LYSAGHT ® TRIMDEK ® OPTIMA ™ Structural Solutions House Framing Solutions Roofing & Walling Solutions Subtle square fluted steel cladding with extra-wide span
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LYSAGHT® Trimdek® opTimA™
Structural Solutions House Framing Solutionsroofing & walling Solutions
Subtle square fluted steelcladding with extra-wide span
LYSAGHT®
Trimdek® opTimA™Subtle square fluted steel cladding with extra-wide span
Simple, low-coSt fixingLong, straight lengths of Lysaght® trimdek® optimatm can be lowered into place and aligned easily. Fixing with hexagon headed screws is simple and fast.
• Subtlesquareribsandflutedpanroofandwallcladdingarestrong,durableandversatile.
• Availableinlonglengthssoonecontinuoussheetmaybeusedfromridgetogutterorfullwalllengthswithoutendlaps.
• Theflutinginthepansprovidesstrengthandlongspanningcapabilities.
• Thestrength,spanningability,lightnessandrigidityofLysaght® trimdek® optimatmmeanswidesupportspacingscanbeusedwith safety.
• Longspanningcapacityallowscladdingtobeloweredintoplaceand easily aligned.
LYSAGHT® Trimdek® opTimA™2
Lysaght® trimdek® optimatmisasubtlesquare-flutedsteelcladding,availableinlonglengths,soonmostjobsyoucanhaveonesheet from ridge togutteror fullwallheightwithoutendlaps.
Lysaght® trimdek® optimatm is made of high strength steelanddespiteitslightness,providesexcellentspanningcapacity.
the strength, spanning ability, lightness and rigidity of Lysaght® trimdek® optimatm means wide supportspacingscanbeusedwithsafety.
finishes Base metal total coated thickness (mm) thickness (mm) kg/m kg/m2
ZiNCaLUme® steel 0.42 0.47 4.23 4.16Clean CoLoUrBoNd® steel 0.42 0.47 4.30 4.24ZiNCaLUme® steel 0.48 0.53 4.80 4.73Clean CoLoUrBoNd® steel 0.48 0.53 4.87 4.80
pRoDUct pRofilemateRial SpecificationSLysaght® trimdek® optimatm is made from:
•ZiNCaLUme®aluminium/zincalloy-coatedsteelcomplyingwithAS-1397-2001G550,AZ150 (550MPaminimumyield stress,150g/m2minimumcoating mass);
the Clean CoLorBoNd®steelcomplieswithAS/NZS2728:1997.
lengthSSheetsaresuppliedcustomcut.
toleRanceSLength:+0mm,-15mmWidth:+4mm,-4mm
1015mm
28.5mm
phYSical pRopeRtieS of lYSaght® tRimDeK® optimatm
Steel grade (mpa) g550 (550mpa minimum yield stress)
EffectiveWidthofCoverage 1015mm
DepthofRib 28.5mm
MinimumRecommendedRoofPitch 3°(1in20)
BaseMetalThickness 0.42mm,0.48mm
• Forroofs:thedataarebasedonfoot-trafficloading.• Forwalls:thedataarebasedonpressures(seewindpressurestable).• Tabledataarebasedonsupportsof1mmBMT. Basicwindspeed(StrengthLimitState)=57m/sec Terraincategoryco-efficient=0.83 Shieldingfactor=0.85 Topographyfactor=1 DesignwindspeedStrengthLimitState(withabovefactors)=40.2m/sec Basicwindspeed(StrengthLimitState)=40m/sec Terraincategoryco-efficient=1 Shieldingfactor=1 Topographyfactor=1 DesignwindspeedStrengthLimitState(withabovefactors)=40m/sec
wallsCpe=-0.65,Kl=2forsingleandendspans,Kl=1.5forinternalspansCpi=+0.20
RoofsCpe=-0.9,Kl=2forsingleandendspans,Kl=1.5forinternalspansCpi=+0.20
These spacings may vary by Serviceability and Strength Limit States forparticularprojects.
peRfoRmancemaximUm SUppoRt SpacingS
LYSAGHT® Trimdek® opTimA™ 3
coloURSLysaght® trimdek® optimatmisavailableinanattractiverangeofcoloursin Clean CoLorBoNd®steelandinunpaintedZiNCaLUme®aluminium/zinc alloy-coatedsteel.
