lafarge technical brochure

S o u t h A f r i c aManual

Technical

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1 Lafarge Gypsum South Africa Product Range:

2 Introduction to Lafarge Plasterboard:

Plasterboard Properties TechnicalSpecificationandMaterialSafety ProductRangeIdentification •LafargeGypsumStandardPlasterboard •LafargeGypsumTechnicalPlasterboard •LafargeGypsumFireCheckPlasterboard •LafargeGypsumMoistureCheckPlasterboard Building with Plasterboard Profile 1.1PerformanceSpecifications/Properties •SoundInsulationPerformance(Acoustics) •DescriptionofCommonTermsusedwhendescribingsound InsulationPerformance •EffectofDifferentWallsonSoundInsulationPerformance •FireResistance •EvaluationCriteria •ModificationstoFireRatedsystems •FireHazardProperties 1.2ContextualApplicationandprotection •CondensationandVentilation •ExternalApplications •ExposuretoHighHumidity •ExposuretoExcessiveHeat 1.3Storage,DeliveryandHandling •HandlingofLafargePlasterboard •CuttingofLafargePlasterboard •SettingOutandInstallation •EnvironmentalControl •StructuralIntegrity 1.4LafargePlasterboardFinishingGuide •SurfacePreparation •GeneralRecommendations •JointingofPlasterboardTaperedEdges •Checklist •TypicalLightConditionsandFinishingLevels

3 Introduction to Lafarge Plasterboard:

InternalPartitionSystems PlasterboardJointing TypicalLocatingofStuds TypicalPartitionLayout TypicalstudLocationatDoorOpenings TypicalPartitionCornerDetails TypicaldoorTrackLocationonCorners TypicalDoorFrameDetails Typical“T”JunctionDetails StandardSpecificationsforDrywallSystemsupto3600mm PlasterboardPartitionfrom3600mmto8000mminHeight PlasterboardPartitionover8000mminHeight Lafarge89mmPartitionSystem3DDoorDetail LafargeDoorFrameKit LafargeWindowFrameKit LafargeFixedPartitionAluminiumTrimAccessories TechnicalSpecification TypicalResidentialWallDivisions WetAreaSpecification ConstructionDetailsforWetAreas

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Technical Manual South Africa

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Index

FixturesandFittings PlasterboardFittingandFixingDetails

4 Lafarge Ceiling Systems:

StandardSpecificationsforCeilings GridLayoutforSuspendedCeilingsusing1200mmCrossT-Section TypicalSuspensionDetails •SuspensionDetailsforExposedCeilingGrid •GridLayoutforSuspendedCeilingsusing600mmCrossT-Section •SubGridDetail(StrainedWire)ExposedCeiling •Lay-inSuspendedCeiling •Cross-SectionDetailsofLafargeCeilingGrid(TeesExposed) •RecommendationfortheSuspensionofTeeSystems •InstallationoftheExposedGridSystem •LafargeLay-inCeilingGridSystem •GridLayoutforLay-inCeilingsSubGridDetail CeilingTrimDetails LafargeGypsumCeilingTiles •PaintedandPerforatedCeilingTiles TimberBrandering Steel Brandering LafargeGypsum75mmGypsumCorniceDetail 6.4mmFlushPlasterboardCeiling GridLayoutforPlasterboardCeilingsusing1200mmCrossT-Section SuspendedPlasterGrid •LafargePlasterGridSytem(Gridlock) •LafargePlasterGridSystem(Nordgrid) AluminiumSections GridLayoutforCeilingsSubGridDetail LafargeMainsuspensionMethodsforCeilingGrid 9mmand12mmFlushPlasteredCeiling FireRatedCeilingSystems FireRatedSuspendedCeilingSystems FixedFireRatedSystems 75mmLafargeCoveCorniceDetailforFirePropertySpecification GridLayoutFireResistancePlasteredCeiling LafargeDecorativeMouldings FixingInstructionsforCornices PreparingJointsandCornerMitreofCornices OpeningSolutions

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Introduction

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TheLafargeGypsumbusinessunit(‘Gypsum’),partofLafargeSouthAfrica,manufacturesandmarketsgypsum-basedbuildingproductsforconstructing,finishingordecoratinginteriorwallsandceilingsinresidential,commercialandinstitutionalconstructionprojects.LafargeGypsumstrivestobetheleadingsupplierofinteriorfinishingproductsinsub-SaharanAfrica,focusedongypsumplasterboardandcomplementarysystems,whilecreatingvalueforallstakeholdersinthebusiness.

ThebusinessunitoperatesagypsummineatPofadderintheNorthernCapeProvinceandtwointernationalclassmanufacturingfacilitiesinthesouth-eastofJohannesburg:aplasterboardfactoryatRoodekop,whichbeganproductionin2007,andafactoryinAlrode,whichmanufacturessteelceilinggrids,metalstuds,aluminiumprofilesforpartitioningframes,associatedaccessoriesandaccessflooring.

WearetheonlyplasterboardmanufacturertohavetheEcospecifiergreenlablesforallourplasterboards,compoundsandvinylceilingtileswhichmeansthattheuseofourproductsenhancesgreenratingsforGreenBuildings.Weoffersupportandtrainingtobothourresidentialandcommercialcustomersthroughincreasedtrainingandmobiletechnicalassistancewhichincludesbutisnotlimitedtoonsiteassistance.Inadditionweofferinstoremarketingsupporttoourvaluedcustomersandwillensurethatoursalesteamsareinvolvedandengagedintheadvertisingandpromotionalgridsofyourrespectivestores.

Asleadersininnovationwearecontinuouslyseekingtoaddvalueandgrowthtothevarioussegmentswedobusinessinbynotmerelysellingaproductbutbyofferingtechnical interior solutions.

Ourgoalistostrengthenourpositionbybeingthebest,throughourcommitmenttobeingthepreferred:

•supplierforourcustomers•companyforouremployees•partnerforourcommunities•investmentforourshareholders

LafargeplasterboardandassociatedceilingandpartitionsystemsaresoldtoinstallersthroughanetworkofstoresinSouthAfrica,BotswanaandMozambique.Gypsum’sproducts are also distributed to specialised resellers and hardware stores

LafargeGypsumSouthAfrica18BariumStreet,AlrodeExt7,1448Telephone:(011)3894500|Fax:(011)8646816

For more information, visit www.lafarge.co.za

Technical Manual South Africa4

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Lafarge Gypsum South Africa Product Range

LafargeGypsumoffersacomprehensiverangeofplasterboardsystemstomeetthepracticalandperformanceneedsofnewbuildandrefurbishmentprojects,coveringallsectorsofthemarket,residential,commercial,retail,hospitality&health.Thecomprehensiverangeofsystemsisde-signedtooffertheArchitect,DeveloperandSpecifierthepossibilityoftranslatingexcitingvisualconceptsintoactualon-sitereality.

Standardplasterboards6.4mm square edge• 2400x900-2400x1200• 2700x900-2700x1200• 3000x900-3000x1200• 3300x900-3300x1200• 3600x900-3600x1200-4200x12009mm tapered edge• 2400x1200• 2700x1200• 3000x1200• 3300x1200• 3600x120012mm tapered edge• 1200x2400,2700,3000, 3300,360015mm tapered edge• 1200x2700,3000

TechnicalPlasterboards12,5mm & 15mm FirecheckTapered edge• 2700x1200• 3000x120012,5mm & 15mm MoistureCheck Tapered edge• 2700x1200• 3000x1200

Lafarge Gypsumplasterboards

ConstructionpracticeandBuildingRegulationscallforarangeofboardstomatchspecificinstallationneeds

LGplasterboardsarecomplementedbyhighperformanceproductsspecificallydesignedforfireresistance,moistureresistance, acoustic applicationsandprovidethermalandvapourresistancewhen used in conjunction with complementaryotherproduct

LGplasterboardsaremanufacturedtoSANS266–2003standards

LGplasterboardssystemsaretestedforfireresistancetoSANS10177Part2–2005Forstability,integrityandinsulation

Lafarge Gypsum Partition & metal system sections

LGhasdevelopedacompleterangeofmetalsystemsforuseincombinationwithitsplasterboardsandaccessoryproducts.Togethertheyprovidesolutionstomeetallthedesignrequirementsofamodernconstructionmarket

Tocomplementitsrangeofplasterboardpartitions,ceilings,andplasters,LGoffersspecialistaccessoriessuchasaluminiumtrimsystems,doorandwindowframekits,accesspanelsandfixings

Lafarge Gypsum Studs

• 51mm• 58mm• 64mm• 102mm

Lafarge Gypsum Track

Lengths 0f 3000mm• 52mm• 59mm• 65mm• 103mm

Lengths2400,2700,3000,3000,3600Orcanbemadetorequiredlengthmax8m

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Plasterboard Types

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T Bar Grid Ceiling System

LGsuspendedexposedandsuspendedfixedsystemscompriseofhighqualityTBargridsectionsthatareassembledtoformagridsystemwhereproductiseitherlay-inorfixedtoformaceilingsystem.Afullrangeofplasterboard,ceilingtilesandplastersareavailabletocompletetospecificrequirements.Thesesystemsoffereasyaccessforgeneralmaintenanceplussolutionsforbothaestheticandacousticabsorbancerequirements(NRC).

