top hat rainscreen technical specification · a cavity must not restrict ventilation or drainage of...

FEBRUARY 2013 / NEW ZEALAND

Top Hat Rainscreen Technical Specification

FACADE PANEL

ExoTec

2 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand

1 APPLICATIONANDSCOPE 31.1 Application 31.2 Scope 31.3 Details 31.4 SpecificDesignandDetailing 2

2 DESIGN 32.1 Compliance 32.2 Responsibility 32.3 SiteandFoundation 42.4 Clearances 42.5 MoistureManagement 42.6 FramingandTopHatSections 42.7 WindPressure 42.8 FastenerSpacing 62.9 FireRatedWalls 6

3 SUBSTRUCTUREANDPREPARATION 6

3.1 Substructure 63.2 RAB™Board 63.3 BuildingUnderlay 63.4 Flashing 6

4 EXOTECTOPHATANDPANELLAYOUT 7

4.1 General 74.2 PanelOrientationandLayout 7

5 FIXING 75.1 General 75.2 FastenerDurability 75.3 CountersunkFasteners 75.4 ExposedHeadFasteners 75.5 ExoTecTopHatFixing 8

Contents

6 JOINTS 86.1 PanelJoints 86.2 VerticalPanelJoints 86.3 HorizontalPanelJoints 86.4 JointinginVeryHighWindPressure 86.5 FlashingOverlaps 86.6 MovementJoints 86.6.1 VerticalStructuralJoints 86.6.2 HorizontalStructuralJoints 8

7 JUNCTIONS 97.1 SlabJunctions 97.2 Head 97.3 Base 97.4 SoffitJunction 97.5 Abutments 9

8 CORNERS 9

9 WINDOWS 9

10 SPECIALDETAILS 910.1 CurvedFaçades 910.2 ParapetCapping 910.3 Inspection 10

11 FINISHES 1011.1 General 1011.2 PanelsExposedtoDirectSunlight 10

12 STORAGEANDHANDLING 10

13 MAINTENANCE 10

14 PRODUCTINFORMATION 1114.1 ManufacturingandClassification 1114.2 ProductMass 1114.3 ExoTec™FaçadePanel 1114.4 ExoTec™TopHatSection 1114.5 RAB™Board 1114.6 Durability 1114.7 ResistancetoMoisture/Rotting 1114.8 ResistancetoFire 1114.9 AlpineRegions 11

15 SAFEWORKINGPRACTICE 12

16 PRODUCTANDACCESSORIES 13

17 DETAILS 16

PRODUCTWARRANTY 35

WEVALUEYOURFEEDBACKTocontinuewiththedevelopmentofourproductsandsystems,wevalueyourinput.Pleasesendanysuggestions,includingyourname,contactdetails,andrelevantsketchesto:

Ask James Hardie™ [email protected]

2 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand 3

1.4 SPECIFIC DESIGN AND DETAILINGFortheuseofExoTecFaçadePanelandExoTecTopHatsoutsidethescopeofthistechnicalspecification,thedesigner,architectorengineermustundertaketherequiredspecificengineeringdesign.

Anyprojectspecificdetailnotincludedinthisliterature,mustbedevelopedbythedesignerandincludedontheprojectdrawings.

Foraguidanceonspecificengineeringdesigns,AskJamesHardieon0800808868.

2 Design2.1 COMPLIANCEExoTecFaçadePanelinstalledoverExoTecTopHatsasperthistechnicalspecificationhasbeentestedinaNATA(NationalAssociationofTestingAuthorities)accreditedlaboratoryandcomplieswithB1,B2andE2requirementsoftheNewZealandBuildingCode(NZBC).AlldesignsoutsidethescopeofthisspecificationmustsatisfytherelevantclausesoftheNZBCandotherrelevantstandardsandcurrentregulations.

2.2 RESPONSIBILITYThespecifier/designeroranypartyresponsiblefortheprojectisresponsibleforensuringthattheinformationanddetailsincludedinthisspecificationaresuitablefortheintendedapplication.

ThespecifiershallaccommodatetheappropriateprovisionsrequiredbytheNZBC.Carefuldetailingofallpenetrationsthroughtheairbarrierandrainscreenisrequiredandtheymustbeappropriatelyflashedandweatherproofed.Theothermaterialsandcomponentsthatareusedtomanagemoisturemustbeinstalledaspertheirmanufacturer’sinstructionsandcomplywiththerequirementsofrelevantStandardsandtheNZBC.

Thedesigner/specifiermustensurethatallthereferencedocumentsandstandardsreferredtoduringthedesignandconstructionprocessarecurrent.Thedesignermustidentifythemoisturerelatedrisksassociatedwiththeparticularbuildingdesign.Thedesignandconstructionmusteffectivelymanagetheexternalmoisture.

ThewindowstobeusedwithExoTecFaçadePanelmustbespecificallydesignedconsideringthedesignwindpressuresanddeflectioninbuildingfaçade/structure.Refertothewindowmanufacturer/suppliersforinformationregardingtheirspecificationsandinstallationrequirements.Forthelatestinformationinrelationtodesigningforweathertightness,refertowww.branz.co.nzandwww.dbh.govt.nzwebsites.

JamesHardieconductsregularqualitycheckstoensurethatthemanufacturedproductsfallswithinourqualityspectrum.Itistheresponsibilityofthebuilder/installertoensurethattheproductmeetstheiraestheticrequirementsbeforeinstallation.JamesHardiewillnotberesponsibleforrectifyingobviousaestheticsurfacevariationsfollowingtheinstallation.

1 Application and scope1.1 APPLICATIONExoTec™FaçadePanelfixedasperthistechnicalspecificationprovidesadurable,expressedjointpanelappearanceforbuildingfaçadesandfascias.Thisfixingmethodoffersversatilitytoarchitectsandbuilderswhichisdemonstratedbythevarietyofdesignstylesthatcanbeachievedincludingcurvedwalls,vertical/horizontalpanellayoutorbrickpatternlayout.Awiderangeofdecorativefinishescanbeused,fromsite-appliedacrylictextures,tofactory-appliedpolyurethaneplaincolourscanalsobeused.Metallicfinishesprovidedbysomespecialistapplicators.

If you are a specifierOrotherresponsiblepartyforaproject,ensurethattheinformationinthisdocumentisappropriatefortheapplicationyouareplanningandthatyouundertakespecificdesignanddetailingforareaswhichfalloutsidethescopeofthesespecifications.

If you are an installerEnsurethatyoufollowthedesign,moisturemanagementandassociateddetailsandmaterialselectionprovidedbythedesigner.Allthedetailsprovidedinthisdocumentmustbereadinconjunctionwiththisspecificationmanualandtheprojectspecification.

Make sure your information is up to dateWhenspecifyingorinstallingJamesHardieproducts,ensureyouhavethecurrentmanual.Ifyouarenotsureyoudo,oryouneedmoreinformation,visitwww.jameshardie.co.nzorAskJamesHardieon0800808868.

1.2 SCOPEThistechnicalspecificationcoverstheinstallationofExoTecFaçadePanelonExoTecTopHatsuptoawindpressureof5kPa(ULS).Thisspecificationisintendedforusebyarchitects,designers/specifiersandinstallerswhomaybeinvolvedwiththespecificationofExoTecFaçadePanel,ExoTecTopHatsandtheirinstallation.

ThisspecificationcoverstheuseofExoTecFaçadePanelandExoTecTopHatsforcommercialfaçadeapplicationovertimberorsteelframe,masonryandconcretewalls.TheExoTecFaçadePanelandExoTecTopHatscanalsobeusedtoprovideanexpressedjointpanelappearanceinbuildingsoffits.

