External Venetian Blinds aluminium louvres

1. SURESHADE® Externalmotorisedoperableandretractablealuminiumlouvres (externalvenetianblinds) Anoverviewofavailableproducttypes &constructionspecifications External venetian blindshavebeen globallytested and universallyfoundtobethe best method ofreflectingsolarheat, while atthesametime,allowingnaturallight,throughthe glazing(windows). Thepercentage of solarheatreflectedbytheseexternalvenetianblindsisdependent uponthereflectivity oftheslatcolourwiththecoloursmostreflective,silverandwhite, resultinginan 87% decrease ofsolar heatentering through the glazing. The current external venetian blinds allow natural light to penetrate through the glazing while removing the solar heat and solar glare and are, in this regard, unique to all other shadebuilding products. Othermethods ofsolar heatminimisationusedin oronglazing ;reflectivefilm,e glass, nanoparticlesurfacing,singletint and doubletintetc.canonlyachievepartial success to the detrimentotheraspects ofglazing.All such methodspermanentlydegrade light transmission,diminishthenaturalinternallightlevels (lux measurement)insidethe buildingandfailtoovercomethecentralissue,that ofremovingthesolarheatbefore theglazingand frames. Inexcessof2millionexternalvenetianblinds are soldannually in Europe,andtodate,in AustraliaEuropeanmodelshaveeitherbeen fullyimported or copiedandassembled. HowevertheEuropeanmarkethasacceptedthattheblindsshouldbefullyretracted in moderate velocitywindsasEuropedoesnothave theexperience of highwindand summerheatand theEuropean marketis alsomostinterestedin heat loseratherthan heat gain. Accordingly,todate,allexternalvenetianblindsarefittedwithwindvelocity sensorswhich causetheblindto be retracted in moderatewinds and fortheAustralianmarketthis is and continuestobeamajorissue.AnnuallyAustraliancoastalwindvelocity conditionsare veryseldom calm.Inthe Sydneymetropolitanarea (otherlocationsspecificationsare available)annuallythere is greaterthana 20%chancethat a windvelocityof greaterthan 30kph will occurfromthe NWandNEand a15% chance fromtheWandEand these windvelocities aremostoften coupledwith“windgusts”wellinexcessof 30kph.In summertheprobabilityfora windvelocityin excessof 30kphincreasesto40%fromthe NE.

2. Europeandesignedexternalvenetianblindunits are notengineeredtoprovidewind stabilityatthesevelocitiesandsubsequenttoofficialSwisswindtestingallexternal venetianblindsareprovidedwithananemometer(windsensor)toretracttheexternal venetian blindatwind velocities greater than 30-40 kph. HowevergivenAustralianhighvelocity windgust conditionsofgreaterthan40kphandthe timeforan externalvenetianblindtoretract ofapproximately60secondsthewindsensor shouldbesetto retractata windspeed ofless than30kph toprevent damageshouldthe windgusttobeyond40kph.Given this,thatcouldequateto theexternalvenetianblind fully retracted in morethan 20% of the time that the Australian solar radiation is at the mostextreme level. Nowthere is anAustralianproduct,theSURE SHADE®ULTIMATE120S external motorised operableretractablealuminiumlouvre,aworldfirstengineereddesign granteda testedAustralianpatent. Developed,engineeredandmanufacturedinAustraliafortheAustralianclimatic conditionofhighwindloadingand highsolarheatthatmaynotrequire awind sensorunder normalAustralianwindload conditions. In summary,globallytheexternalvenetianblind industryhasevolvedslowlyfrominternal venetian blinddesignsand canbe dividedintothree (3)categoriesofinnovationand product engineeringtoreflectthecapacity oftheblindtocopewithAustralianwindvelocity loadings, from Category 1, the least capable to Category 3 the most capable. All these profiles arenowmanufacturedinAustralia bySURESHADE® : Category1Basicwindloadingmodels Category2Superiorwindloadingmodels Category3Ultimatewindloading models Page8of22