T Bar System

Exposed main tee’s25mm white cap face• 3600mm• 3500mm

Exposed cross tee’s• 1500mm• 1200mm• 600mm

Plaster Grid main tee’s35mm galvanized knurled face• 3600mm

Plaster cross tee’s• 1200mm

LaFarge Gypsum T Bar System Accessories

Exposed Main Tee

Plaster Grid Main Tee

Exposed Grid Cross Tee

Plaster Grid Cross Tee

LafargeMainTee3600mm/3500mm

LafargeCrossTee1200mm

WhiteCappedCeilingTee’s


LafargeSteelBranderinghas been designed as an alternativetotimberbrandering.Steel brandering can also be usedinbulkheadconstruction.Arangeofjoinersarealsoavailabletofacilitatechangein direction and easier construction.Theadvantagesin using steel brandering rangefrombeingcosteffective,transportation, handling and storage,easytosuspend,easytolevel,straightness,variedlengths,easycutting,minimumwastage,easyinstallationandecofriendly.

LaFarge GypsumSteel BranderingSystem

Knurled• 2400mm• 2700mm• 3000mm• 3300mmm• 3600mmSuspension bracket• Straight joiner• 2wayjoiner• 3wayjoiner• 4wayjoiner

LaFarge Gypsum Steel Brandering Accessories

Shadow line Plastertrim 12mm board

Shadow line Plastertrim 9mm board

Shadow lineWall angle

StandardWall angle

Straightjoiner

2 wayjoiner

3 wayjoiner

4 wayjoiner

DIE 6640Plaster Ceiling Junction

DIE 6640Plaster Board Trim

SuspensionBracket

Steel Brandering

Perimeter Trims

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Plasterboardisfinishedusingplastercompounds,whereeitherafinalfloatfinishorsandingisundertakenandthenfinallypaintedtoachieveasmoothandevenappearance.

Nobuildingliningsystemhasasurfacethatisperfectlyflatandtotallyfreeofimperfections.Bypayingattentiontoframing,plasterboard sheet orientation, paintfinishesandlightingconditions, it is possible to attain theperceptionofflatness.Therangeofplastercompounds,whenappliedtospecificationwillassistinachievingthefinishesasspecified.

LaFarge Gypsum range of plaster compounds

Plaster product(Full skim)• LafargeSkim–Lite40kg• LafargeSkim–Stone33kg

Finishing product(Full skim)• LafargeFinishingcompound25kg

Jointing product(Plasterboard joints)• LafargePremiumJointingCompound20kg

LaFarge GypsumPlasters


Introduction to Lafarge Plasterboard


Product Range

Plasterboard properties

Plasterboardconsistsofacorethatismadefromgypsum,anaturallyoccurringmaterial.Thelinerpaperusedtomakethisproductisbiodegradableandmadefrom100%recycledpaper.Hence,theenvironmentalbenefitofPlasterboardisthatitis100%recyclable.

The plasterboard manufacturing process operates under strict environmental guidelines, adhering to and encompassing the following:• Efficientuseofenergyandwater• Efficientcollectionandmonitoringofdust• Ongoingwastereduction• Minimisationofplantimpactonsurroundings

Technical Specification & Material Safety:

Standardplasterboardisnotclassifiedashazardousastheproductisnon-toxicandNon-flammable.MaterialSafetyDataSheetsareavailableonrequestfromourTechnicalDepartment.

TheLafargePlasterboardrangeismanufacturedaccordingtoSANS266-2003.

PRODUCT RANGE IDENTIFICATION

• Lafarge Gypsum Standard Plasterboard:

LafargeStandardPlasterboardisidentifiedbytheivoryfaceandbrown backingpaperliners,withnospecialadditivestothegypsumcoreor specialtreatmenttothepaperlinersexceptthatwiththe6,4/9/12/15mm plasterboard,fibreglassstrandshavebeenaddedtothecoretoallow forgreaterstrengthandflexibility.Thisproductisusedfordomesticand commercialceilingapplicationsaswellaspartitioningapplications.Lafarge StandardPlasterboardisalsousedtocreatebulkheads,curvedceilings andcurvedwalls.

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• Lafarge Gypsum Technical Plasterboard:

TheLafargeTechnicalPlasterboardcompositionismanufacturedto enhanceandmeetparticularenvironmentalspecificdesign,performance andutilitarianrequirements.Lafargemanufacturerstwotypesoftechnical plasterboards,namely:

• Lafarge Gypsum Fire Check Plasterboard:

TheLafargeFireCheckPlasterboardhasexfoliatedvermiculiteand fibreglassstrandsinthegypsumcoretoincreasefireresistance.Itis differentiatedbyitscoveringofpinkpaperliner.Availablein12,5mm and15mmthicknessesandisrecommendedforareaswhereadditional fireresistanceisrequired,e.g.:kitchens,record&fillingrooms,fire escapesandspecifiedofficepartitions.

• Lafarge Gypsum Moisture Check Plasterboard:

LafargeMoistureCheckPlasterboardhassiliconeinthegypsumcore andissuitableforusein‘wetareas”showers,bathrooms,kitchensand protectedexternalapplications.LafargeMoistureCheck12.5mmand 15mmPlasterboardcanbeusedinareaswhereceramicwalltilingis required.Thisplasterboardisnotsuitableforprotectionagainst continuousdampnessorasabaseforcementrendering.Moisture CheckPlasterboardsarelinedonbothsideswithadistinctivegreen waterrepellentpaperforeaseofidentification.Theboardsarenot suitableforuseintemperaturesabove52°C,andmustnotbesubjected tofreezingtemperatureswithoutriskofdamage.

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Building with Plasterboard

ThecomprehensiverangeofLafargePlasterboard‘specificsystems’meetboththepracticalandperformanceneedsofbothnewandrefurbishmentprojects,rangingfrombasictohigh-endsystems.

Profile

The6.4mmLafargePlasterboardismanufacturedwithasquareedgeonly.TheLafarge9mm,12mm/12.5mmand15mmPlasterboardsaremanufacturedwithataperedge.

The12mm/12.5mmand15mmboardscanbemanufacturedwithasquareedgeifrequired,butisdependentonordervolume.EnquirefromSalesbeforehand.

TaperedgesonthelongendsofPlasterboardareprovidedtoensurethatjointingcanbeachievedeasilywithasmoothandlevelfinish.

1.1 Performance Specifications / Properties

• Dimensional Stability:

Plasterboardisdimensionallystablewhencomparedtootherbuildingmaterials.Twomeasuresofdimensionalstabilityarelistedbelow: •Thermalcoefficientoflinearexpansion(α)=16.7x10-6/°C,measured unrestrainedoverthetemperaturerangeof3 °C-32°C •Hygralcoefficientofexpansion=6.5x10-6/%RH,measured unrestrainedovertheRelativeHumidity(RH)rangeof10%-90%

• Thermal Properties:

Thermalconductivity(k)isthemeasureofamaterial’sabilitytotransmitheat;itisexpressedasheatflowinwattspersquaremetreofsurfaceareaforatemperaturedifferenceof1°CpermetrethicknessandisexpressedasW/m2°C.

Thermalcoefficientoflinearexpansion(a)=16.7x10-6/°C,measuredunrestrainedoverthetemperaturerangeof3°C-32°C

Hygralcoefficientofexpansion=6.5x10-6/%RH,measuredunrestrainedovertheRelativeHumidity(RH)rangeof10%-90%

Thelowerthe(k)valueofthematerial,thebetterisitsinsulation.

TheR-valueofplasterboardisameasureofitsthermalinsulationability.Highernumbersindicateabetterinsulator.

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Therefore,fortheLafargeplasterboards,wehavethefollowingproductRvalues:• 6.4mmLafargePlasterboardRvalue=0.04Km2/W• 9mmLafargePlasterboardRvalue=0.053Km2/W• 12mmLafargePlasterboardRvalue=0.070Km2/W• 15mmLafargePlasterboardRvalue=0.095Km2/W

• Sound Insulation Performance (Acoustics):

There are three types of acoustic functions-

I.) Sound Insulation:

Soundinsulationreferstotheabilityofamaterialorpartition/ceiling systemtostoporreduceairbornesound.

a) Internal Sound Insulation: Internalsoundinsulationisimportantwhendesigningapartitionwall,to stopnoisepassingthroughfromanadjoiningroom b) External Sound Insulation: Externalsoundinsulationreferstotheabilityofmaterialstoreduce soundtransferringintoorfromabuilding.Goodexternalsoundinsulation isimportantwhendesigningandconstructingexternalelementsofa building.Thisincludeswalls,windows,doors,ventilationandroofing.

II.) Sound Absorption:

Soundabsorptionistheabilityofamaterialtoabsorbsoundwithinaroom.

III.) Flanking:

Flankingisthetransferofnoisethroughpathsaroundabuildingelement, ratherthanthroughtheelementitself.Flankingdescribesthetransferof noisethrough,gaps,cracksinthebuildingelement,andincorrectlysealed junctions between objects.

• Description of common terms used when

describing sound insulation performance:

dB=Thedecibel(dB)istheunitusedforsoundlevelmeasurement. Variationsof(dB)areusedfordifferenttypesofnoisemeasurement.The mostcommonlyusedvariationisthe(dBA)

dBA=Unitofsoundlevelinweighteddecibels.Thehumanearisnot equallysensitivetoallfrequenciesofsound.TheAweightingapproximates thesensitivityoftheearbyfilteringthesefrequencies.A(dBA) measurementisconsideredrepresentativeofaveragehumanhearing.