AlltheinformationanddetailswithinJamesHardieExoTecTopHatRainscreentechnicalspecificationonlyappliestotheinstallationExoTecFaçadePanel.Thesepanelsmaybeusedincurvedfaçadeapplicationsdependingonthecurveradius,refertoClause10.1formoreinformation.

1.3 DETAILSVariousExoTecFaçadePaneldetailsareprovidedintheDetailssectionofthisdocument.ThesedetailsareavailableinCADformatandareavailabletodownloadfromourwebsiteatwww.jameshardie.co.nz.

Alldimensionsshownareinmillimetersunlessnotedotherwise.AllNewZealandstandardsreferencedinthismanualarecurrenteditionandmustbecompliedwith.


2.3 SITE AND FOUNDATIONThesiteonwhichthebuildingissituatedmustcomplywithE1-‘SurfaceWater’clauseofNZBC.ThegradeofadjacentfinishedgroundmustslopeawayfromthebuildingtoavoidanypossibilityofwateraccumulationinaccordancewithNZBCrequirements.Thefoundationslaborfootingsofthestructuremustbebasedon‘GoodGround’asdefinedintheapproveddocumentofNZBCB1‘Structure’.Thefoundationmustbedesignedbyaqualifiedstructuralengineerinaccordancetorelevantcodes,regulationsandstandards.

2.4 CLEARANCESExoTecFaçadePanelmustalwayshaveaminimumclearanceof100mmfrompavedgroundand175mmfromunpavedground.Ontheroofsanddecksa50mmminimumclearancemustbeprovidedandthismustalwaysbemaintained.ExoTecFaçadePanelmustoverhangby50mmminimumbelowthebottomplates.

Donotinstallexternalcladdingsuchthatitmayremainincontactwithstandingwater.

2.5 MOISTURE MANAGEMENTTheExoTecFaçadePanelinstalledoverExoTecTopHatsactsasarainscreen.Toachieveaparticularlevelofweathertightness,thedesignermustdeterminetheappropriatemoisturemanagingdetailsfortheproject.Thedesignershouldconsiderthefollowingmatterswhenmakingthisdecision:

• Itistheresponsibilityofthebuildersanddesignerstoidentifymoisturerelatedrisksassociatedwithanyparticularbuildingdesign.Itistheresponsibilityofabuildertoensurethatappropriatelevelofmoisturemanagementisachievedbyproperuseofflashings,sealantsandvapourpermeablemembranesetc.Beforeinstallingpanels,allwallopenings,penetrations,intersections,connections,windowsills,headsandjambsmustincorporateappropriateflashingsformoisturemanagement.Materials,componentsandtheinstallationpracticesrequiredtomanagemoisturemust,ataminimum,complywiththerequirementsofNZBC,relevantstandardsandthemanufacturer’sspecifications.

• ExpressedjointsinExoTecFaçadePanelmustbeprovidedasdetailedinthisliterature,seeClauses6.2and6.3.Forwindpressuresabove4.0kPa,bothverticalandhorizontaljointsmustbefilledwithasuitablepaintableflexiblesealant.RefertoClause6.4forsuitablejointsealant.Refertothesealantmanufacturerforsealantdurabilityinformation.

• Forwallshigherthan10m,ahorizontaldrainagejointmustbeprovided.RefertoFigure24.

• Theinstallationofverminproofing/basemouldatthebaseofacavitymustnotrestrictventilationordrainageofthecavity.RefertoFigure4.

ForinformationonRAB™BoardandbuildingunderlaysrefertoClause3.2and3.3ofthistechnicalspecification.

2.6 FRAMING AND TOP HAT SECTIONSExoTecTopHatsarefixedverticallyovertimber,steelgirtormasonrysubstrates.TheframingtosupporttheExoTecTopHatsectionsmustbeprovidedinaccordancewithspecificengineeringdesignrequirementsoftheprojectandmustbesuitabletofixExoTecTopHatsectionsoverit.ThespecificengineeringdesignmustbeinaccordancewithAS/NZS1170.Theflatnessofframingmustcomplywiththeexpectedaestheticrequirementsetfortheproject.StraighteningorpackingoutbetweenthesubstructureandExoTecTopHatsmustbelimitedto20mmmaximumandmustbedonebehindtheExoTecTopHatsections.ExoTecFaçadePanelsmustonlybefixedtoExoTecTopHatsandExoTecIntermediateTopHatsandExoTecaccessoriesasshownindetails.RefertoFigure3.ExoTecTopHatandIntermediateTopHatsectionsmustnotbeinstalledhorizontally.

ExoTecTopHatsarerequiredatpaneledgesandExoTecIntermediateTopHatsinthemiddleofpanels.TheExoTecTopHatsfixedatpaneledgeshavetheflatsurfacesittingontheframingandtheExoTecIntermediateTopHathastheflatsurfacefacingtowardstherearfaceofpanels.RefertoFigure5.

ThemaximumspansandnominalspacingforfixingExoTecTopHatsandExoTecIntermediateTopHatsforwallandsoffitapplicationsareprovidedinTable1and2respectively.Forwallapplications,themaximumcantileverdistancetheExoTecTopHatcanspanuptois1/4ofthesinglespangiveninTable1.

2.7 WIND PRESSUREItisaresponsibilityoftheprojectengineertodeterminetheappropriatewindpressuresfortheprojectandselectsuitablefixingoftheExoTecTopHatsandExoTecIntermediateTopHatstothestructure.ThecalculatedwindpressureforafaçademustincludethelocalisedcoefficientsasdefinedinAS/NZS1170.Theengineermustlimitthedeflectionofthesupportingstructuretospan/250forserviceabilitywindload.

ExoTecFaçadePanelinstalledoverExoTecTopHatshasbeentestedtowithstandwindpressuresupto5kPa(ULS).

Table1and2specifythespansforExoTecFaçadePanelsandExoTecTopHatSectionsdependinguponthedesignwindpressures.

Table4specifiesthefixingspacingforinstallingExoTecFaçadePaneltoExoTecTopHatsections.

Table3specifiesthedesigncapacityrequiredforthefastenersthatshouldbeusedtofixExoTecTopHatsectionstotheframingsubstrates.


Table1Walls—maximumExoTecTopHatandExoTecIntermediateTopHatspans(mm)forultimatedesignwindpressures

Span Type Nominal Top Hat Spacing

Design Wind Pressure (kPa)

(mm) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

SingleSpan400

600

1750

1530

1530

1330

1390

1210

1290

1120

1210

1060

1150

1010

1100

960

1060

930

1020

890

2SpanContinuous

400

600

2340

2050

2050

1790

1860

1620

1720

1400

1620

1250

1470

1140

1350

1030

1260

960

1160

880

3SpanContinuous

400

600

2160

1890

1890

1650

1710

1500

1590

1390

1500

1250

1420

1140

1350

1030

1260

960

1160

880

Table2Soffits—maximumExoTecTopHatandExoTecIntermediateTopHatspans(mm)forultimatedesignwindpressures



(mm) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 5.0

SingleSpan400

600

1660

1450

1470

1290

1350

1180

1260

1100

1190

1040

1130

990

1080

950

1010

880

2SpanContinuous

400

600

2220

1950

1970

1730

1810

1530

1690

1100

1550

1200

1410

1090

1300

1000

1130

860

3SpanContinuous

400

600

2050

1800

1820

1590

1670

1460

1560

1340

1470

1200

1400

1090

1300

1000

1130

860

Table3FastenerselectiontofixExoTecTopHatsectionintoframing



(mm) 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

SingleSpan400

600

Type1

Type1

Type1

Type1

Type1

Type1

Type1

Type2

Type1

Type2

Type1

Type2

Type1

Type2

Type2

Type2

Type2

Type2

2SpanContinuous

400

600

Type2

Type2

Type2

Type3

Type3

Type3

Type3

Type4

Type3

Type4

Type3

Type4

Type3

Type4

Type4

Type4

Type4

Type4

3SpanContinuous

400

600

Type2

Type2

Type2

Type2

Type2

Type3

Type2

Type3

Type3

Type4

Type3

Type4

Type3

Type4

Type3

Type4

Type3

Type4

Note:n Type1fastenertohaveadesigncapacityupto1kN.Type2fastenertohaveadesigncapacityupto2kN.Type3fastenertohaveadesigncapacity

upto3kN.Type4fastenertohaveadesigncapacityupto4.2kN.

n FastenerspacingtofixTopHatsectionisasperTable1and2.