3. Category1 Basicwindloadingmodels A/ Ladder braid slat control B/ Wiresideguides or C/ Extrudedaluminiumsideguideswithplastic run railinserts& Zamacsidepins D/ Extrudedaluminiumbottomrail :end caps & eyewire/sidepin316stainlesssteel Models :SURE SHADE®Basic100FL3W & SURESHADE®Basic80C L1W &SURESHADE®Basic80C L1E Basicwindloading models useladderbraid tocontrol theslatorlouvreandthisladder braidmethodologyistakendirectlyfrominternalvenetianblinds.Theladderbraidis a wovenpolyesterwithextrudedladderstringsonwhichtheblindslatis eitherrestedupon or placedbetween.Theblind slatis thentilted bymovingtheladderstringeitherupor downbymeansofa bearing andmotor. Thedisadvantage ofladderbraid is that thepolyesterfibresstretchwhich causes thetop blindslatsto be closedwhilethebottomblindslatsare notandthereforeuneven solar heatreflectingandlightpenetration is presentintheblind.Thisdisadvantage can be overcomeby addingkevlar/aramid,nonstretchfibres,intotheladderbraid.Howeverall suchreinforcedladderbraidarenot of equal quality.Thekevlar/aramidpolymeris extremely“slippery”and topreventtheladderbraidfromslippingfromthekevlar/armid stringverytechnicalweaving methodshaveto be employedotherwisetheresultisnot stable and the ladderbraid willstill stretchovertime asthebraidslipsfromthe kevlar/aramid.Unlessthekevlar/aramidreinforcinghasbeendoubleoverlockedbefore beingintroducedintotheladderbraidweavingprocessandthenagainoverlockedwithin the polyester ladderbraidduringweaving theladder braidwillstill stretch. Thefixing oftheblindslattotheladderbraidandladderstring is achievedbya numberof methods yetunfortunatelythere is no guaranteedmethodtoprevent theblind slat from slippingaroundtheladderstringeitherbecause of windloadingor braidstretching. All wireguides arenotofequal:wireguidecable is eitheruntreated,galvanised or stainlesssteel. GivenAustralia'shighlycorrosivecoastalsaltairandhumidityrustisa major issueALLSURE SHADE®blindwireguidesarestainlesssteel polymercoatedfor bothblindand surface abrasion resistance. SURESHADE®wireguide is coatedwith thehighperformancesuperior polymerPA12 whichfeatureshightoughness,veryhighresistancetogrease, oil, water,salinesolution& organicsolvents and stress cracking.Ithasa low coefficient of slidingfriction and hasa high abrasionresistanceevenwhenrunningdryand also hasnoise &vibrationdamping qualities. Page8of22

4. TheblindslatprofileSURESHADE®Basic100F is 100mm wide and can only be controlled byladderbraidand is manufacturedfrom a specialaluminium alloywhich providestheslatwithflexibility of movementunderwindload oruse. Theadvantages of theflexibleslatis that theslatisabletoabsorbimpact bydeflectingandrebound back to theoriginal convex shape. However this excessiveflexibilityofthe blind slathasa significantdrawback as the slatwillmovetoeitherrotatearoundtheladderstringordistortandflattenagainst theglazinginthewind causingexcessiveinstability,movement,noiseandblock outof light. Independentwind tunneltestinghasshown thatwhentheflexible alloyslatis installed inexcess of 150mmawayfromtheglazing windairpressurewillmovefromthe glazing backtowardstheunderside oftheslat(concave).Insucha casea wind speedinexcess of only 4 metrespersecond(14.4kph)willbuckle theBasic 100F slatoutwardsand cause excess instability,slat movementandsideto sidemovementwhichwill require interventionofthe installedwind sensor andblindslat retraction. Lackof slatrigidityalsonecessitatesthattheladderbraidbe closelyplacedalongthe length oftheblindslatastheslatflexibilitywillcausetheslatto sagif theladderbraidis spacedtoofarapart.Thesidetosidemovement control of theblind slatisachieved bya wire guided throughtheend ofeach slat,yetwire guidinghasmajor defects ; Page8of22