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Rw=KnownastheWeightedSoundReductionIndex,Rwisasingle number(dB)referringtotheabilityofawallorotherbuildingstructure toprovidesoundinsulation.Thehigherthenumber,thebetterthesound insulation.Rwreferstosoundinsulationachievedinanacoustictesting laboratory.

DnT,w=ReferredtoastheWeightedStandardisedFieldLevelDifference, DnT,w,isameasureofthesoundinsulationperformanceofabuilding elementthatindicatesthelevelofspeechprivacybetweenspaces.Itis characterisedbythedifferenceinnoiseleveloneachsideofawallorfloor. Itisafield’smeasurementthatrelatestotheRwlaboratorymeasurement. Thehigherthenumber,thebettertheinsulationperformance.

L’nT,w=ReferredtoasWeightedStandardFieldImpactSoundPressure Level.L’nT,wisameasureofnoiseimpactperformanceonafloor.Itisa fieldmeasureoftheamountofimpactsoundreachingaspaceviaafloor.It ismeasuredinthefieldandisthereforesubjecttoinherentinaccuracies. ItistheequivalentfieldmeasurementtotheL’n,wlaboratorymeasurement. Thelowerthenumber,thebettertheperformance.

Rw + Ctr=ThismeasuresthesameasRwbutincludesamadaptation factor(Ctr)totakeintoaccountlowfrequencysoundsgeneratedbyhome theatreandsoundsystemequipment.Theadaptationfactorisanegative numberandthereforeRw+CtrislowerthanRw.Thisistheappropriate measurementforinternalsoundinsulation

NRC=TheNoiseReductionCoefficient,defineshowmuchsoundspecific materialsabsorb,Itistheaveragesoundabsorptionbetween250Hz-2kHz. AmaterialwithlowNRCratingabsorbslittlesoundandamaterialwitha higherNRCratingabsorbsmoresound.

• Effect of Different walls on sound insulation

performance:

Rw Rw+Ctr EffectofdifferentvaluesofRwandRw+Ctr Onsoundinsulationperformance 25 22 Normalspeechcanbeheard 30 25 Loudspeechcanbeheard 35 28 Loudspeechcanbeheardbutnotunderstood 42 35 Loudspeechheardasamurmur 45 38 Muststraintohearloudspeech 48 40 Loudspeechcanbarleybeheard 53 44 Loudspeechcannotbeheard 63 55 Musicheardfaintly,bassnotes‘thump’ 70 60 Loudmusicstillheardfaintly

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*Note:LafargeGypsumhasaprogrammethatcancalculateacoustic requirementsoninformationgivenandmakerecommendations.This programmeistheoreticallybased.

• Fire Resistance:

Plasterboardisnaturallyfireresistant.Thecoreslowsdownthespread offirebyreleasingchemicallyboundwaterwhenheated.Thisisasimilar processtoevaporationandaidscooling.

SystemsFiretestingiscarriedoutinaccordancewithSANS10177-2,Fire testingofmaterials,componentsandelementsusedinbuildingsPart2: Fireresistancetestforbuildingelements.

Firesystemsareratedtowithstandafireundertestconditionsforacertain periodoftime.Thisisknownasthefireresistancelevel(FRL)andconsists ofthreemainevaluationcriteria.

Evaluation Criteria

I.)Stability:TheabilitytomaintainstabilityII.)Integrity:TheabilitytoresistthepassageofflamesasspecifiedIII.)Insulation:Theabilitytomaintainatemperatureoverthewholeofthe exposedsurfacebelowthatspecifiedintheteststandardsIV.)Loadbearing:Loadbearingelementsaretoremainbelowthesoftening pointforthedurationoftherequiredfirerating.

• ContinuityandInstallation.

Fireratedsystemsmustbebuiltinaccordancewiththespecific instructions,therearesomevariationsallowedthatwillnotdegradethe performanceofthesystem: • Increasingcavitywidth • Increasingstudsizeormetalthickness • Addingnogginstosupportfixturesorservices • Decreasingthestudspacing • Decreasingthefastenerspacing • Addingspecifiedlayerstoasystemuptoaweightof20kg/m2and nothickerthan25mm. • Forloadbearingwalls,theloadperstudmustincludetheextralining

• Modifications to Fire rated Systems

Fireratedsystemsareoftenmodifiedbytheinstallationof: • Fireratedinspectionhatches • Fireratedpowerpoints • Fireratedlightfittings • Firerateddoors • FireDampers

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• Electricalcables • Metalorplasticpipes • Otherfireratedpenetrations

Itistheresponsibilityofthemanufacturerofthesecomponentsto ensurethatthefireandacousticpropertiesoftheplasterboardsystemare maintained.

• Fire Hazard Properties:

Firehazardpropertiesrelatetothecombustibilityofplasterboard,orfor thatmatteranyotherbuildingmaterialproduct,andnotitsperformanceina firetest.ForproductcombustibilityinformationrefertoSANS10400 NationalBuildingRegulations.

1.2 CONTEXTUAL APPLICATION & PROTECTION

Condensation & Ventilation:

Condensationofwaterontoeitherthefaceorbackoftheplasterboardmustbeavoided.Insufficientprotectionfromcondensationcanresultinjointdistortion,plasterboardsagging,mouldgrowthandfastenerpopping.Manyinter-relatedfactorsmustbetakenintoaccounttocontrolcondensation.Agoodpracticeistomakeuseofwall/ceilinginsulationandvapourbarriers,aswelltoespeciallyemploygoodventilationsolutions.

Plasterboardcanalsobeaffectedbyhighhumidityconditionsafterinstallation and prior to painting. Rain entering unsealed buildings, water on floorsorothersourcesofopenwatermaycauseexcessivehumidity.Thishumiditymaybeabsorbedbyunpaintedplasterboardresultinginsaggingceilings.Thereforeplasterboardmustnotbeinstalleduntilthebuildingiswaterproofed.

To minimize the effects of condensation:• UseMoistureCheckplasterboardtoincreaseprotectionagainstmoisture• Usemoisturebarriers.Howeveritisimportantthattherighttypeis selectedfortheconstructiontypeandthatitisinstalledcorrectly(referto manufacturersspecifications)• Usefoilbackedinsulationundermetalroofsastheyaresusceptibleto formingcondensation• Installeaves,gableorridgeventsintheroofcavity• Removehumidityfrombathroomsviaanexhaustfantotheoutside• Inhothumidclimateswherethebuildingisair-conditionedbelowthedew pointoftheoutsideair,thewallandceilingframingmembersandinternal liningsshouldbefullyprotectedbymoisturebarrierstoseparatethemfrom thehumidexternalair.Themoisturebarriersshouldbethermallyinsulated tomaintainthematatemperatureabovethedewpoint• Useaqualitypaintsystemtoprovideprotectionagainstpaintpeelingand condensationsoakingintoplasterboardandcompounds

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• External Applications:

Minimumconditionstouseplasterboardinceilingsofbalconiesandunder roofwalkways: • Theplasterboardandcomponentsarenotsubjectedtoanydirectwater, longperiodsofhighhumidityordampconditions • Sealtheplasterboardwithsuitablesealerbeforeinstallation • Theplasterboardsubstrateisdesignedfortheappropriatewindloading conditions • Theroofhascrossventilationabovetheplasterboardceiling • Relatedproductisusedtoimprovetemperaturecontrol,reducewind pressureandcontrolventilation

• Exposure to High Humidity:

Roomssuchasindoorswimmingpoolsandcommunalshowersaresubject tolongperiodsofhighrelativehumidity“RH”(above90%).Theuseof plasterboardinsuchareasisnotrecommendedbyLafargeGypsum

Forroomswithintermittentperiodsofhighhumidity“RH”,MoistureCheck MAYBEUSED.Intheseroomsventilationisrequired,toenableremovalof excessmoisture,viaanopenwindoworexhaustfan.

• Exposure to Excessive heat:

Plasterboardisanidealbuildingmaterialfornormalambienttemperatures. Itisnotsuitedforlongperiodsatelevatedtemperaturessuchasnear fireplacefluesorchimneys.FireCheckisnoexceptionasitisdesignedto slowdownafireandnottoresistconstantelevatedtemperatures.

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1.3 Storage, Delivery & Handling

General:

Toreducethepossibilityofdamage,deliverytositeshouldoccurimmediatelyjustbeforeinstallationandcareshouldbetakennottodamageedges.Oncedelivered(asinstorage)plasterboardmustbekeptdryandshouldbestackedclearoffthefloorusingsupports(bearers)notmorethan400/600apart.

Exposuretoexcessivehumidityduringstoragecanresultinplasterboardbecomingdampandsoft,causingittoappeardefective.Inthiscasetheplasterboardshouldbeallowedtodryoutandevaluationfortheusethereofwilldependonthespecificapplication.Tohelpprotectplasterboardfromabsorbinghumidity:

• Avoidopensourcesofwatersuchaswetfloors• Wraptheplasterboardwithplasticovernight• Provideventilation• Installsoonafterdelivery• Installduringdryweatherforbestresults.