ZiNCaLUme® steel provides a minimum of twice the life of conventionalgalvanisedsteelinthesameenvironment.
the standard Clean CoLorBoNd®steeloffersafull rangeofcontemporarycolours suitable for all building projects. Clean CoLorBoNd® Xpd steel providessuperioraestheticqualities,andCleanCoLorBoNd® ULtra steel is intendedforseverecoastalorindustrialenvironments.
minimUm Roof pitchLonglengthsandaspecialanti-capillarygrooveinthesidelapallowsyoutouseLysaght® trimdek® optimatmonroofpitchesaslowas3degrees(1in20).
lYSaght® SpanDeK® optimatm
type of span BaseMetalThickness(mm) 0.42 0.48TotalCoatingThickness(mm) 0.47 0.53
Roof (mm)SingleSpan 1200 1600EndSpan 1900 2100InternalSpan 2500 3000UnstiffenedOverhang 150 150StiffenedOverhang 250 250
walls (mm) SingleSpan 2200 2300EndSpan 2500 2700InternalSpan 3300 3300Overhang 150 150
peak rainfall Roof Slope (degrees)intensity (mm/hr) 3 4 5 7.5 10 100 275 310 342 408 469
150 183 207 228 272 313
200 138 155 171 204 235
250 110 124 137 163 188
300 92 103 114 136 156
400 69 78 86 102 117
500 55 62 68 82 94
penetrations will alter the flow of water on a roof. For assistance in design of roofswithpenetrations,pleaseseekadvicefromourinformationline.
maximUm Roof lengthS foR DRainage meaSUReD fRom RiDge to gUtteR (m)
lYSaght® tRimDeK® optimatm : limit State winD pReSSURe capacitieS (kpa)lYSaght® tRimDeK® optimatm 0.42mm Bmt / 0.47mm tct
for roofs (c/c) Span (mm)
Span fasteners per sheet 600 900 1200 1500 1800 2100 2400 2700 3000 3300
type per support
Single 5 Serviceability 4.89 3.88 2.91 2.04 1.30 0.75 0.41 0.24 0.19 -
Strength* 9.94 8.08 6.29 4.69 3.36 2.39 2.11 1.93 1.81 -
end 5 Serviceability 6.57 5.24 3.99 2.85 1.88 1.16 0.71 0.48 0.40 -
Strength* 9.40 8.08 6.80 5.60 4.52 3.60 2.87 2.29 1.81 -
internal 5 Serviceability 4.13 3.55 2.98 2.45 1.97 1.57 1.25 1.01 0.81 0.64
Strength* 10.18 8.69 7.25 5.90 4.71 3.71 3.09 2.53 2.00 1.49
lYSaght® tRimDeK® optimatm 0.48mm Bmt / 0.53mm tct
for roofs (c/c) Span (mm)
Span fasteners per sheet 600 900 1200 1500 1800 2100 2400 2700 3000 3300
type per support
Single 5 Serviceability 6.69 5.28 3.93 2.72 1.69 0.93 0.47 0.25 0.19 -
Strength* 11.27 9.04 6.91 5.02 3.47 2.39 2.35 2.30 2.24 -
end 5 Serviceability 7.79 6.25 4.79 3.46 2.33 1.47 0.93 0.64 0.52 0.49
Strength* 11.34 9.79 8.29 6.88 5.59 4.49 3.59 2.87 2.25 1.69
internal 5 Serviceability 5.93 4.99 4.08 3.24 2.51 1.91 1.48 1.17 0.95 0.78
Strength* 11.84 10.41 9.03 7.69 6.43 5.27 4.23 3.29 2.42 1.58
*Acapacityreductionfactorof0.9isappliedtostrengthcapacities. ThesecapacitiesarebasedontestsconductedatBlueScopeSteel’sNATAregisteredtestinglaboratoryusingadirectpressuretestingrig. Supportsmustnotbelessthan1mmBMT.