5. 1/ Wind loadingwill cause theblindwireguidetovibrate,resonateand shakethe blindslatscausingconsiderablenoise. (similar torigging on aboatin the wind) 2/ Duetothesingleconvex/concaveblindslat designlightblockandsunglarecannot beachieved withwireguideastherewillalwaysbeapproximately20%lightcoming through the slats even when the slatsare fullyclosed. 3/ Wind will causetheblindto swaysidewaysand move forwardand backwards hitting walls and the glazing when under windload. In summarytheSURESHADE®Basic100FL3 Woffers high solar heatblock outat a verycost effective pricewherewindloading,installeddistancefrom glazingandlightblock outisnotan issue. TheSURESHADE®Basic 80CL1 Wslatprofile is 80mmwideandisofamore robust construction andcanbemanufacturedto be morewindstableascomparedtothe100F. Howeverladderbraid80Cslatconstruction, underwindloading,willstillattempttorotate around theladderstring.Similarto100Fthe80Ccan also havesidewireguidesfitted whichallowsveryeasyfixingandminimalvisualobstruction butisnot windstable. Side wireguidesallowsignificantblind slatmovement,eitherfrontto back or sidetoside, duetotheinherentlyunstableengineering oftheblindslatand asmentionedregardless oftheblindprofilewireguideswhenunderwindloadingresonate(“sing”)andvibrate. Page8of22

6. TheSURESHADE®Basic 80CL1 Ecan gain somewind stabilitywhen wireguidance is replacedwithZamac pins,rivetedtoalternateslats(leftandright),whichengagewithan extrudedaluminiumsideguide.Theside guidehasplasticsideinsertstoreducenoiseand provideeasymovementyetthepossibility ofthe80Cslatrotatingintheladderstringis onlyreduced and cannotbe eliminated. Page8of22

7. Category2Superiorwind loadingmodels A/ Hagofix®slatcontrol, B/ Extruded aluminiumsideguideswithplastic run rail inserts C/ Zamacside pins D/ Extrudedaluminiumbottomrail :end caps & eyewire/sidepin316stainlesssteel Models:SURESHADE®Superior 80CH2E&SURESHADE®Superior 80CH2W The 80C slat with a4mm rollededgecanbe constructedwithoutladderbraidbyusing Hagofix®. TheHagofix®systemembeds astainlesssteelconnectorintotherollededge beading ofa blindslatand a spigotattachedto a kevlar/aramidtapeprovides extremely secureattachment andextensive slat anglecontrol.Theblind slat cannotswivelor slide withinthis fittingwhichprovides over allpositiveslatcontroland an inherentlystable externalvenetian blind product. When Hagofix®slat controlisused in conjunctionwithwireguiding oftheblindslats,the SURESHADESuperior80C H2Wa morepractical and useable solution canbe providedforapplicationswhere a less intrusiveblind stabilitysystemis requiredanda low windloading componentispresent. For greaterstable,secure and refinedoperationSURE SHADESuperior80CH2 Eslat canhavesidepins.ConstructedfromZamac sidepinsare an innovationforstabilisingand greatlyimproving the 80Cslatblind.Zamacisafamilyofalloyswitha basemetal of zinc and alloyingelementsofaluminium,magnesium and copper. Zamacpins aremechanicallyrivetedtoalternateslats(leftandright)whichengagewitha extrudedaluminiumsideguide.Theside guidehave aplasticsideinserttoreducenoise andprovide easeofslatmovement. When the80C slatisused withHagofix® ,side pins and extrudedaluminiumside guides the profile canbe made tobewindstableundermoderateloads,howeverthe single convex/concaveblindslatdesignof the80Ccannot offerlight and sunreflectiveglare blockoutwhenfullyclosed. Page8of22