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Handling of LaFarge Plasterboard

• LafargePlasterboardshouldbestackedflatonbearersinadryandlevel areatoavoidgrounddampnessandshouldbeelevatedfromtheground.• Stackplasterboardand/ortimberbearerstorequiredspecifications.• ThemaximumnumberofLafargePlasterboardforeachstackis80sheets for6.4mmboardand40sheetsfor9,12and15mmthickboards.• Nomorethan5stacksshouldbepiledontopofoneanother.Thebearers betweeneachstackmustbealigned.• LafargePlasterboardshouldbekeptindoorsandexposuretowater andtheweathermustbeavoided• LafargePlasterboardshouldbecarriedonitsedgesinanuprightposition bytwopeople,ratherthanflat.Nomorethan2plasterboardsshouldbe carriedatatime.

Cutting of Lafarge Plasterboard:

LafargePlasterboardcanbecutusingasharputilityknifeorafinetoothsaw.Theboardshouldbeplacedflatonalevelsurfacewiththefaceupwards.Marktheareatobecutwithachalklineorpencil.Placeastraightedgenexttothelineandwithasharputilityknifescorethefacelayerofpaper.Slidetheboardovertheedgeofthelevelsurfaceorstanditonedgeandsnapthecoreoftheboard,thebacklayerofpapercannowbecut.Afinetoothsawmayalsobeusedtosawthroughtheboard.Sandallcutedges.

WhenrequiredtocutanLshapeoutofaboard,theonelimbmustbecutwithafinetoothedsawandtheotherlimbwithautilityknifeasdescribedabove.

Setting Out & Installation:

General

Identifyallcomponentsaswellasprefabricatedcomponents.Plan,calculateandmarkthelayoutofthepartition.Plantherequiredmaterialquantities.

Lafarge Gypsum steel framingFixthetracktothefloor,cutasrequired,rememberingtoleavespacefordoor openings.Plumbupwardstocorrectlypositionandinstalltheceilingtrackorhead/wallchannel.Alternatelyfixheadchanneltotheceilingandplumbdownwards.Insertthestudsatspacing’sof600mm,twistthestudinplaceandfrictionwillkeepthestudinposition.Remembertopositionstudsfordoors,glazingandcorners.

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Insertadditionalstudsforcornersandabutments.Loadbearingstudsandsuitabletimberinsertshouldbeusedtoachievethestrengthrequirementsoftheframingassemblyandadequatelysupporttheweightofthedoor.

InsulationFitsecurelywithclosedjoints,leavingnogaps.Unlesstheinsulationisselfsupporting,fixtheinsulationatheadofframeusing25mmx25mmgalvanizedangle.

ServicesAllservicestobecompleted.

Install Lafarge PlasterboardEstablishastartingpoint.Wheninstallingthefirstplasterboardensurethatthefirstjointwillbeplumb(asthewallmaynotbeplumb).Lineupthestudsasyouproceedfromhere,rememberthestudsarespacedat600mmcentres.Usesmallsectionsofplasterboardduringinstallationtokeepplasterboardsoffthegroundtopreventmoisturefromcreepinguptheplasterboards.Fixplasterboardstosteelframeworkusing25mmdrywallscrewsspacedat220mmcentres;fixingsonplasterboardjointstobestaggered.

Vertical JointsLightlybuttboardstogether.Centrejointsonstuds.Ensurethatthejointsonoppositesidesofstudsarestaggered.Fordoublelayerboarding,staggerthejointsbetweenlayers.

Horizontal JointsLightlybuttboardstogether.

Horizontaljointswillnotbepermittedinwallslessthanorequalto3600mm.Inwallsover3600mm(exceedingthemaximumavailablelengthofboard),firstlyagreeonpositionsofjointswherenotspecifiedandthenprovidehorizontalframingtosupportthehorizontaledgesofboards.Ensurethatthehorizontaljointsonoppositesidesofstudsarestaggered.Fordoubleboardlining,staggerjointsbetweenlayersbyatleast600mm.Providehorizontalframingtosupportthehorizontaledgesofthefirstlayerofplasterboard.

Environmental Control:

AcousticsRefertoLafargeGypsumspecifications.Soundseallocation,atjunctionsbetweendrywallframeandadjoiningstructure.Soundsealtobeprovidedasacontinuousbandtoclean,dry,anddustfreesurfaces,leavingnogaps.Sealanygapsandservicepenetrations.

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Fire stoppingSealanygapsandservicepenetrations,withanintumescentsealant,topreventpenetrationofflame.

Accessories and Spacings:

FixingPlasterboardtoLafargeGypsummetalStudsSinglelayer,fixsecurelytoallsupportsat220mmcentresusing25mmdrywallscrewsDoublelayer,(outerlayer)fixsecurelytoallsupportsat220mmcentresusing41mmdrywallscrews.Staggerthedrywallscrewsalongplasterboardbuttjoints.Positionthedrywallscrewsnotlessthan13mmfromcutedgesand10mmfromboundedgesofplasterboard.

Bottomtrackneedstobeanchoredtothefloorusingatleasta6mmdiameterNylonnailinanchortobeembeddedaminimumof40mmintotheconcretesurfacebedslab.Theanchorsshouldbefixedthoughthesteelfoottrackadjacent to where the studs are postitioned.

DeflectionHeadsTobespecifiedbytheprojectstructuralengineer.

SpecificationInstallationtoconformtodetailasspecifiedbyLafargeGypsumandAAAMSA,SABISAGeneralSpecificationforDrywallPartitionsandLightweightinternalwalls.

Drylining:Dryliningconsistingof12mmLafargePlasterboardfixedwithLafargeFinishingplastertobrick,blockormasonrywalls.Finishingplastertobeappliedinverticaldabsof75X250at300mmcentres.Dabsaretobespacedat600mmcentresandcontinuousrunsalongtopandbottomofwall.Plasterboardtobesupportedoffthefloorwitha12mmPlasterboardstripspacer.TheLafargePlasterboardliningistobefirmlybeddedontotheFinishingplasterdabs,andthenstraightenedwithastraightedgeinbothverticalandhorizontalplains.Onlyfulllengthboardsaretobeused.Allverticaljointsaretobelinedup,jointsbetweenadjacentboardstobe1-2mm.JointsaretobereinforcedwithFibatape,filledwithLafargeJointingPlasterandfinishedoffaspermanufacturer’sinstructions.

1.4 LaFarge Plasterboard Finishing Guide

Surface Preparation:

Gypsumboardsurfacestoreceivepaintshallbeproperlypreparedbeforepaintcanbeapplied.Theproperlevelofgypsumboardfinishshallbespecifiedandcompletedpriortopainting.Theselectedleveloffinishwillvarywiththefinaldecorationtobeapplied,locationofthesurfacewithinthebuilding,andtypeandangleofbothnaturalandartificiallightingexpected.

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General Recommendations:

Specifiedproductsandtechniquesforpaintinggypsumboardmustbeusedtoattainaqualityleveloffinishoninteriorsurfaces.Avarietyoffactorsinthepaintingprocessaffectthecreationofapleasingfinish.Recommendationsofpaintmanufacturersvarygreatly;therefore,specificrecommendationsofthemanufacturerofthepaintorothercoatingmaterialshallbefollowedwhenthoserecommendationsaremorestringentthanthegeneralspecificationsprovidedhere.

Jointing of Plaster board Tapered Edges:

NB: 1. Checkboardsurface.Anyrepairsand/orjointswiderthan5mmshould befilledwithLafargeJointingPlaster.Pulloffanyloosepaperandre tapewherecoreisexposed.2. Applyself-adhesiveFibatapeoverthecentreofthejoint.3. ApplythefirstlayerofLafargeJointingPlastertothejointusingatrowel, allowittosetandthenapplyasecondlayerofJointingPlaster.4. ApplyFibatapetointernalcornerensuringthatthetapeisevenlyspaced witherside.ApplyacoatofLafargeJointingPlastertoonesideandallow ittosetbeforeapplyingtheplastertotheotherside.5. OntheexternalcornerapplyalayerofLafargeJointingPlastertoeach sideofthecornerbeadusingatrowel.Whenset,applyanotherlayerof jointingplastertoeachside.Cleanofftheoutsideedges.6. Screwscanbeflushedusingatrowel.ApplyasmallamountofLafarge JointingPlasteroverthescrewheadnonedirectionandwipeinaright angledirection.Apply2ndcoatinthesameway,allowingsettingin between coats.7. Acontroljointisfittedbetweenbrickworkanddrywallwheretheyare inthesamelineorasanexpansionjointsonalongcontinuousdrywall, e.g.wallslongerthan10mshouldhaveacontroljointevery5m.Note thatafullheightdoorframeactsasacontroljoints.Allow1cmgap betweenplasterboardandbrickwork.ButterthisjointwithLafarge JointingPlasterthenpresscontroljointfirmlyintoposition.Jointinnormal manner.8. Whenallfinalcoatsareset,sandlightlytoasmoothlevelfinishusinga finegritsandpaper(80/100grit).Donotover-sand.

NB: Remember to clean off all excess Lafarge Jointing Plaster and feather out.Usingadampclothremoveallpowderfromthejointandsurfaceofboardprior to decoration.

DONOTuseoilorsolventbasedundercoats.Useanygoodqualitypaintforthefinishingcoat.

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Checklist:

1. MakesurethattheLafargeJointingPlasterisallowedtosetthoroughly between coats.2. Checkthatthescrewsandmetaltrimsarecompletelycoveredwith compound.3. Checkthatallfinishedjointsaresmoothanddryfordecoration.4. Checksurfacegenerallyforsmoothnessandpossibleunfinishedwork.