Table4Fastenerspacingsforwallandsoffitapplications

Design Wind Pressure(Ultimate)

(kPa)

Nominal Top Hat Spacing

(mm)

Max Fasteners Spacing at Sheet Edges(mm)

Max Fasteners Spacing at Intermediate Top Hats(mm)

1.0-1.5600 600 600

400 600 600

1.5-2.5600 400 400

400 600 600

2.5-3.0 400 450 450

3.0-3.5 400 400 400

3.5-5.0 400 300 300

NotestoTables1,2,3and4:

1.ExoTecTopHatspansmayberestrictedtoframingspansrequiredtofixRABBoard,whenfixingExoTecTopHatsectionsintothesameframingasusedtofixRABBoard.

2.ExoTecTopHatdeflectionforserviceabilitylimitstatedesigntoAS/NZS1170.2islimitedtospan/250.

3.DesignWindPressurestobeinaccordancewithAS/NZS1170.2forultimatestrengthdesign.

4.Forpermissibledesignwindpressure,dividetheultimatestrengthdesignwindpressuresby1.5.

2.8 FASTENER SPACINGTable4indicatesthemaximumfastenerspacingtofixExoTecFaçadePanelsintoExoTecTopHatsectionsforwallandsoffitapplications.

2.9 FIRE RATED WALLSFireratedwallcanbeconstructedwhenusingrigidairbarriers.AfireratingcanbeachievedwhenusingRABBoardasrigidairbarrierupto60minutes.Theotherfireratedsystemrequirementsmustbeincludedinthewallconstructiontoachievetherequiredfireratings.Formoreinformation,refertoJamesHardieFireandAcousticDesignManualavailableatwww.jameshardie.co.nzorAskJamesHardieon0800808868foracopy.

3 Substructure and preparation

3.1 SUBSTRUCTURETheExoTecTopHatandExoTecIntermediateTopHatsectionsareinstalledverticallyoversteelgirtsornogs.Whenusingtimberframing,thenoggingsbetweenstudscanbeusedtosupportExoTecTopHatandExoTecIntermediateTopHatsections.TheframingtowhichtheExoTecTopHatsectionsarefixedmustbestructurallyadequatetoresistthefaçadeloading.Thetimberframingusedmustbetreatedandhavethemoisturecontentwithinthe20%limitasspecifiedinNZS3602.

Aqualifiedpersonmustdesignthesubstructuretosuitthedesignwindpressuresandloadingtransferredfromthefaçadetothesubstructure.

3.2 RAB BOARDRABBoardisinstalledoverthemainframingtoactasarigidairbarriertowithstandhighwindpressuresandtomanagemoistureinthecavity.RABBoardinstalledasarigidairbarrierhasbeentestedtowithstandwindpressuresspecifiedinTable1.

RABBoardmustbeusedwithExoTecFaçadePanelTopHatRainscreenwheretheprojectsareexposedtowindpressureshigherthan1.5kPa(ULS).TheRABBoardmustbefixedusing40x2.8mmHardieFlex™nailsat200mmc/ctotheentiretimberframing.

RefertotheJamesHardieRigidAirBarriersInstallationManualorAskJamesHardieon0800808868forfurtherinformationaboutfixingRABBoard.

Note:TheframingrequirementforfixingtheRABBoardmayrestricttheExoTecTopHatspangiveninTable1whenfixingExoTecTopHatsectionsintothesameframing.

3.3 BUILDING UNDERLAYBuildingunderlayissuitabletowithstandalimitedwindpressureandisgenerallyuseduptoawindpressureof1.5kPa(ULS).Abuildingunderlaymaynotperformasdesiredwhenexposedtohigherwindpressuresforprolongeddurations.Thereforewhendealingwithprojectsexposedtowindpressureshigherthan1.5kPa,aRABBoardmustbeused.

Whenconsideringtheuseofabuildingunderlayforaspecificdesignproject,checkwiththebuildingunderlaymanufacturertoconfirmitssuitabilityfortheproposedproject.ThebuildingunderlayisinstalledbetweentheExoTecTopHatsandthesupportingstructure.RefertoFigure5.Buildingunderlaymustbelappedwhenrequiredsoastodrainmoisturetowardstheexteriorofabuilding.

ThebuildingunderlaymustbeinstalledinaccordancewiththeAS/NZS4200.2‘PliableBuildingMembranesandUnderlays–Installation’andthemanufacturer’sspecifications.

BuildingunderlaymustcomplywithTable23ofClauseE2ofNZBC.

3.4 FLASHINGAllwallopenings,penetrations,intersections,connections,windowsills,headsandjambsmustbeflashedpriortoExoTecTopHatandExoTecFaçadePanelinstallation.RefertoClause2.5formoisturemanagementrequirements.


ThebuildingunderlayorRABBoardmustbeappropriatelytapedaroundthepenetrationsandlapped/tapedtoflashings.Materialsmustbelappedinsuchawaythatwatertracksdowntotheexteriorofthebuilding.JamesHardiewillassumenoresponsibilityforwaterinfiltrationwithinthewallduetopoorinstallationofflashingsorbuildingunderlay.TheselectedflashingmaterialmustcomplywiththedurabilityrequirementsofNZBC.ForinformationrefertoTable20ofE2ofNZBC.

WhenusingRABBoardtheentiretimberframingaroundtheopeningmustbesealedwithaflashingtape.ThetapemustbelappedoverthefaceofRABBoard.TheflashingtapeslikeProtectotapebyProtectoWrap®orAlubandbyThermakraft®arerecommendedforusewithRABBoard.Refertotapemanufacturer’sliteratureforfurtherinformationregardingtheirinstallation.

4 ExoTec Top Hat and panel layout

4.1 GENERALTheExoTecFaçadePanellayoutmustbeconsideredinconjunctionwiththeExoTecTopHatspacingandsubstructureframingsetout.ExoTecTopHatspacingmustbesuitableforjointingthepanelsandthedesignwindpressures.RefertoFigure3.Whereconstructionjointsoccurinthestructure,thesemustbecarriedthroughExoTecTopHatsandpanels.RefertoFigure25.

4.2 PANEL ORIENTATION AND LAYOUTExoTecFaçadePanelmustbeinstalledwithdistinctivewhitesidefacingtheexteriorofstructurewhereastheclearsealedsideisfacingtowardsthecavity.RefertoClause11.2forspecificrequirements.