Punggol Junior College, Singapore
LYSAGHT® Trimdek® opTimA™4
limit StateS winD pReSSUReS
ThewindpressurecapacitiesarebasedontestsconductedatBlueScopeLysaght’sNATAregisteredtestinglaboratory.TestingwasconductedinaccordancewithAS1562.1-1992DesignandInstallationofSheetRoofandWallCladding-Metal,andAS4040.2-1992ResistancetoWindPressureforNon-cyclonicRegions.
The pressure capacities for serviceability are based on a deflection limit of(span/120)+(maximumfastenerpitch/30).
Thepressurecapacitiesforstrengthhavebeendeterminedbytestingthecladdingtofailure(ultimatecapacity).
Thesepressuresareapplicablewhenthecladdingisfixedtoaminimumof1.0mm,G550steel.
fasteners without insulation
fixing to steel fixing to steel fixing to timber up to 0.75mm Bmt >0.75mm to 3mm Bmt
Crestfixed Selfdrillingscrewswith Selfdrillingscrewswith Type17Selfdrillingscrews hex.washer-head&EPDMseal, hex.washer-head&EPDMseal, withhex.washer-head, 12-11x50 12-14x45 Softwood:12-11x65(M5.5-11x65) (M5.5-11x50) (M5.5-14x45) Hardwood:12-11x50(M5.5-11x50)
Valleyfixed Selfdrillingscrewswith Selfdrillingscrewswith Type17Selfdrillingscrews hex.washer-head&EPDMseal, hex.washer-head&EPDMseal, withhex.washer-head&EPDMseal 10-12x20(M4.8-12x20) 10-16x16 Softwood:10-12x30(M4.8-12x30) or (M4.8-16x16) Hardwood:10-12x20(M4.8-12x20) self drilling screws with hex.washer-head&EPDMseal, 10-16x16(M4.8-16x16)
Sidelap& Selfdrilling 10-16x16accessories hex. head screws with or washer&EPDMseal EPDMseal:8-15x15
faSteneRSLysaght® trimdek® optimatmrequires5fastenerspersheetpersupportasshownbelow.FastenersshouldcomplytoAS3566,Class3andClass4.
faStening SheetS to SUppoRtSLysaght® trimdek® optimatmprofileispierce-fixedtotimberorsteelsupports.Thismeansthatfastenerscrewspassthroughthesheeting.
YoucanplacefastenersforLysaght® trimdek® optimatmthroughthecrestsorinthepans.Tomaximisewatertightness,alwaysplacerooffastenersthroughthecrests.Forwalling,youmayuseeithercrest-orvalley-fixing.
Alwaysdrivethefastenersperpendiculartothesheeting,andinthecentreofthecorrugationorrib.Don’tplacefastenerslessthan25mmfromtheendsofsheets.
methoD Statement anD geneRal noteSwalKing on RoofSGenerally,keepyourweightevenlydistributedoverthesolesofbothfeettoavoidconcentratingyourweightoneitherheelsortoes.Alwayswearsmoothsoft-soledshoes;avoidribbedsolesthatpickupandholdsmallstones,swarfandotherobjects.
Whateverdirectionyouwalk,alwayswalkinthepans.Whenwalkingacrossthewidthoftheroof,walkover,orcloseto,theroofsupports.
LYSAGHT® Trimdek® opTimA™ 5
LYSAGHT® Trimdek® opTimA™6
Sheet profile min Radius (mm) max Radius (mm)
concave crimp curve
0.42mmBMT/0.47mmTCT 550 2000
0.48mmBMT/0.53mmTCT 560 2000
convex crimp curve
0.42mmBMT/0.47mmTCT 450 2000
0.48mmBMT/0.53mmTCT 470 2000
cURVingcrimp curved RoofCrimpcurvedLYSAGHT® trimdek®steelcladdingisdesignedtoprovideversatilityandcreativitytobringnewandrefreshingdesignstocommercial,industrial,civicanddomesticbuilding.Thisdesignfreedomhasresultedinsignificantcostsavingsinconstruction,mainlydueto:-
• Lesssupportingframeworkrequiredforfascias,parapetsandroofs.• Simplifiedandreducedworkinvolvedininstallationoffasciacladding.• Reductionoreliminationofmanyflashingandcappings.