Allcorrectlypreparedgypsumboardsurfaceswhicharetobepaintedshallbeprimedwithaminimumofonecoatofagoodqualitydrywallprimer(orothermaterialmanufacturedespeciallyforthepurpose)toequalizetheabsorptionbetweenthegypsumboardfacepaper,jointcompound,andskimcoatingmaterials.

Agoodqualityprimershallbeusedasthefirstcoatovergypsumboard.Therecommendationoftheprimermanufacturershallbefollowed;however,theminimumdryfilmthicknessoftheprimershallbenotlessthan0.025mm.

Thenumberofcoatsoffinishpaintandthetotaldryfilmthicknessofthefinishcoat(s)dependsuponthepaintbeingused.Thepaintmanufacturer’srecommendationsontotaldryfilmthicknessshallbefollowed.NOTE:Thetotaldryfilmthicknessesrecommendedbysomepaintmanufacturersmayormaynotincludetheprimerthickness.

Itisrecommendedtohavenodilutionofprimercoatandalsotoinitiallyapplypaintontoboard’sfirst,withthesecondcoatofpaintontojoints.Alsoitisimportanttoensuretheprovisionofadequateaircirculationtoproperlydrythepaintwithinthetimeframespecifiedbythepaintmanufacturer.

Typical Light Conditions & Finishing Levels:

Qualityfinishingofgypsumproductsoranyconstructedsurfaceisparamountforprotection(longevity),maintenanceandofcourseaestheticreasons,especiallyinpublicareasand/orhighlyvisibleareas.Thisisevenmorecriticalinenvironmentsthatarewelllitandventilated.

Mixing and Coverage:

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LafargeSkimStone LafargeSkimLite

Water/plastermixingratio

WorkingTime

SettingTime

Shelf-life

Packaging

Coverageratio

1partwater+2partsplaster

60to90minutes

90to120minutes

6months

33kg

1-3mmto18m2,5-6mmto10m2

12-13mmto3m2(per33kgbag)

1partwater+2partsplaster

45to60mins

90to120mins

6months

40kg

1-3mmto22m2,5-6mmto12m2

12-13mmto4m2(per40kgbag)


Priortocommencingwithfinishingworks,itisimportanttodetermineandunderstandthecorrectfinishinglevel(L)asnumericallyindicatedinthetablebelow:

Level Joints Interior Angles Accessories Fasteners Surface

Thisleveloffinishmaybeusefulintemporaryconstructionorwheneverthefinaldecorationhasnotbeendetermined.

0Notaping,finishingoraccessoriesrequired.

1 Tape set in joint compound.

Tape set in joint compound.

Toolmarkstheridgesacceptable.Surfacefreeofexcessjointcompound.

Frequentlyspecifiedinplenumareasaboveceilings,inattics,inareaswheretheassemblywouldgenerallybeconcealed,orinbuildingservicecorridorsandotherareasnotnormallyopentopublicview.Accessoriesoptionalatspecifierdiscretionincorridorsandotherareaswithpedestriantraffic.Somedegreeofsoundandsmokecontrolisprovided.Whereafire-resistanceratingisrequiredforthegypsumboardassembly,detailsoftheconstructionshallbeinaccordancewithreportsoffiretestsofassembliesthathavemetthefire-ratingrequirements.2 Tapeembedded

injointcompoundand wiped with a jointknife,leavingathincoatofcompoundovertape.

Tapeembeddedinjointcompoundandwiped with a joint knife,leavingathincoatofcompoundovertape.

Surfaceshallbefreeofexcessjointcompound.Toolmarksandridgesacceptable.Jointcompoundappliedoverthebodyofthetapeatthetimeoftapeembedmentshallbeconsideredaseparatecoatofjointcompoundandshallsatisfytheconditionsofthislevel.

Shallbecoveredbyone additional coat ofjointcompound.

Shallbecoveredbyoneadditionalcoatofjointcompound.

Specifiedwherewater-resistantgypsumbackingboardisusedasasubstratefortile.Mayalsobespecifiedingarages,warehousestorageorothersimilarareaswheresurfaceappearanceisnotofprimaryconcern.

3 Tapeembeddedinjointcompoundand one additionalcoatofjointing compoundappliedoverjoints.

Tapeembeddedinjointcompoundandone additional coat ofjointingcompoundappliedoverjoints.

Jointcompoundshallbesmoothandfreeoftoolmarksandridges.Note:Itisrecommendedthatthepreparedsurfacebecoatedwithadrywallprimerpriortotheapplicationoffinalfinishes.Seepaintingandwallcoveringspecifications.

Shallbecoveredbyone additional coat ofjointcompound.

Shallbecoveredbyoneadditionalcoatofjointcompound.

Typicallyspecifiedinappearanceareaswherelightingisfavourableandlighttoneflatorlowsheenpaintsareusedbeforefinalpainting,orwhereheavy-gradewallcoveringsaretobeappliedasthefinaldecoration.Unbackedvinylwallcovering;deeptonepaintsarenotrecommendedoverthisleveloffinish.

4 Tapeembeddedinjointcompoundand one additionalcoatofjointing compoundappliedoverjoints.

Tapeembeddedinjointcompoundandone additional coat ofjointingcompoundappliedoverjoints.

Jointcompoundshallbesmoothandfreeoftoolmarksandridges.Note:Itisrecommendedthatthepreparedsurfacebecoatedwithadrywallprimerpriortotheapplicationoffinalfinishes.Seepaintingandwallcoveringspecifications.

Shallbecoveredbytwo separate coats ofjointcompound.

Shallbecoveredbytwoseparatecoatsofjointcompound.

Thislevelshouldbespecifiedwhereflatpaints,lighttexturesofwallcoveringaretobeapplied.Incriticallightingareas,flatpaintsappliedoverlighttexturestendtoreducejointphotographing.Gloss,semi-gloss,deeptonepaintsandenamelpaintscanberecommendedoverthisleveloffinish.Theweight,textureandsheenlevelofwallcoveringappliedoverthisleveloffinishshouldbecarefullyevaluated.Jointsandfastenersmustbeadequatelyconcealedifthewallcoveringmaterialislightweight,containslimitedpattern,hasaglossfinishoranycombinationofthesefeaturesispresent.

5 Tapeembeddedinjointcompoundand wiped with ajointknife,leavingacoatofcompoundovertape and taper.

Tapeembeddedinjointcompoundandwiped with a joint knife,leavingacoatofcompoundovertape and taper.

Askimcoatofplastercompound,oramaterialmanufacturedespeciallyforthispurpose,shallbeappliedtotheentiresurface,thethicknesstothemanufac-turer’sspecification.Thesurfaceshallbesmoothandfreeoftoolmarksandridges.Note:Itisrecommendedthatthepreparedsurfacebecoatedwithadrywallprimerpriortotheapplicationoffinalfinishes.Seepaintingspecification.

Shallbecoveredbyoneseparatecoatofjointcompound.

Shallbecoveredbyoneseparatecoatofjointcompound.

Thisleveloffinishishighlyrecommendedwheregloss,semi-gloss,enamelornon-texturedflatpaintsarespecified,orwhereseverelightingconditionsoccur.Thehighestqualityfinishisthemosteffectivemethodtoprovideauniformsurfaceandminimizethepossibilityofjointphotographingandoffastenersshowingthroughthefinaldecoration.

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Internal partition system

LafargePartitionSystemsarequicktoerectwithveryhighlevelsoffireandacousticperformance.Avarietyofdifferentspecificationoptionsachieveacousticinsulationstandardsupto65dBandfireresistanceupto180minutes.Thepartitionsusemetalstudswith12mmor15mmLafargePlasterboard. Componentsarelightandeasytohandle,quickandsimpletoinstall,andenableminimumwastage.LafargeGypsum’spartitionsaredimensionallyaccurateandwillnotbow,warporshrink.Standardcut-outsinbothstudsandtracksaccommodatemechanicalandelectricalserviceswithouttheneedforsite-formedholes.