Panelsaregenerallyinstalledwitha10mmnominalexpressedverticaljointbetweenadjacentpanels,i.e.for1190mmwidepanelsanda10mmwidejoint,thegriddimensionis1200mmc/c.RefertoFigure3.Verticaljointsupto20mmwidecanbeformedwithadditionalcarerequiredduringinstallationtoensurethepaneledgescovertherubberfixedonbothsidesofExoTecGasketSnapStrip.Averticaljointupto6mmminimumwidthcanalsobeformedwithcare.

Thehorizontalandverticalexpressedjointsbetweendifferentpanelsmayeitherbealignedoroffsettoformabricklayoutpattern.

Notes:

• Wherefeasibleusestockpanelsizestominimisesitecuttingandwastage.SeeSection16forpanelsizes.

• AllsitecutpaneledgesmustbesealedwithDulux®Acraprime501/1orasimilarsealer.

5Fixing

5.1 GENERALExoTecFaçadePanelisfixedtoExoTecTopHatsectionsusingthefollowingfixings;

1.Countersunkscrewsfixed2mmbelowthepanelsurfaceandflushfinishedusingtwopartepoxyfillerandsandedsmooth.Thepanelsarefinishedusingasite-appliedacryliccoating.RefertoClause5.3.

2.Exposedheadscrews,e.g.pan,waferheadhexscrewalongwithExoTecFaçadewasher.Exposedheadfastenerscanalsobecolourcoatedtomatchthepre-paintedpanels.RefertoClause5.4

5.2 FASTENER DURABILITYFastenersmusthavetheappropriatelevelofdurabilityrequiredfortheintendedproject.Thisisofparticularimportanceincoastalareas,subjecttosaltsprayandothercorrosiveenvironments.

Fastenersmustbefullycompatiblewithallothermaterialsthattheyaretobeincontactwithtoensurethedurabilityandintegrityoftheassembly.

Innon-coastalareasaClass3coatedscrewandincoastalareaaClass4coatedscrewmustbeused.Contactfastenermanufacturersformoreinformation.

SeeTable4andFigure3formaximumfastenerspacingrequiredforfixingpanelstoExoTecTopHats.

5.3 COUNTERSUNK FASTENERSFastener Type:10gx30mmcountersunkheadmetalscrewwithrequiredClass3orClass4coating.Thecountersunkscrewholesareflushfinishedwithatwopartepoxyfillerwhichissandedtoasmoothfinish.

Note:Panelsmustbepre-drilledusinga9mmTungstenCarbideDrillBitsuppliedbyJamesHardie.Screwheadmustbecountersunktoamaximumdepthof2mmbelowthepanelsurface.RefertoFigure6.

Flush Sealing Screw Holes:• Useonlyproventwopartepoxiesforsealingholesafterfixing

thescrews.HiltiCA273,NuplexFairingCreamorasimilarepoxyshouldbeused.

• Mixcorrectratioandamountofepoxyforimmediateuseasperthemanufacturer’sinstructions.

• Blowdustoutofholestoachieveadhesionofepoxy.

• Coverthecountersunkfastenerswithtwopartepoxy,finishitflushwiththepanelsurfaceandsandittoarequiredleveloffinish.

5.4 EXPOSED HEAD FASTENERSFastener Types:10gx25mmpan,waferorhexheadmetalscrewwithrequiredClass3orClass4coating.RefertoFigure9.

ExoTecFaçadeWashersmustbeinsertedinthepredrillscrewholesbeforefixingthescrews.

Note:Panelsmustbepre-drilledwitha6mmmasonrytitaniumdrillbit,whichprovidesa6.2to6.3mmdiameterholebeforefixing.


5.5 EXOTEC TOP HAT FIXINGForfixingtheExoTecTopHatsectionintotheframingsubstrate,thedesignermustspecifythetypeoffastenertobeusedtowithstandthedesignwindpressures.RefertoTable3foraguidancetocheckthedesigncapacityofthefastenerrequired.

Themaximumfixingc/cdistancewillbeaspertheExoTecTopHatspansprovidedinTable1and2asthesectionscanonlybefixedatsupportpoints.

6 Joints6.1 PANEL JOINTSExoTecFaçadePanelsaregenerallyinstalledwithanominal10mmwideexpressedjointbetweenadjacentpanels,verticallyandhorizontally.

6.2 VERTICAL PANEL JOINTSAtverticalpaneljoints,priortofixingpanels,theExoTecGasketSnapStripisfittedintoExoTecTopHatsbystartingononesideofthetophatsectionandpushingitintotheothersidealongitslength.ThesnaponstripsarebuttedtogethertoformajointinExoTecTopHatsectionwithoutanysealant.

TheExoTecGasketSnapStripisahi-tensileroll-formedsteelsectionwithrubbergasketsfittedinitonbothsides.Itgetscompressedunderthepaneledgesandprovidesaprimaryweathertightnessattheverticaljoint.SeeFigure7.

Averticaljointupto20mminwidthcanbeformed.ItmustbeensuredthatthepaneledgescovertherubbergasketfittedoneithersideofExoTecGasketSnapStrip.Theverticaljointscanbestaggeredtoachieveabricklayoutpattern.SeeFigures1and2.

Note:TheverticaljointmustalwaysbeformedovertheExoTecTopHatsection.

6.3 HORIZONTAL PANEL JOINTSHorizontaljointsareformedusingAluminium‘T’socketora‘Z’flashing.TheAluminium‘T’Socketisbondedtothereartopedgeofpanelsusingapolyurethaneadhesivesealante.g.Seal‘N’Flex-1byBostik,Sikaflex11FCbySikaorsimilar.TheloweredgeofupperpanelabovethejointisalsosealedandlapsovertheupstandofAluminium‘T’Socket.RefertoFigure19and20.The‘T’Socketisa1.2mmthickaluminiumextrudedsection.

ThefixingsalongthehorizontalpaneledgesmustnotpenetratethroughtheAluminium‘T’Socket.

Aluminium‘T’SocketmustbesealedtotheExoTecTopHatsectionattheirintersectionpointasshowninFigures20and21tostopmoisturepenetrationbehindthe‘T’Socket.

Whereaverticalpaneljointterminatesoverthehorizontaljoint,the‘T’SocketisalsosealedtothefaceofExoTecGasketSnapStrip.RefertoFigures22and23.

6.4 JOINTING IN VERY HIGH WIND PRESSURE Fordesignwindpressuresincludingandabove4.0kPa,horizontalandverticaljointsmustbecontinuouslysealedwithasuitableflexibleandpaintablejointsealante.g.FosrocSilaFlexMS,Seal‘N’Flex-1orsimilar.RefertoFigure8.

Note:Whenusingahorizontal‘Z’flashing,thehorizontaljointsmustnotbesealed.Sealthebuttjoint.

Refertosealantmanufacturersinstructionsforapplicationandpainting.

6.5 FLASHING OVERLAPSWhenusing‘Z’flashingsathorizontaljointsorcapflashingsontopofwallsetc.RefertoTable5fortheminimumlaprequiredoverthecladding.RefertoFigure22.

Table5Minimumflashingoverlaps

MaximumDesignWindPressure(kPaULS)upto

1.5 2.5 5.0

MinimumFlashingCover(mm) 35 50 75

6.6 MOVEMENT JOINTSMovementjointsarerequiredtolimitorremovestressestransferredtopanelsduetothemovement/deflectionsexperiencedinframing.

