(theProduct),willbefreefromdefectsduetodefectivefactoryworkmanshipormaterialsand,subjecttocompliancewiththeconditionsbelow,willberesistanttocracking,rotting,fireanddamagefromtermiteattackstotheextentsetoutinJamesHardiesrelevantpublishedliteraturecurrentatthetimeofinstallation.JamesHardiewarrantsforaperiodof15yearsfromthedateofpurchasethattheaccessoriessuppliedbyJamesHardiewillbefreefromdefectsduetodefectivefactoryworkmanshipormaterials.
NothinginthisdocumentshallexcludeormodifyanylegalrightsacustomermayhaveundertheConsumerGuaranteesActorotherwisewhichcannotbeexcludedormodifiedatlaw.
CONDITIONS OF WARRANTY: Thewarrantyisstrictlysubjecttothefollowingconditions:
a) JamesHardiewillnotbeliableforbreachofwarrantyunlesstheclaimantprovidesproofofpurchaseandmakesawrittenclaimeitherwithin30daysafterthedefectwouldhavebecomereasonablyapparentor,ifthedefectwasreasonablyapparentpriortoinstallation,thentheclaimmustbemadepriortoinstallation.
b) Thiswarrantyisnottransferable.
c) TheProductmustbeinstalledandmaintainedstrictlyinaccordancewiththerelevantJamesHardieliteraturecurrentatthetimeofinstallationandmustbeinstalledinconjunctionwiththecomponentsorproductsspecifiedintheliterature.Further,allotherproducts,includingcoatingandjointingsystems,appliedtoorusedinconjunctionwiththeProductmustbeappliedorinstalledandmaintainedstrictlyinaccordancewiththerelevantmanufacturersinstructionsandgoodtradepractice.
d) TheprojectmustbedesignedandconstructedinstrictcompliancewithallrelevantprovisionsofthecurrentNewZealandBuildingCode(NZBC),regulationsandstandards.
e) Theclaimantssoleremedyforbreachofwarrantyis(atJamesHardiesoption)thatJamesHardiewilleithersupplyreplacementproduct,rectifytheaffectedproductorpayforthecostofthereplacementorrectificationoftheaffectedproduct.
f) JamesHardiewillnotbeliableforanylossesordamages(whetherdirectorindirect)includingpropertydamageorpersonalinjury,consequentialloss,economiclossorlossofprofits,arisingincontractornegligenceorhowsoeverarising.WithoutlimitingtheforegoingJamesHardiewillnotbeliableforanyclaims,damagesordefectsarisingfromorinanywayattributabletopoorworkmanship,poordesignordetailing,settlementorstructuralmovementand/ormovementofmaterialstowhichtheProductisattached,incorrectdesignofthestructure,actsofGodincludingbutnotlimitedtoearthquakes,cyclones,floodsorothersevereweatherconditionsorunusualclimaticconditions,efflorescenceorperformanceofpaint/coatingsappliedtotheProduct,normalwearandtear,growthofmould,mildew,fungi,bacteria,oranyorganismonanyProductsurfaceorProduct(whetherontheexposedorunexposedsurfaces).
g) Allwarranties,conditions,liabilitiesandobligationsotherthanthosespecifiedinthiswarrantyareexcludedtothefullestextentallowedbylaw.
h) Ifmeetingaclaimunderthiswarrantyinvolvesre-coatingofProducts,theremaybeslightcolourdifferencesbetweentheoriginalandreplacementProductsduetotheeffectsofweatheringandvariationsinmaterialsovertime.
DISCLAIMER: TherecommendationsinJamesHardiesliteraturearebasedongoodbuildingpractice,butarenotanexhaustivestatementofallrelevantinformationandaresubjecttoconditions(c),(d),(f)and(g)above.JamesHardiehastestedtheperformanceoftheHardieFlexSheetwheninstalledinaccordancewiththeHardieFlexSheettechnicalspecification,inaccordancewiththestandardsandverificationmethodsrequiredbytheNZBCandthosetestresultsdemonstratetheproductcomplieswiththeperformancecriteriaestablishedbytheNZBC.However,asthesuccessfulperformanceoftherelevantsystemdependsonnumerousfactorsoutsidethecontrolofJamesHardie(e.g.qualityofworkmanshipanddesign)JamesHardieshallnotbeliablefortherecommendationsmadeinitsliteratureandtheperformanceoftherelevantsystem,includingitssuitabilityforanypurposeorabilitytosatisfytherelevantprovisionsoftheNZBC,regulationsandstandards,asitistheresponsibilityofthebuildingdesignertoensurethatthedetailsandrecommendationsprovidedintherelevantJamesHardieinstallationmanualaresuitablefortheintendedprojectandthatspecificdesignisconductedwhereappropriate.
CopyrightOctober2013.JamesHardieNewZealand.TManddenotesaTrademarkorRegisteredMarkownedbyJamesHardieTechnologyLimited.
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CopyrightOctober2013.JamesHardieNewZealand.TManddenotesaTrademarkorRegisteredMarkownedbyJamesHardieTechnologyLimited.