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Plasterboard Jointing

Internal Partitioning System

Typical Plaster Joint Detail - Tape & Joint

Typical Locating of Studs


1. Drywallstudstobeinserted intofloorandceilingtrack withatwistmotion2. Allowa10mm clearancebetweentopof studandtrack3. Erectstudsat400/600mmcts

Typical Plaster Joint for Flush Plastering

Lafargesteeltrack

Lafargesteeltrack

twist

twist stud into position

maintees@1200mmc/csupportedatevery1200mm,crosstees@400mmc/c

LafargePlasterfinishtospecification(2-3mmthick)

50mmwidefibatapeTaperEdgeLafargePlasterboard

12/9mmLafargePlasterboardfixedceilingtoLafargeplasterceilingteeswith25mmdrywallscrews@150mmc/c

25mmDrywallScrews

25mmDrywallScrews12/9mmLafargePlasterboardfixedceilingtoLafargeplasterceilingteeswith25mmdrywallscrews@150mmc/c

LafargejointingPlastertospecification(minimum2coats)

50mmwidefibatape

TaperEdgeLafargePlasterboard

maintees@1200mmc/csupportedatevery1200mm,crosstees@400mmc/c

TaperEdgeLafargePlasterboard

LafargejointingPlastertospecification(minimum2coats)50mmwidefibatape

12/12.5/15mmLafargePlasterboardwith25mmdrywallscrews@220mmc/c

LafargeStud25mmDrywallScrews


Typical Partition Layout


1. Setoutasrequired,allowing openingsonbottomtrackfor doorframes2. FixLafargetracktofloor3. FixLafargetracktoceiling4. orFixheadsectionasrequired5. Positionstudsat400/600cts

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Typical Stud Location at Door Openings


1. Dooropeningsare constructed as per detail2. Extrasupportintheform timber/steeltubingwillbe requiredwhenhanging solid doors3. Checkthatthetracksare securelyfixed@400/600 cts at ends4. Checkthattheappropriatestudsaresecured5. Checkthatallstudsareproperlyspaced6. Checkallwallsarelevelandplumb7. Checkalldoorframesandopeningsareproperlyfixed

Typical Partition Corner Details

drywallscrew

Internal corner

CornerBead 90DegreeCornerDetail

drywallstuds

Internal corner

drywallscrew

door opening

DoorDetail

track

stud

track

intermediatestudsteelpoprivetfixing

trackflangedandfixedtostud

drywallandinternalpartitions

ROOMROOM


Typical Floor Track Location on Corners


1. Floortrackfixedasperdetail2. Toanchorthebottomtrack, usea6mmdiameterNylonnail inanchoraminimumof40mm intoaconcretesurfacebedslab. Theanchorsshouldbefixedthrough thesteelfoottrackadjacenttowhere the studs are positioned.

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Typical Door Frame Details


1. Steeldoorframesarefixed byscrewingdrywallstudsto fixingplateweldedinsidethe steeldoorframe2. Positionthestudtoallowfor plaster board location on other side

Typical “T” Junction Details


1. T-junction studs erected as per details allowing clearancebetweenAandB forplasterboard2. AlternateOption

cutoffsectiontolocatetrack

drywallstud

steeldoorframe

wafertexscrewfixingplate

aluminium4legdoorframealuminiumsinklesshinge

door(40mm)bubblesealgasketlafargestud

drywallscrewslafargeplasterboard

aluminiumdoorframedetail

internal corner

drywallscrew

drywallstuds

centre line

1. T-Junction Detail

2. T-Junction Detail

internal corner

drywallscrew

drywallstuds

centre line


JointsMaterial= Lafarge Jointing Plaster and Fibatape.Lightlysandcutedgesofplasterboardstoremovepaperburrs.Coveralljoints,gapsandinternalangleswithLafargefibatape,dresswithLafargeJointingPlaster,forapplicationofLafargeJointingPlasterpleaserefertomanufacturer’sspecificationsattached.

Full SkimMaterial= Lafarge Skimstone, Lafarge Finishing Compound.Lightlysandcutedgesofplasterboardstoremovepaperburrs.Coveralljoints,gapswithLafargefibatape,dressjointswithLafargeJointingPlaster,applyskimcoattosurfacearea’sasrequired,forapplicationofJumboFinishingCompoundpleaserefertomanufacturersspecificationsattached.

CornersMaterial= Lafarge Gypsum metal corner bead.Applycornerbeadtocornersbyfixingwithdrywallscrews.ApplyJumboJointingCompoundtoexternalface.ForapplicationofLafargeJointingPlasterpleaserefertomanufacturer’sspecification.

“Follow the instructions as supplied by the paint manufacturers to ensureaqualitypaintfinishanddurability.”

Lafarge Fixed Partition Systems

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Standard Specifications for Drywall Systemsup to 3600mm

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LPS51-0/1LafargeGypsumDrywallInternalPartitionSystem

Non-loadbearingdrywallsystem12mmStandardPlasterboard-onelayereachside

APPLICATION:Commercial

WALL PROPERTIES51mmstudSoundinsulationreductionindex 36dBThickness 76mmApproximateweight 20kg/m2

Material UsedA: 51mmDrywallsteelstudB: 52mmDrywallsteeltrackC: 12mmStandardTaperededgePlasterBoard 25mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/cinto steeltrackatfloorandceiling2. Applyasinglelayerof12mmLafargeTaper edgeplasterboardtoeachsideusing25mm drywallscrewsspacedat220mmc/c3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

LPF 58-0/1LafargeGypsumDrywall

Non-loadbearingdrywallsystem15mmTechnicalFireCheckPlasterboard-onelayereachside

APPLICATION:Commercial&Residential



APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/cintosteel atfloorandceiling2. Applyasinglelayerof15mmFireCheckTaperedge plasterboardtoeachsideusing25mmdrywallscrews spacedat220mmc/c3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

600,00

A: 58mm Lafarge steel stud

B: 59mm Lafarge steel track

C: 15mm Fire Check board

600,00

A: Lafarge 51mm steel stud

B: Lafarge steel track

C: 12mm Plasterboard



LPS64-0/1LafargeGypsumDrywallINTERNALPARTITIONSYSTEM


APPLICATION:CommercialandResidential


Material UsedA: 64mmDrywallsteelstudB: 65mmDrywallsteeltrackC: 15mmStandardPlasterboard 25mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/c intosteeltrackatfloorandceiling2. Applyasinglelayerof15mmstandardplasterboardtoeachside sideusing25mmdrywallscrewsspacedat220mmc/c3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

LPF64-30/1LafargeGypsumDrywall30minFIRERATEDINTERNALPARTITIONSYSTEM


APPLICATION:CommercialandResidential

WALL PROPERTIES64mmstud30minFireRatingSoundinsulationreductionindex 38dBThickness 89mmApproximateweight 21kg/m2


APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/c intosteeltrackatfloorandceiling2. Applyasinglelayerof12mmLafargeTaperedge plasterboardtoeachsideusing25mmdrywall screwsspacedat220mmc/c3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

600,00

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LPF64-60/2LAFARGEGYPSUMDRYWALL60minFIRERATEDINTERNALPARTITIONSYSTEM

Non-loadbearingdrywallsystem12mmStandardPlasterboard-doublelayereachside


Material UsedA: 64mmDrywallsteelstudB: 65mmDrywallsteeltrackC: 12mmStandardTaperededgePlasterBoard 25mmand41mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/cintosteel trackatfloorandceiling2. Applyasinglelayerof12mmstandardplasterboard verticaltobothsidesusing25mmdrywallscrewsspaced at220mmc/cstaggerjoints3. Applyafacelayerof12mmstandardplasterboard tobothsidesstaggeringalljoints,using41mm drywallscrewsspacedat220mmc/c4. Tapeandjointaccordingtospecification5. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

LPF64-60/1LAFARGEGYPSUMDRYWALL60minFIRERATEDINTERNALPARTITIONINGSYSTEM

Non-loadbearingdrywallsystem15mmTechnicalFireCheckPlasterboard-onelayereachside

APPLICATION:Commercial&Residential



APPLICATION DETAIL1. SetLafargesteelstudsspacedat 600mmc/cintosteelatfloor and ceiling2. Applyasinglelayerof15mmFire CheckTaperedgeplasterboardtoeachsideusing 25mmdrywallscrewsspacedat220mmc/c3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealing betweentrack,floor,ceilingandanyother abutmentjoints6. Staggertheplasterboardjointsinthesystem

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600,00



Non-loadbearingdrywallsystem12.5mmTechnicalFireCheckPlasterboard-onelayereachside80kg/m3insulmattwiremeshsurfaceFibreblanket


Material UsedA: 64mmDrywallsteelstudB: 65mmDrywallsteeltrackC: 12.5mmFireCheckboard 25mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification Insulmattwiremeshsurfacedfibreblanketof80kg/m3

APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/cintosteel atfloorandceiling2. Applyasinglelayerof12.5mm FireCheckboardvertical toonesideusing25mmdrywall screwsspacedat220mmc/c3. PositionInsulmattinsulationbetween studs,foldthetopoverandsecuretoptrackby positioningandfixingthegalvanisedangle4. Applyasinglelayerof12.5mmFireCheckboardvertical totheothersideusing25mmdrywallscrewsspacedat 220mmc/c5. Tapeandjointaccordingtospecification6. Refertostandardspecification7. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints8. Staggertheplasterboardjointsinthesystem


LPF102-60/1LAFARGEGYPSUMDRYWALL60minFIRERATEDINTERNALPARTITIONSYSTEM

Non-loadbearingdrywallsystem15mmTechnicalFireCheckPlasterboard-onelayereach side

APPLICATION: Residential


Material UsedA: 102mmDrywallsteelstudB: 103mmDrywallsteeltrackC: 15mmFireCheckTaperededgePlasterBoard 25mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstudsspacedat600mmc/cintosteel trackatfloorandceiling2. Applyasinglelayerof15mmFireCheckTaper edgeplasterboardtoeachsideusing25mm drywallscrewsspacedat220mmc/c stagger joints3. Tapeandjointaccordingtospecification4. Refertostandardspecification5. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints6. Staggertheplasterboardjointsinthesystem

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Non-loadbearingdrywallsystem12.5mmTechnicalFireCheckPlasterboard-0.5mmgalvanisedsteelbetweendoublelayerofTechnicalCheckPlasterboard on each side