6.6.1 VERTICAL STRUCTURAL JOINTSWhereverticalstructuraljointsareprovidedinabuildingtoaccommodateforstructuralmovement,theverticaljointsinExoTecFaçadePanelmustcoincidewiththesestructuralverticaljoints.TheverticalstructuraljointisconstructedasshowninFigure25.Theprojectengineerisresponsibleforspecifyingthelocationsofverticalstructuraljoints

Forpanelabuttingintomasonry/concretewallseeFigures26and27.

6.6.2 HORIZONTAL STRUCTURAL JOINTS Horizontalstructuraljointsarerequiredatfloor/slablevelwheretheframingsupportingtheExoTecTopHatcanmoveduetocreep/deflectionintheslab.RefertoFigure24forasuitabledetailforhorizontaldeflection.SeeTable5fortheflashingoverlapsrequired.

Note:Theprojectengineerisresponsibleforspecifyingtheamountofanticipatedmovement/deflection.


7 Junctions

7.1 SLAB JUNCTIONSWhenjointingtwodifferentbuildingmaterialsthedifferentexpansionandcontractionratesofthematerialsmustbeconsidered.

7.2 HEADWhereExoTecFaçadePanelbuttsintoanexposedslab,thedetailmustallowforsufficientcreep/deflectionexpectedintheslab.RefertoClause6.6.2forcreep/deflectionwhereExoTecTopHatcrossesinfrontoftheslab.

RefertoFigure27fortypicaldetail,whichcancaterforthisdeflection.

7.3 BASEExoTecBaseMouldisfittedattherainscreencavitybasetoallowformoisturedrainageandventilationrequiredforthecavity.InasoffitapplicationthebasemouldmustlapundertheRABBoard/buildingunderlayorthebasemouldupstandmustbetapedtotheRABBoard/buildingunderlaytotransferthemoisturetotheexterior.RefertoFigure18.

Note:ItisessentialthatacontinuousbasemouldflashingisprovidedbehindtheExoTecFaçadePanelatthebaseofthefaçadetoallowfordrainage/ventilationandtoformverminproofing.

7.4 SOFFIT JUNCTIONTherearemanywaysofdetailingthesoffitjunctionanditisimportanttoensurethat15mmminimumdripedgeisformed.

AtypicalmethodtoinstallasoffitfasciajunctionisshowninFigure18.EnsuretheExoTecBaseMouldisfittedatthebottomoffaçadecavity.

7.5 ABUTMENTSTherearedifferentmethodsoffinishingpanelsagainstanothercladdingsystem.AtypicaldetailisshowninFigure26.

8 CornersAnexternal/internalcornerisconstructedusingExoTecTopHatCornerFlashinginthecornerfittedoverExoTecIntermediateTopHatsectionononesideandtoExoTecFaçadePanelontheotherside.RefertoFigures11,12and13.

Whenacornerwithasmallradiusisrequired,itcanbemadeusingapurposemademetalflashingoraGlassReinforcementCement(GRC)tosuitthesiterequirementsandissuppliedbyothermanufacturers.

Note:TheExoTecIntermediateTopHatsectionbehindthecornerflashingcanbeomittedwhensuitableframingisnotavailableinthecornertofixTopHatsection.

9 Windows

TheExoTecFaçadePanelTopHatRainscreensystemprovidesanopportunitytoconsiderawiderangeofalternativewindowopeningtreatments.Thespecifier/designer,inconjunctionwiththewindowmanufacturer,mustconsidertoachieveaneffectiveweatherproofingofthewindow/dooropenings.Also,refertomoisturemanagementrequirementsinClause2.5forfurtherinformation.

ThetypicalgenericwindowdetailsareshowninFigures14,15,16and17.

10 Special details

10.1 CURVED FAÇADESWherethecurveradiusis10morgreater,ExoTecFaçadePanelcanbebenttosuitthecurveoftheframing.RefertoTable6formaximumExoTecTopHatspacing.

Table6MaximumExoTecTopHatspacingforcurvedapplications

Radii(m)

Max ExoTec Top Hat Spacing(mm)

10to15 400

>15 600max.ortosuitwindpressuresasperTable1

Notes:

1.ExoTecFaçadePanelmustbefixedhorizontallytotheExoTecTopHatsections.

2.ThecloserthespacingofExoTecTopHats,thelesslikelytheywillreadthroughthepanels,particularlyatsmallradii.

3.Incurvedapplications,alwayscommencefixingofpanelsfromthecentreandworkoutwardstoavoid“drumminess”.

10.2 PARAPET CAPPINGThedesignofthemetalparapetcappingshouldaimtoprovideweathertightnessandminimisethestainingofcladding.Followthefollowingrecommendations;

1.TheflashingmustoverlapthecladdingbyaminimumdistanceasspecifiedinTable5.

2.Ensuretheparapetcappinghasaslopetowardstheroof.

3.Provideadripedgeawayfromthecladdingface.

4.Inaddition,cappingsmustbelappedatajunctionaspertheTable7belowandalljointsincappingshouldbesealed.RefertoTable7fortherequiredjointoverlap,


Table7Parapetcappingjointoverlap

Max.DesignWindPressureUpto(kPaULS)

2.0 3.5 5.0

Min.CappingOverlap(mm) 50 100 150

Note:Forpermissibledesignwindpressure,divideULSwindpressureby1.5.

10.3 INSPECTIONAftertheinstallationofExoTecFaçadePanelsandbeforethepainting,thefaçade/fasciashouldbeinspectedtoensure:

1.Requirednumberandlocationoffixingsarecorrect.

2.Sealantisappliedwherespecified.

3.Theepoxyfillersisfilledinthescrewholesandsandedsmoothtofinishflushwithpanelsurface.

4.Minordamagetopaneledgescanbefilledwithepoxy,sandedsmoothandpainted,seeSection11.

11 Finishes11.1 GENERALToensurethedurabilityofExoTecFaçadePanelsasperClause14.5isachieved,thepanelsmustbepaintedwithin90daysofinstallation.

ExoTecFaçadePanelswillreadilyacceptawidevarietyofappliedfinishes,includingsiteappliedcoatingsandthefactoryappliedspecialfinishes.

Forsite-appliedfinishes(acryliccoatings),followthepaintmanufacturer’srecommendations.Itisrecommendedthatthepaintswithaminimumdft150micronbeused.

Allsitecutedgesorsandedpatchesonpanelsurfacemustbeprimedaftercuttingorsanding.Thefaceandedgesofthepanelsmustbecoatedinaccordancewiththepaintmanufacturer’srecommendations.AlsorefertoClause5.3.

Forfurtherinformation,contactthecustomerservicecentreoftherelevantpaintcompany.

Polyurethanepaintsarenotsuitableasasite-appliedfinishbutcanbefactorycoatedpriortoinstallation.Pre-finishedpanelsaregenerallyinstalledusingexposedheadfastenerscoatedinthesamecolour.

11.2 PANELS EXPOSED TO DIRECT SUNLIGHT Thefrontprimedorrearsealedfaceofthepanelsmustnotbeexposedtodirectsunlightforanyperiodgreaterthan90days.Thefacemustbeover-coatedwithasuitableprimerasrecommendedbythepaintmanufacturerwhenexposedtodurationsmorethan90days.However,iftherearclearsealeristobeexposedtodirectsunlightbyitsapplication,e.g.useinfascias,plantrooms,etc.thentheclearsealermustbecoatedwithaminimumofonecoatofanexteriorgradeacrylic,pigmentedwhite.

12 Storage and handling

Allmaterialsshouldbestoredtoavoiddamage,withedgesandcornersofthepanelsprotectedfromchipping.