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9. Category3Ultimate wind loading models A/ Windstableaerodynamicslatprofile B/ Hagofixslatcontrol,extrudedaluminiumsideguideswithplasticrun rails C/ Zamacside pins D/ Extrudedaluminiumbottomrail:end caps & eyewire/sidepin316stainlesssteel E/ Integrated sealingkeder formaximium light control F/ Integrated sealingkederforimprovedsoundinsulation Models:SURESHADE®Ultimate120SH3E&SURESHADE®Ultimate 120SH3W TheSURE SHADE®ULTIMATE120Sis a worldfirst engineereddesign,and carriesan worldwidetestedpatent and hasbeendeveloped and manufactured inAustraliaforthe Australianclimatic condition ofhigh wind loadingand high solar heat. 1/ TheSURESHADE®ULTIMATE120Sslatwind stabilityhasbeen enabled bya newevolutionarydesignthathasa slatwidthof120mmwhich allowsbothpositive (+)and negative(–) airpressure to balanced along the slat profile. Page8of22

10. A+ airpressure at twolocations,front and back,providesdownwardpressureof the blindslatratherthanupwardlift as for the100Fand 80Cslatprofiles.

11. 2/ The worldrenowned Hagofix®slat supportsystemof spigot tapewithstainless steelconnector has beenmodified and designedby SURE SHADE®.The size , metal propertiesanddesign ofthestainlesssteelconnectorhasbeendevelopedbySURE SHADE®toincreasethewindload capacityofthe systemand the distancebetween spigots has beenincreasedto107mm tosuitrotation ofthe larger slat.

12. 3/ TheSURE SHADE®Ultimate 120Sslatsize meetsAustralianexpectations of large viewingareasthroughwindowswhile stillmeetingtheEuropeanrequirementof allowing40%ofthe view whenproviding shadeata solarangleof20 degrees.TheSURE SHADE®Ultimate120S witha 120mmwideprofilehasmore open spacearea due to therebeingless slatsimpeding the view.

13. 4/ TheSURESHADE®ULTIMATE120Sprofile hasbeen designedto take partin theclimatedebatebyproviding ameans ofreducingpeakelectricalloadforallbuilding cooling,heatingandelectricalapplicationsbyreducingorincreasingof solarheattransfer intothebuildinginaprogressivemannerwhilestillmaximisingnaturallighttransferinto thebuilding. TheSURESHADE®ULTIMATE120Scanbe optionedtomovein anarcof 120degrees from 56to176degrees thatwillallow thecontrolof solar heatand thecapturingand reflecting ofmorninglightup to11metres intothe room whilepreserving aglarefreework environment atthewindow. The light is reflected bythe 120S slatupwardstowardstheceiling ata controlledangle andfromtherethelightreflectsdownwardstoprovideincreasedluminescenceup to11 metresintothe building. As the sun tracksfromeasttowesttheslatcanbeoptionedtoprogressivelyclosefrom 56 degrees to 135 degreesto reflectback solar heatand still allownaturallightintothe building.The blind slatcan alsoprovideconsiderablelightcontrolwhenfullyclosed. TheSURE SHADE®ULTIMATE120Sslatwillgreatlyassistincategorypointsrequired inAustralianGreenStarratingtoolcalculation asglazingthesinglegreatestbuilding productthatcapturesand radiatessolar heatintothebuilding.