Material UsedA: 64mmDrywallsteelstudB: 65mmDrywallsteeltrackC: 12.5mmTechnicalFireCheckboardD: 0.5mmgalvanisedsteelsheet 25mmand41mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstuds spacedat600mmc/cinto steelatfloorandceiling2. Applyasinglelayerof 12.5mmFireCheck plasterboardverticaltoonesideusing25mmdrywall screwsspaced at220mmc/c3. Apply0.5mmgalvanisedsteelsheettoeachside(min. 30mmoverlap)4. Applyafacelayerof12.5mmtaperedgefirecheck plasterboard to both sides5. Tapeandjointaccordingtospecification6. Refertostandardspecification7. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints8. Staggertheplasterboardjointsinthesystem

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Non-loadbearingdrywallsystem15mmTechnicalFireCheckPlasterboard-doublelayereachsideWALL PROPERTIES64mmstud120minFireRatingSoundreductionindex 55dBThickness 124mmApproximateweight 54kg/m2

Material UsedA: 64mmDrywallsteelstudB: 65mmDrywallsteeltrackC: 15mmFireChecktaperededgeplasterboard 25mmand41mmDrywallScrews LafargeDrywalljointingsystem Floorandceilingfinishesasperspecification

APPLICATION DETAIL1. SetLafargesteelstuds spacedat600mmc/cinto steeltrackatfloorandceiling.2. Applyasinglelayerof 15mmTechnicalFireCheck plasterboardverticaltobothsidesusing25mmdrywall screwsspacedat220mmc/c,staggerjoints.3. Applyafacelayerof15mmTechnicalFireCheck plasterboard to both sides staggering all joints, using 41mmdrywallscrewsspacedat220mmc/c.4. Tapeandjointaccordingtospecification.5. Refertostandardspecification.6. Accousticperformancerequiressealingbetweentrack, floor,ceilingandanyotherabutmentjoints.7. Staggertheplasterboardjointsinthesystem8. Maximumpartitionheight4,5m



LFG

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Red

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Fire

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Part

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Wid

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App

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t(Kg/m

2 )

Hei

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(m)

Segm

ent/s

LPS

51 -

0/1

Nonloadbearingdryw

allsystem,12m

mStandard

Plasterboard-onelayereachside.S

teelstuds

spacedat600mmc/c.drywallscrew

sspacedat

220m

mc/c

LPF

58 -

0/1

Nonloadbearingdryw

allsystem,15m

mTechnical

FireCheckPlasterboard-onelayereachside.S

teel

studsspacedat600mmc/c.drywallscrew

sspaced

at220mmc/c

LPS

64 -

0/1

Nonloadbearingdryw

allsystem,15m

mStandard


teelstuds


sspacedat

220m

mc/c

LFS

64 -

30/1

Nonloadbearingdryw

allsystem,12m

mStandard


teelstuds


sspacedat

220m

mc/c

LPF

64 -

30/1

(4,2

)Nonloadbearingdryw

allsystem,12m

mS

tandard


teelstuds


sspacedat

220m

mc/c

36dB

40dB

40dB

38dB

38dB

0 60 0 30 30

76 88 94 89

20 23 23 21 21

3.6

3.6

3.6

3.6

4.2

Com

mercial

Com

mercial

Com

mercial

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Com

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Com

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LFG

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Key

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64 -

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Nonloadbearingdryw

allsystem

15mmTechnicalFireCheckPlasterboard-onelayer

eachside.steelstudsspacedat600mmc/c.drywall

screwsspacedat220mmc/c

40dB

45 d

B

49dB

60 60 60

94 112

89

23 39 30

3.6

3.6

3.6

Com

mercial

Res

iden

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Com

mercial

Res

iden

tial

Com

mercial

Res

iden

tial

LPF

64 -

60/2

Nonloadbearingdryw

allsystem,12m

mStandard

Plasterboard-doublelayereachside,staggered

joints.S

teelstudsspacedat600mmc/c.drywall

screwsspacedat220mmc/c

LPF

64 -

60/3

Nonloadbearingdryw

allsystem

12,5mmTechnicalFireCheckPlasterboard-one

layereachsideUThermoMattw

iremeshsurface

Fibreblanket.steelstudsspacedat600mmc/c.

dryw

allscrew

sspacedat220mmc/c


LFG

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t(Kg/m

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(m)

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LPF

64 -

120/

2Nonloadbearingdryw

allsystem,15m

mTechnical

FireCheckPlasterboard-doublelayereachside.

Steelstudsspacedat600mmc/c.drywallscrew

sspacedat220mmc/c

LPF

102

- 60/

1Nonloadbearingdryw

allsystem,15m

mTechnical

FireCheckPlasterboard-onelayereachside.S

teel

studsspacedat600mmc/c.drywallscrew

sspaced

at220mmc/c

LPF

102

- 120

/1Nonloadbearingdryw

allsystem,15m

mTechnical

FireCheckPlasterboard-D

oublelayerseachside.

Steelstudsspacedat600mmc/c.drywallscrew

sspacedat220mmc/c

48dB

48dB

55 d

B

120

120

120

115

115

124

50 50 54

3.6

4.2

3.6

Com

mercial

Com

mercial

Com

mercial

LPF

64 -1

20/1

Nonloadbearingdryw

allsystem

12,5mmTechnicalFireCheckPlasterboard-0,5mm

galvanizedsteelbetweenDoublelayerofTechnical

FireCheckPlasterboardoneachside.steelstuds


sspacedat

220m

mc/c

LPF

64 -

120/

1 (4

,2)

Nonloadbearingdryw

allsystem,12,5m

mTechnical

FireCheckPlasterboard-0,5mmgalvanizedsteel

betweenDoublelayerofTechnicalFireCheck

Plas

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on

each

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40dB

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162

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MA

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4500mm

5500mm

6000mm

6500mm

8000mm

30 Minutes 60 Minutes

Plasterboard Partition from 3600mm to 8000mm in height

• FireCheck-AllJointstobestaggered• Alldrywallscrewsspacedatmaximumc/c• Allfixingsaccordingtomanufacturer’sspecifications• Allmetalstudstobe64mm• Forinternalspplicationwithmax,deflection1/150• Maximumstudspacing400mmthroughout• Allboradstobe12,5mmFireCheckplasterboardstaggerjoints.



4500mm

5500mm

6000mm

6500mm

8000mm


Plasterboard Partition from 3600mm to 8000mm in height


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8100mm

9000mm

9500mm

10700mm

12500mm


Plasterboard Partition over 8000mm in height


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8100mm

9000mm

9500mm

10700mm

12500mm


Plasterboard Partition over 8000mm in height


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Lafarge 89mm Partition System

3D Door DetailL

afa

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Fix

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DetailA DetailB DetailC


Lafarge Door Frame Kit

1. IDWidth820mm±1.0mm2. Legstylesfinallengthtobecutonsitetosuitfloorlevel3. Dimensionstolerances0.50mm4. Materialthickness1.20mm5. Allsectionlengthshaveatoleranceof±1.0mm6. Doorslotagainstinnerleg


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Lafarge Window Frame Kit

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43

Lafarge Fixed Partition Aluminium Trim

Accessories

76mm Lafarge Fixed Partition System (12/12.5mm Plasterboard)

Thelightweightnon-demountablepartitionsystemconsistsofMaleandFemaleAluminiumextrusions.· FemalesectionssupportandpositiontheLafargePlasterboard,asin conventionaldrywalling.· MalesectionsareclipfixedtotheFemalesectionstoformGlazing MullionsandTransoms,DoorframetoGlazingdetails,andtofacilitatefull heightGlazingandfullheightdoors.BubbleSealGasket(whichis usedforbothDoorframeandGlazingsections)istobeinsertedbefore constructingtheframes.

Female Aluminium Sections Male Aluminium Sections

84,10 mm for 76mm Partition

Die 60594 Leg Door Frame(12mm Board)

84,10mm for 76mm Partition

Die 60604 Leg Head/WallChannel (12mm Board)


Die 60562 Leg Clip on Termination

mm for 76mm Partition

Die 6507Traditional Door Frame(12mm Board)

84,10


Die 66684 Leg Glazing (12mm Board)


Die 66804 Leg Double Glazing(12mm Board)


Die 61632 Leg Clip on Door Frame


Die 66672 Leg Clip on Glazing


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Accessories continued

89mm Lafarge Fixed Partition System (12/12.5mm Plaster Board)

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Die 6165Recessed Head(12mm Board)

14,00

15,0

0

Die 6674 Aluminium Glazing


Die 6508Traditional Door Frame(12mm Board)

31,5017

,40

Die 6638 12mm Plasterboard Trim


Die 66822 Leg Clip on Double Glazing


Die 6166Recessed Head(12mm Board)


Die 61604 Leg Head/Wall Channel(12mm Board)


Die 61612 Leg Clip on Termination

Die 6206Recessed Base(12mm Board)




45



97,10

Die 66794 Leg Glazing(12mm Board)

mm for 89mm Partition 97,10 mm for 89mm Partition

Die 66764 Leg Double Glazing(12mm Board)


Die 61642 Leg Clip on Door Frame

97,10 mm for 89mm drywall

Die 66782 Leg Clip on Glazing

14,00

15,0

0

Die 6674 Aluminium Glazing

31,50

17,4

0

19,50

Die 630431,50

17,4

0


Die 6207Recessed Base (12mm board)


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89mm Lafarge Fixed Partition System (15mm Plaster Board)


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Die 66324 Leg Head/Wall Channel(15mm Board)


Die 66774 Leg Glazing(15mm Board)


Die 66334 Leg Door Frame(15mm Board)

31,50

20,4

0




Aluminium Skirting: 75mm Ribbed Skirting

75,00

1,40

Die 1823

100,00

1,80

Die 1830

Aluminium Skirting: 75mm Flat Skirting

Aluminium Skirting: 100mm Flat Skirting

2,50

Die 6144

75,00


Technical Specification:

• LafargeFixedPartition:76mm SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof76mmcomprisinginternal framingformedof51mmLafargegalvanizedsteelstudsfixedat600mm centerstoLafargegalvanizedsteeltrack/aluminiumfemaleheadsection andLafargegalvanizedsteelfloortrack,wherenecessary,anyadditional galvanizedsteelstuddingtoformdooropenings,glazingandother apertures,anglesandcornersandterminatedends.Theinternalsteel framingistobedressedonbothsideswith12mmthickLafarge Plasterboard in single lengths to suit height, butt jointed and secured to steelstuddingwith25mmdrywallscrewsatmaximum220mmcenters. JointsaretobetappedandjointedwithLafargeJointingCompoundand preparedforpaintingorwallpapering.Allexternalaluminiumdoorframes, glazingframes,ceilingandwallchannelsandskirtingaretobeformedof naturalanodized/colouranodized/powdercoatedtospecificcolour.