ExoTecFaçadePanelsmustbeprotectedfromrainduringtransportandstorage.ThepanelsandExoTecTopHatsectionsmustbelaidflatundercoveronasmoothlevelsurfaceclearofthegroundtoavoidexposuretowaterormoistureetc.ExoTecFaçadePanelsandExoTecTopHatsectionsareresistanttopermanentwaterdamagewheninstalledasdirected.Thepanelsmustonlybeinstalledinadrystate.

WhenhandlingExoTecFaçadePanels,carrypanelsontheedgetakingcarenottochipedgesandcorners.

RefertotheClause15forrecommendedSafeWorkingPractices.

ExoTecTopHatsectionsandothermetalaccessoriesmustbehandledwithutmostcareduringtransportationandatsitestoavoidanypersonalinjuriesandtoachievethebestpossiblepanelflatness.

ExoTecTopHatsectionsandmetalaccessoriesmustbehandledwhilewearinggloves.

13 MaintenanceItistheresponsibilityofthespecifiertodeterminenormalmaintenancerequirementstomaintaintheeffectivenessofthecladding.Theextentandnatureofmaintenancerequiredwilldependonthegeographicallocationandexposureofthebuilding.

Asaguide,itisrecommendedthatthebasicnormalmaintenancetasksshallinclude,butnotbelimitedto:

• Washingdownexteriorsurfacesevery6-12months*.

• Re-coatingexteriorprotectivefinishes**.

• RegularinspectionandrepairifnecessaryofExoTecFaçadePanels,sealantsetc.

• Cleaningoutgutters,downpipesandoverflowpipesasrequired.

• PruningbackvegetationwhichisclosetoortouchingthebuildingaswellasensuringtheNZBCgroundclearancerequirementsaremaintainedespeciallywheregardensareconcerned.

• TheclearancebetweenthebottomedgeofExoTecFaçadePanelandthefinished/unfinishedgroundmustalwaysbemaintained.

• Refillingthecountersunkholeswherethecracksstartappearingin the paint film around epoxy fillers or where fastener readthroughbecomessignificant.

*Donotuseawaterblastertowashdownthecladding.

**Refertothepaintmanufacturerforwashingdownandrecoatingrequirementsrelatedtoongoingpaintperformance.


14 Product information

14.1 MANUFACTURING AND CLASSIFICATIONExoTecFaçadePanelsarehighqualitycompressed,autoclaved,cementbasedbuildingpanelsmanufacturedbyJamesHardie.RABBoardisamediumdensityautoclavedcellulosefibrereinforcedcementbasedbuildingproduct.

ThebasiccompositionoftheseproductsisPortlandcement,sand,cellulosefibreandwater.Theseproductsareidentifiedbythenameprintedatregularintervalsonthebackface.

JamesHardiebuildingproductsaremanufacturedtoAustralian/NewZealandStandardAS/NZS2908.2‘Cellulose-CementProducts’(ISO8336‘Fibre-CementFlatSheet’).JamesHardieNewZealandLimitedisanISO9001‘Telarc’certifiedmanufacturer.

ExoTecFaçadePanelisclassifiedTypeA,Category3inaccordancewithAS/NZS2908.2(ISO8336).

14.2 PRODUCT MASSThenominaldensityofExoTecFaçadePanelis1552kg/m3atEMC.

ThenominaldensityofRABBoardis1300kg/m3.Forpanelsizes,seeClause14.3and14.4Section16.

14.3 EXOTEC FAÇADE PANEL ExoTecFaçadePanelismanufacturedtohavethenominalsizesasoutlinedinTable8below.

Table8ExoTecFaçadePanelproperties

Properties Equilibrium Condition

Width 1190mm

Length 2400mmor3000mm

Approx.Mass 17kg/m2

14.4 EXOTEC TOP HAT SECTIONExoTecTopHatsectionsaremanufacturedofsteelgrade'G300'andiscoatedwithA2150coating.Thesectionsare1.15mmthick.

14.5 RAB BOARDRABBoardismanufacturedtohavethepropertiesandsizesasoutlinedinTable9below.

Table9RABBoardproperties

Properties EMC Condition

Width 1200mm

Length 2400,3000mm

App.Mass 8.5kg/m2

14.6 DURABILITYExoTecFaçadePanelsandRABBoard,wheninstalledandmaintainedasperthistechnicalspecification,willmeetthedurabilityrequirementsof‘Durability’ClauseB2ofNZBC.

14.7 RESISTANCE TO MOISTURE/ROTTING ExoTecFaçadePanelhasdemonstratedresistancetopermanentmoistureinduceddeterioration(rotting)andhaspassedthefollowingtestsinaccordancewithAS/NZS2908.2

• WaterPermeability(Clause8.2.2)

• WarmWater(Clause8.2.4)

• HeatRain(Clause6.5)

• SoakDry(Clause8.2.5)

14.8 RESISTANCE TO FIREExoTecFaçadePanelisdeemedtobeanon-combustiblematerialinaccordancewithAS1530Part1.ThepanelhasbeentestedbyCSIROandhasthefollowingEarlyFireHazardIndices(testedtoAS1530Part3).

Earlyfirehazardindicies

Flammability(FI) 0

SpreadofFlameIndex(SFD) 0

HeatEvolvedIndex 0

SmokeDevelopedIndex(SDI) 0–1

14.9 ALPINE REGIONSInregionssubjecttofreeze/thawconditions,ExoTecFaçadePanelmustnotbeindirectcontactwithsnowand/oricebuildup,e.g.externalwallsinalpineregionssubjecttosnowdriftsoverwinter.

ExoTecFaçadePanelandRABBoardhavebeentestedforresistancetofrostinaccordancewithAS/NZS2908.2Clause8.2.3.


WARNING — DO NOT BREATHE DUST AND CUT ONLY IN WELL VENTILATED AREAJamesHardieproductscontainsand,asourceofrespirablecrystallinesilicawhichisconsideredbysomeinternationalauthoritiestobeacauseofcancerfromsomeoccupationalsources.Breathingexcessiveamountsofrespirablesilicadustcanalsocauseadisablingandpotentiallyfatallungdiseasecalledsilicosis,andhasbeenlinkedwithotherdiseases.Somestudiessuggestsmokingmayincreasetheserisks.Duringinstallationorhandling:(1)workinoutdoorareaswithampleventilation;(2)minimisedustwhencuttingbyusingeither‘ScoreandSnap’knife,fibrecementshearsor,wherenotfeasible,useaHardieBlade™SawBladeanddust-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.

15 Safe working practice

JamesHardierecommendedsafeworkingpractices

Cutting Outdoors

1.Positioncuttingstationsothatwindwillblowdustawayfromuserorothersinworkingarea.

2.UseadustreducingcircularsawequippedwithHardieBlade™SawBladeandHEPAvacuumextraction

Sanding/Drilling/Other Machining

Whensanding,drillingormachiningyoushouldalwayswearaP1orP2dustmaskandwarnothersintheimmediatearea.

Important Notes:

1.NEVERuseapowersawindoors2.NEVERuseacircularsawbladethatdoesnotcarrythe

HardieBlade™logo3.NEVERdrysweep–UsewetsuppressionorHEPA

Vacuum4.NEVERusegrinders5.ALWAYSfollowtoolmanufacturer’ssafety

recommendations

P1orP2respiratorscanbeusedinconjunctionwithabovecuttingpracticestofurtherreducedustexposures.Additionalexposureinformationisavailableatwww.jameshardie.co.nztohelpyoudeterminethemostappropriatecuttingmethodforyourjobrequirements.Ifconcernstillexistsaboutexposurelevelsoryoudonotcomplywiththeabovepractices,youshouldalwaysconsultaqualifiedindustrialhygienistorcontactJamesHardieforfurtherinformation.