SUppoRt SpacingS foR cRimp cURVeD lYSaght® tRimDeK® pRofile (non-cYclonic aReaS)
StRaight poRtion of cRimp cURVeD lYSaght® tRimDeK® pRofile:
• MaximumallowablespacingsforthestraightportionofcrimpcurvedLYSAGHT® trimdek®profileshouldfollowtherecommendationsgivenatMaximumSupportspacings table.
• Endspansrefertothespacingbetweenthefirstandsecondsupportsfromanyfreeendofasheet,exceptwherethatendofthesheetiscrimpcurve.• Thespacingbetweenthesupportseithersideofanendlapshouldbethatasrecommendedforendspans.
cRimp cURVeD poRtion of cRimp cURVeD lYSaght® tRimDeK® pRofile:
Thiswilldependontheradiusofcurvaturebutthefollowingguidelinesarerecommended:-• Forsheetscurvedtoaradiusofcurvaturenotmorethan3000mm,supportsshouldbeplacedatcentresnotgreaterthan2100mmmeasuringaroundthearcof
thecurve.•Whereacurveofsmallincludedangleoccurs(uptoapproximately15˚,forexampleataridge),supportspacingshouldnotexceed1200mm.
Lysaght® trimdek®
ProfileConcaveCrimpCurve
Lysaght® trimdek®
ProfileConvexCrimpCurve
LYSAGHT® Trimdek® opTimA™ 7
ReQUiRementS foR cRimp cURVeD lYSaght® tRimDeK® pRofile
•Minimumcurvatureradiusforconvexis450mmand550mmforconcavetoundersideorpanofsheet,minimumstraightlengthofsheetatoneendofcurveis180mm.
•Maximumlengthofsheetthatcanbecrimpcurvedforridgeapplicationisaproximately12000mm.Thecurvecaneitherbeconvexorconcave.
R450mm (min)
180mm (min)
100mm (min)
12,000mm (min)
LYSAGHT® Trimdek® opTimA™8
• Thesheetcanbecrimpcurvedtothreequartersoffullcirclebuttofacilitatesidelapping,semicirclemaximumisrecommended.
•Whenbothendsarecrimpcurved,themaximumrecommendedstraightdistancebetweenthetwocurvesshouldbe6000mm.
6000mm (max)
100mm (min)180mm (min)
R450mm (min)R450mm (min)
R450mm (min)
LYSAGHT® Trimdek® opTimA™ 9
• Forlengthsexceeding12000mm,pleaseconsultBlueScopeLysaghtformoreinformation.
• Foreasytransportationandmaximumprotectionforthecrimpcurvedsheets,themaximumheightandlengthofthesheetingshouldbe2000mmand11300mmrespectively.
SiDe-lapSthe side of Lysaght® trimdek® optimatmwiththeanti-capillarygrooveisalwaystheunderlap(seefiguresonthispage). It isgenerallyconsideredgoodpracticetousefastenersalongside-lapshowever,whencladdingissupportedasindicatedinMaximumSupportSpacings,side-lapfastenersarenotusuallyneeded for strength.
enD lappingEnd-lapsarenotusuallynecessarybecauseLysaght® trimdek® optimatmisavailableinlonglengths.
Ifyouwantend-laps,seekadvicefromourinformationlineonthesequenceoflayingandtheamountofoverlap.
enDS of SheetSItisusualtoallowroofsheetstooverlapintoguttersbyabout50mm.Iftheroofpitchislessthan25°orextremeweatherisexpected,thepansofsheetsshouldbeturned-downatlowerends,andturned-upatupperendsbyabout80°.
pan fixing for walls only
Stitchingscrewhexhead#10-16x16
11,300mm (max)
2m (max)
Crest fixing for roofs or walls
LYSAGHT® Trimdek® opTimA™10
Approx.5mmApprox.5mm
Cutbackcorner&rib
laYing pRoceDUReFormaximumweather-tightnessstartlayingsheetsfromtheendofthebuildingthatwillbeintheleeofworst-anticipatedorprevailingweather.