14. The GreenStar ratingtoolhasnine(9) categories andtheSURESHADE®Ultimate 120Scanprovideorassistingainingpointsin thefollowing5 categories. There are currently 83 individual titles available in 9 categories of the Green Star rating tool and the SURE SHADE®Ultimate 120S product has direct input into 12 individual titlesthatcover5categories: Category Management Title BuildingManagementSystems Credit #Man-9PointsAvailable1 Category IEQ –IndoorEnvironmentalQuality

15. Category Energy GreenhouseGasEmissions PeakEnergyDemandReduction Credit#Ene-1PointsAvailable20 Credit#Ene-3PointsAvailable2 Title Category Materials Title DesignforDis-assembly Credit#MAT-8PointsAvailable1 Category Innovation Title InnovativeStrategies &TechnologiesCredit# Inn-1PointsAvailable2 Exceed Green Star Benchmarks EnvironmentalDesignInitiatives Pointsavailablefromthe12titles Totalpointsavailableinall9categories Credit#Inn-2PointsAvailable2 Credit#Inn-3PointsAvailable1 37 164 %ofpointstowhich theSURESHADE® Ultimate120Scancontribute 22.6% The following Green Starratings are available : GreenStar(score45-69)signifies“BestPractice”inenvironmentally sustainabledesign and/orconstruction. GreenStar(score60-74)signifies“AustralianExcellence”inenvironmentally sustainable designand/or construction. GreenStar(score75-100)signifies'WorldLeadership'inenvironmentallysustainable designand/or construction

16. 5/ TheSURE SHADE®Ultimate120Spelmet,verticalsandfittingshavebeen engineeredto meet thepressuresthat windKpaforcesgenerateunderAustralianwind conditions. Thepelmethasbeendesignedtospanover5metreswithoutintermediatefittingswhile stillmaintainingintegralrigidity andstructurenecessary toprovideastablestructurewithin tolerancesfor longevity ofthe bearings,motor and driveshaft. Slatextensionprofiles,100mmto200mm,that cover theretractedslatshavebeen engineeredtoprovidepositiveattachmenttothepelmetwiththecorrecttolerancesto allowclearance oftheslatfittingsand,forfutureservice,issimpleand quick toremove. The verticaltracksareavailableintwovarieties, FG#2and FG#4.Both are suitablefor singleordoubleslatinstallations.Itis essentialforthecorrectoperationof theslatsthat,

17. at alltimes,theverticaltrackremainsrigidandparalleltothepelmetstructureand accordingly theSureShadeextrusionsaredesignedwithintegralstrengthandrigidity. Forsituationsthatrequirethemaximiumwindtolerancewhenbuildingstructures arenot available or deficienttheSureShade40x80mmFG#4can spanover3.6metreswithout intermediatefittingswhilestillmaintainingintegralrigidityandstructure necessaryto provideastablestructurewithintolerancesforlongevity ofthebearings,motor,driveshaft andslat.

18. 6/ TheSURESHADE®Ultimate 120Scan bemanufactured withwire guides ifthe windloadingismoderateandaestheticsof minimialvisualobstructionisparamount.Since the 120Sslatisinherentlystable a higherwindloadingcan be accommodatedwhen compared to the 100For80C constructedwith wireguide. Howeverwedo not recommendwireguideforbothsidesof theblind.Thebestalternative isto havewireguide onlyonone sidewithstabilityoffered bya Zamac slatside pins engaged into an aluminium side guideextrusion on the other side. The intrinsicefficientslat shapealso ensuresthatwithwireguidingtheslatcanclose tightlyupon itself to3 degreeswhen in theclosedposition and minimiselight intrusion.

19. 7/ TheSURESHADE®Ultimate 120Scanbe optionedforsuntracking.The packageincludesanintermediatelogicinterfacecontrolboardmanufactured by Liftmaster®that allowscontinuousmonitoringof theangle oftheindividualblindslats. This meansthatthe buildingmanagementsystem(BMS) systemcan reliablyassume slat angleswithout theneedforextensivere-referencingthatoccursin current systems. (re-referencingincurrentEVBtrackingsolutionsresultsinmovingtheblind to afullopenpositionat determinedtimesduring theday ornightandthenreturning theblindtothe original position)