15.1.1 WORKING INSTRUCTIONSRefertorecommendedSafeWorkingPracticesbeforestartinganycuttingormachiningofproduct.

15.1.2 HARDIEBLADE™ SAW BLADE

TheHardieBlade™SawBladeusedwithadust-reducingsawfittedwithHEPAvacuumfilterisidealforfast,cleancuttingofJamesHardiefibrecementproducts.Adust-reducingsawusesadustdeflectororadustcollectorconnectedtoavacuumsystem.Whensawing,clampastraight-edgetothesheetasaguideandrunthesawbaseplatealongthestraightedgewhenmakingthecut.

15.1.3 HOLE-FORMINGFor smooth clean cut circular holes:Markthecentreoftheholeonthepanel.Pre-drilla‘pilot’hole.

Usingthepilotholeasaguide,cuttheholetotheappropriatediameterwithaholesawfittedtoaheavydutyelectricdrill.

For irregular holes:Smallrectangularorcircularholescanbecutbydrillingaseriesofsmallholesaroundtheperimeteroftheholethentappingoutthewastepiecefromthesheetface.Tapcarefullytoavoiddamagetopanel,ensuringthatthepaneledgesareproperlysupported.

15.1.4 HANDLING AND STORAGEAllmaterialsshouldbestoredtoavoiddamage,withedgesandcornersofthepanelsprotectedfromchipping.

ExoTecFaçadePanelsandExoTecTopHatsectionsmustbeprotectedfromrainduringtransportandstorage.Theymustbelaidflatundercoveronasmoothlevelsurfaceclearofthegroundtoavoidexposuretowaterormoistureetc.ExoTecFaçadePanelandRABBoardareresistanttopermanentwaterdamagewheninstalledasdirected,andmustonlybeinstalledinadrystate.WhenhandlingExoTecFaçadePanelandRABBoard,carrypanelsontheedgetakingcarenottochipedgesandcorners.

15.1.5 QUALITYJamesHardieconductsstringentqualitycheckstoensurethatanyproductmanufacturedfallswithinourqualityspectrum.Itistheresponsibilityofthebuildertoensurethattheproductmeetsaestheticrequirementsbeforeinstallation.JamesHardiewillnotberesponsibleforrectifyingobviousaestheticsurfacevariationsfollowinginstallation.


ExoTecFaçadePanelinformation

Product Description Size

ExoTecFaçadePanelDensecompressedpanel.Squareedge.Factorysealedonallsixsides.Eachpanelhasadistinctivewhiteface,whichacceptsawiderangeofpaintfinishes.Thepanelmustbeinstalledwiththewhitesidefacingtheexteriorofthestructure.

Length(mm)

ExoTec Façade Panel 9mm

1190mm Width Code

2400 ✓ 402282

3000 ✓ 402284

RABBoardUsedasrigidairbarrierbehindthebuildingfaçades.Thegreensurfaceisfixedfacingthecavity.

Length(mm)

RAB Board 6mm

1200mm Width Code

2450 ✓ 402980

3000 ✓ 402981

16 Product and accessories


AccessoriessuppliedbyJamesHardie

Accessiories Description Quantity/Size(Approx)

ExoTecTopHatProprietaryrolledzincalumcoatedAZ150steelsections124mmwidex35mmdeepx1.15mmthick.Designedtospanverticallyacrossthebuildingstructuretosupportthepanelsalongverticalpaneljointsandisolatemovementofthepanelsfromthoseofthestructure.

4800mmlengthsCode:304580

ExoTecIntermediateTopHatRolledzincalumcoatedAZ150steelsections50mmwidex35mmdeepx1.15mmthick,designedtospanverticallyacrossthebuildingsupportstructuresandtobeusedasintermediatesupporttothepanels.

4800mmlengthCode:304581

ExoTecGasketSnapStripBlacksealingNeopreneGaskets.SpeciallydesignedtoclipintotheExoTecTopHatatverticalsheetjointstocoverfixingstothestructureandtoprovideaninitialweathersealanddrainage.


ExoTecTopHatCornerFlashingPressedmetalzincalumcoatedSection0.95mmthick.Usedininternalandexternalcornerdetails.


ExoTecTopHatJMouldUsedatbuttjointswithothermaterialslikeconcreteormasonry.


ExoTecTopHatBaseMouldTobeusedtocloseoffthecavityatthebase


Aluminium‘T’Socket1.2mmthickaluminiumextrudedetchprimedhorizontaljointflashing.

2400mmlengthsCode:3041053000mmlengthsCode:304103

ExoTecFaçadeWasherOpaquenylonwasherfitsbeneaththeappropriateexposedheadfastenersandExoTecFaçadePanels.TheExoTecFaçadeWashersarefittedintheholesmadeforfixingtheexposedheadfasteners.

Packof1000Code:302761

Tools

HardieBlade™SawBladeDiamondtip185mmdiameterfibrecementcircularsawblade.Spacersnotincluded.

EachCode:300660

TungstenCarbideDrillBitUsedfordrillingholesforfixingthecountersunkfasteners.

EachCode:300567


Accessories/toolsnotsuppliedbyJamesHardie

JamesHardierecommendsthefollowingproductsforuseinconjunctionwithExoTecFaçadePanelSystem.JamesHardiedoesnotsupplytheseproductsanddoesnotprovideawarrantyfortheiruse.Pleasecontactcomponentmanufacturerforinformationontheirwarrantiesandfurtherinformationontheirproducts.

Product Description

BuildingUnderlayMustcomplywithTable23ofE2/AS1ofNZBC.

JointSealingTapeUsedtosealtheverticaljointsofRABBoard.e.g.Protecto,ThermakraftorTyvek®

BondBreakerTapeUsedwhenfillingverticaljointstopreventsealantfrombondingtotophat.

6mmMasonryDrillUsedtopre-drillholesforexposedheadfasteners.

Bostik-‘SealNFlex-1’AdhesiveorSikaflex11FCAdhesivePolyurethaneadhesiverequiredtogluetheAluminium‘T’Sockettopanels.Canalsobeusedtofilltheexpressedjointsforwindpressuresabove4.0kPa.

EpoxyFlushSealing(2Part)CountersunkscrewholesareflushsealedusingHiltiCA273,NuplexFairingCreamorsimilarepoxy.

EpoxyApplicatorArecommendedmethodoffixingtheepoxyovercountersunkscrewheads.Thismethodminimisesthespreadingofepoxyoverpanelsurface.

FlexibleTapeAflexibleself-adhesivetapeusedinpreparationofawindow.Refertothewindowinstallationsectioninthismanualformoreinformation.e.g.Protecto,ThermakraftorTyvek®

Fasteners

CountersunkFasteners10gx30mmcountersunkheadselfdrillingscrews–Class4coatingFastenersmustbefullycompatiblewithallothermaterialthatitisincontactwithtoensurethedurabilityandintegrityofassembly.SuppliedbyEDLFasteners Code:34C101630CL4

WaferHead/PanheadFastener10gx30mmwafer/panheadscrew–Class4coatingSuppliedbyEDLFasteners Code:34W101630CL4

HexHeadScrewForfixingExoTecTopHatsectionsintotheframingsubstrate.ReferTable3tocheckdesigncapacityofthefastenerrequired.Choseafastenersuitabletowithstandwindpressures.SuppliedbyEDLFasteners Code:34621450NCL4

PaintsandPrimers

UseDuluxAcraPrime501/1primerorDuluxPrimercryltosealthecutedgesofpanels.Usequalitypaintsonly.Refertomanufacturerforfurtherinformation.