Itismucheasierandsafertoturnsheetsonthegroundthanupontheroof.
Beforeliftingsheetsontotheroof,checkthattheyarethecorrectwayupandtheoverlappingsideistowardstheedgeoftherooffromwhichinstallationwillstart.
Placebundlesofsheetsoverornearfirmsupports,notatmidspanofroofmembers.
Sheet-enDS on low SlopeSWhen Lysaght® trimdek® optimatmislaidonslopesof5degreesorless,cutbackthecorneroftheunder-sheet,atthedownhillendofthesheet,toblockcapillary action.
aDVeRSe conDitionSIfthisproductistobeusedinmarine,severeindustrial,orunusuallycorrosiveenvironments,askforadvicefromourinformationline.
metal & timBeR compatiBilitYLead,copper,freecarbon,baresteelandgreenorsomechemically-treatedtimberarenotcompatiblewiththisproduct.Don’tallowanycontactoftheproductwiththosematerials,nordischargeofrainwaterfromthemontotheproduct.Supportingmembersshouldbecoatedtoavoidproblemswithundersidecondensation.Iftherearedoubtsaboutthecompatibilityofotherproductsbeingused,askforadvicefromourinformationline.
LYSAGHT® Trimdek® opTimA™ 11
wind speeds versus return period(3sgust,10mheight,opencountryterrain)
handbook level Description equation for VR V50 V500
I Strongthunderstorms 70-56r -0.1 32 40 and monsoon winds
II Moderatelysevere 67-41R-0.1 39 45 thunderstormsand extra-tropicalgales
III Severethunderstormsand 106-92R-0.1 44 57 moderate or weakening typhoons/tropicalcyclones
IV Strongtyphoons/ 122-104R-0.1 52 66 tropical cyclones
V Verystrongtyphoons/ 156-142R-0.1 60 80 tropical cyclones
Tablesummarisestheproposedrelationshipsbetween3sgustwindspeedandreturnperiodforthefivelevelsinthehandbook(seemap).Thevaluesarefor50yearsand500yearsreturnperiods.
maintenanceOptimumproductlifewillbeachievedifallexternalwallsarewashedregularly.
Areasnotcleanedbynaturalrainfall(suchasthetopsofwallsshelteredbyeaves)shouldbewasheddowneverysixmonths.
Aprogrammeofroofmaintenanceisrequiredtomaintainanywarrantyoffered.
SafetY, StoRage anD hanDlingLysaght®productmaybesharpandheavy.
Itisrecommendedthatheavy-dutycutresistantglovesandappropriatemanualhandlingtechniquesoraliftingplanbeusedwhenhandlingmaterial.
Keeptheproductdryandclearofftheground.Ifstackedorbundledproductbecomeswet,separateit,wipeitwithacleanclothtodrythoroughly.
Handlematerialscarefullytoavoiddamage:don’tdragmaterialsoverroughsurfacesoreachother;don’tdragtoolsovermaterial;protectfromswarf.
cUttingForcuttingthinmetalonsite,werecommendacircularsawwithametal-cuttingbladebecauseitproducesfewerdamaginghotmetalparticlesandleaveslessresultantburrthanacarborundumdisc.
Cutmaterialsoverthegroundandnotoverothermaterials.
Sweepallmetallicswarfandotherdebrisfromroofareasandguttersattheendofeachdayandatthecompletionoftheinstallation.Failuretodosocanleadtosurfacestainingwhenthemetalparticlesrust.
SealeD jointSForsealedjointsusescrewsorrivetsandneutral-curesiliconesealantbrandedassuitableforusewithgalvanisedorZiNCaLUme® steel.
non-cYclonic aReaSTheinformationinthisbrochureissuitableforuseonlyinareaswhereatropicalcycloneisunlikelytooccurasdefinedinAS1170.2-2002.Mapandtable(below)takenfromHB212-2002.
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