TYVEK®FLEXWRAP™aretrademarksregisteredtoDupont


17 Details

VariousdetailsoutlinedinthefollowingtableareavailableonPages17to31.

Details

Description Figure Page

HorizontalLayoutBrickGridPattern Figure1 17

VerticalLayoutBrickGridPattern Figure2 17

TypicalPanelandFramingLayout Figure3 18

WallBaseTypicalDetail Figure4 18

TopHatandPanelFixingDetail Figure5 19

CountersunkFastenerDetail Figure6 19

VerticalPanelJointDetail Figure7 20

PanelJointsinHighWindPressureAreasDetail Figure8 20

ExposedHeadFastenerDetail Figure9 21

ExoTecFaçadeWasherDetail Figure10 21

InternalCornerDetail Figure11 22

ExternalCornerDetail Figure12 23

AngledExternalCornerDetail Figure13 24

CommercialWindowSillDetail Figure14 25

CommercialWindowJambDetail Figure15 25

CommercialWindowJambDetailUsing‘J’Mould Figure16 26

CommercialWindowHeadDetail Figure17 26

TypicalSoffitDetail Figure18 27

HorizontalPanelJointDetailatMidFloorHeight Figure19 27

InstallingUpperPanelOverAluminium‘T’Socket Figure20 28

SealingAluminium‘T’SockettoExoTecTopHatSection Figure21 28

VerticalJointTerminatingovertheHorizontalJoint Figure22 29

SealingAluminium‘T’SockettoExoTecTopHat Figure23 29

HorizontalStructuralJointDetail Figure24 30

VerticalStructuralJointDetail Figure25 30

ExoTecFaçadePanelandMasonryWallAbutmentDetail Figure26 31

WallJunctionUnderConcreteSlabDetail Figure27 31

16 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand 17ExoTec™FaçadePanel-TopHatRainscreen,Technical Specification February 2013NewZealand17

Figure1:Horizontallayoutbrickgridpattern

Figure2:Verticallayoutbrickgridpattern

18 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand18 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand

Figure3:Typicalpanelandframinglayout

Figure4:Wallbasetypicaldetail

18 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand 1918 ExoTec™ Façade Panel — Top Hat Rainscreen Technical Specification February 2013 New Zealand

Figure5:TopHatandpanelfixingdetail

Figure6:Countersunkfastenerdetail


Figure8:Paneljointsinhighwindpressureareasdetail

Figure7:Verticalpaneljointdetail


Figure9:Exposedheadfastenerdetail

Figure10:ExoTecFaçadewasherdetail


Figure11:Internalcornerdetail


Figure12:Externalcornerdetail


Figure13:Angledexternalcornerdetail


Figure14:Commercialwindowsilldetail

Figure15:Commercialwindowjambdetail


Figure17:Commercialwindowheaddetail

Figure16:Commercialwindowjambdetailusing‘J’mould


Figure19:Horizontalpaneljointdetailatmidfloorheight

Figure18:Typicalsoffitdetail


Figure21:Sealingaluminium‘T’sockettoExoTecTopHatsection

Figure20:Installingupperpaneloveraluminium‘T’socket


Figure22:Verticaljointterminatingoverthehorizontaljoint

Figure23:Sealingaluminium‘T’sockettoExoTec™TopHat


Figure24:Horizontalstructuraljointdetail

Figure25:Verticalstructuraljointdetail


Figure26:ExoTecFaçadePanelandmasonrywallabutment

Figure27:Walljunctionunderconcreteslabdetail

Notes



Disclaimer:TherecommendationsinJamesHardie’sliteraturearebasedongoodbuildingpractice,butarenotanexhaustivestatementofallrelevantinformationandaresubjecttoconditions(c),(d),(f)and(g)above.JamesHardiehastestedtheperformanceoftheExoTec™FaçadePanelandRAB™BoardwheninstalledinaccordancewiththeExoTec™FaçadePanelandTopHatTechnicalSpecification,inaccordancewiththestandardsandverificationmethodsrequiredbytheNZBCandthosetestresultsdemonstratetheproductcomplieswiththeperformancecriteriaestablishedbytheNZBC.However,asthesuccessfulperformanceoftherelevantsystemdependsonnumerousfactorsoutsidethecontrolofJamesHardie(e.g.qualityofworkmanshipanddesign),JamesHardieshallnotbeliablefortherecommendationsmadeinitsliteratureandtheperformanceoftherelevantsystem,includingitssuitabilityforanypurposeorabilitytosatisfytherelevantprovisionsoftheNZBC,regulationsandstandards,itistheresponsibilityofthebuildingdesignertoensurethatthedetailsandrecommendationsprovidedintherelevantJamesHardieinstallationmanualaresuitablefortheintendedprojectandthatspecificdesignisconductedwhereappropriate.

JamesHardieNewZealandLimited(“JamesHardie”)warrantsforaperiodof15yearsfromthedateofpurchasethattheExoTec™FaçadePanelandRAB™Board(the“Product”),willbefreefromdefectsduetodefectivefactoryworkmanshipormaterialsand,subjecttocompliancewiththeconditionsbelow,willberesistanttocracking,rotting,fireanddamagefromtermiteattackstotheextentsetoutinJamesHardie’srelevantpublishedliteraturecurrentatthetimeofinstallation.JamesHardiewarrantsforaperiodof15yearsfromthedateofpurchasethattheaccessoriessuppliedbyJamesHardiewillbefreefromdefectsduetodefectivefactoryworkmanshipormaterials.

NothinginthisdocumentshallexcludeormodifyanylegalrightsacustomermayhaveundertheConsumerGuaranteesActorotherwisewhichcannotbeexcludedormodifiedatlaw.

CONDITIONS OF WARRANTY: Thewarrantyisstrictlysubjecttothefollowingconditions:

a) JamesHardiewillnotbeliableforbreachofwarrantyunlesstheclaimantprovidesproofofpurchaseandmakesawrittenclaimeitherwithin30daysafterthedefectwouldhavebecomereasonablyapparentor,ifthedefectwasreasonablyapparentpriortoinstallation,thentheclaimmustbemadepriortoinstallation.

b) Thiswarrantyisnottransferable.

c) TheProductmustbeinstalledandmaintainedstrictlyinaccordancewiththerelevantJamesHardieliteraturecurrentatthetimeofinstallationandmustbeinstalledinconjunctionwiththecomponentsorproductsspecifiedintheliterature.Further,allotherproducts,includingcoatingandjointingsystems,appliedtoorusedinconjunctionwiththeProductmustbeappliedorinstalledandmaintainedstrictlyinaccordancewiththerelevantmanufacturer’sinstructionsandgoodtradepractice.

d) TheprojectmustbedesignedandconstructedinstrictcompliancewithallrelevantprovisionsofthecurrentNewZealandBuildingCode(“NZBC”),regulationsandstandards.

e) Theclaimant’ssoleremedyforbreachofwarrantyis(atJamesHardie’soption)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.

CopyrightApril2019.©JamesHardieNewZealandLimited.TMand®denotesaTrademarkorRegisteredMarkownedbyJamesHardieTechnologyLimited.

Product Warranty

Ask James HardieTM I Call 0800 808 868 I jameshardie.co.nz

FACADE PANEL

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top hat rainscreen technical specification · a cavity must not restrict ventilation or drainage of...

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