Maximumheight:3600mm InstallationtobeinaccordancewithSABISA(SouthAfricanBuilding InteriorSystemsAssociation)installationguidelines

• LafargeFixedPartition:89mm SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof89mmcomprisinginternal framingformedof64mmLafargegalvanizedsteelstudsfixedat600mm centerstoLafargegalvanizedsteeltrack/aluminiumfemaleheadsection andLafargegalvanizedsteelfloortrack,wherenecessary,anyadditional galvanizedsteelstuddingtoformdooropenings,glazingandother apertures,anglesandcornersandterminatedends.Theinternalsteel framingistobedressedonbothsideswith12mm/15mmthickLafarge Plasterboard in single lengths to suit height, butt jointed and secured to steelstuddingwith25mmdrywallscrewsatmaximum220mmcenters. JointsaretobetappedandjointedwithLafargeJointingCompoundand preparedforpaintingorwallpapering.Allexternalaluminiumdoorframes, glazingframes,ceilingandwallchannelsandskirtingaretobeformedof naturalanodized/colouranodized/powdercoatedtospecificcolour. Maximumheight:3600mm InstallationtobeinaccordancewithSABISA(SouthAfricanBuilding InteriorSystemsAssociation)installationguidelines


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• LafargeFixedPartition:112mm(1HourFireRating) SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof112mmcomprising internalframingformedof64mmLafargegalvanizedsteelstudsfixedat 600mmcenterstoLafargegalvanizedsteeltrackpositionedatfloor, headandwalls.Theinternalsteelframingistobedressedonbothsides withtwolayersof12mmthickLafargePlasterboardinsinglelengthsto suitheight,buttjointedandsecuredtosteelstuddingwith25mmdrywall screwsatmaximum220mmcenters(firstlayer)and41mmdrywall screws(secondlayer).Jointsaretobetappedandjointed,includingfirst layerofLafargePlasterboard,withLafargeJointingCompoundand preparedforpainting.


• LafargeFixedPartition:89mm(1HourFireRating) SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof89mmcomprisinginternal framingformedof64mmLafargegalvanizedsteelstudsfixedat600mm centerstoLafargegalvanizedsteeltrackpositionedatfloor,headand walls.Theinternalsteelframingistobedressedonbothsideswith 12,5mmthickLafargeFireCheckPlasterboardinsinglelengthstosuit height,buttjointedandsecuredtosteelstuddingwith25mmdrywall screwsatmaximum220mmcenters.CavitytobefilledwithUThermo Matt6.JointsaretobetappedandjointedwithLafargeJointing Compoundandpreparedforpainting. Maximumheight:3600mm InstallationtobeinaccordancewithSABISA(SouthAfricanBuilding InteriorSystemsAssociation)installationguidelines

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• LafargeFixedPartition:112mm(2HourFireResistance) SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof112mmcomprising internalframingformedof64mmLafargegalvanizedsteelstudsfixed at600mmcenterstoLafargegalvanizedsteeltrackpositionedatfloor, headandwalls.Theinternalsteelframingistobedressedonbothsides withtwolayersof12,5mmthickLafargeFireCheckPlasterboard,stagger fixed,insinglelengthstosuitheight,buttjointedandsecuredtosteel studdingwith25mmdrywallscrewsatmaximum220mmcenters(first layer)and41mmdrywallscrews(secondlayer).Betweenthefirstand secondlayerofboardeachside,applyasheetof0,5mmgalvanized steel.JointsaretobetappedandjointedwithLafargeJointingCompound andpreparedforpainting. Maximumheight:3600mm InstallationtobeinaccordancewithSABISA(SouthAfricanBuilding InteriorSystemsAssociation)installationguidelines

• LafargeFixedPartition:126mm(Residential) SupplyandinstallLafargeFixedPartitionfromLafargeGypsumdrywall partitioningsystemwithanalloverthicknessof126mmcomprising internalframingformedof102mmLafargegalvanizedsteelstudsfixedat 600mmcenterstoLafargegalvanizedsteeltrack,anyadditional galvanizedsteelstuddingtoformdooropenings,glazingandother apertures,anglesandcornersandterminatedends.Theinternalsteel framingistobedressedonbothsideswith15mmthicktaperededge LafargePlasterboardinsinglelengthstosuitheight,buttjointedand securedtosteelstuddingwith25mmdrywallscrewsatmaximum220mm centers.Jointsandwallabutmentsaretobetappedandjointedwith LafargeJointingCompoundandpreparedforpaintingorwallpapering.All doorframes,glazingframesandglazingframestoconsistofeithersteel ortimberframesinstalledtomanufacturer’sspecifications. Wallandceilingjunctiontobedressedwithspecifiedcornicedetail.



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• ResidentialWallUnit(EntertainmentCentre) SupplyandinstallLafargePlasterboardentertainmentwallunit comprisingofLafarge51mm/64mmstudandtrack,galvanized25x 25mmx0,6mmLafargegalvanizedsteelangle,galvanizedcornerbead, flexibleplasticcornerbead,cladwith12mmLafargePlasterboard securedwith25mmdrywallscrewsat220mmcenterstospecificdesign as detailed.

Edgestobetrimmedwithcornerbead,fixedintopositionandjointedwith LafargeJointingPlaster,alternativelythecompleteunittobeflush plasteredin2mmthickLafargeFinishingCompound.

Maximumspacingofsupportstructure300mm,additionalbracingand supporttobefixedintopositiontocaterforadditionalloading,dependent onindividualdesignandlocationofentertainmentequipment.Designcan bemodularorcirculartocaterfordesigncriteria.

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Internalroomdivisionwall102mmStudSystem,15mmFirecheckplasterboard,Singlelayereitherside132mmOverall(60minutefirerating)100mmInsulation14Kg/m3

25mmdrywallscrews@220mmc/cfixedtoLafargestuds

102mmx34mmLafargesteelstuds@600mmc/cinsertedintotopandbottomtrack

1x15mmfirecheckplasterboardfixedtosteelstudsusing25mmdrywallscrews@220mmc/c-alljoints to be staggered

25mmdrywallscrews@220mmc/cfixedtoLafargestuds

100mmCavityBattInsulation

103mmx22.5mmLafargesteeltracksuitablyfixedtofloorandsoffit

MaximumHeight3600m

Internalroomdivisionwall&corridor102mmStudSystem,15mmFirecheckplasterboard,doublelayereitherside162mmOverall(120minutefirerating)100mmInsulation14Kg/m3

100mmCavityBattInsulation

103mmx22.5mmLafargesteeltracksuitablyfixedtofloorandsoffit

Lafargefibretapeand jointing compoundtoboards tapered edge

MaximumHeight3600m

41mmdrywallscrews@220mmc/cfixedtoLafargestuds102mmx35mmLafargesteelstuds@600mmc/cinsertedintotopandbottomtrack

Lafargefibretapeandjointingcompoundtoboardstaperededge

25mmdrywallscrews@220mmc/cfixedtoLafargestuds2x15mmfirecheck

plasterboardfixedto steel studs using 25mm/45mmdrywallscrews@220mmc/c-alljointstobestaggered

Typical residential wall divisions


General:

IdentifyallcomponentsaswellasprefabricatedcomponentsPlan,calculateandmarkthelayoutofthepartitionPlantherequiredmaterialquantities

Lafarge Gypsum steel framing:Fixthetracktothefloor,cutasrequired,rememberingtoleavespacefordoor openings. Plumbupwardstocorrectlypositionandinstalltheceilingtrackorhead/wallchannel

AlternatelyfixheadchanneltotheceilingandplumbdownwardsInsertadditionalstudsforcornersandabutments.Loadbearingstudsandsuitabletimberinsertshouldbeusedtoachievethestrengthrequirementsoftheframingassemblyandadequatelysupporttheweightofthedoor.

Insulation:Fitsecurelywithclosedjoints,leavingnogaps.Unlesstheinsulationisself-supporting,fixtheinsulationatheadofframeusing25mmx25mmgalvanizedangle.

Services:Allservicesaretobecompleted

Install Lafarge Plasterboard:EstablishastartingpointWheninstallingthefirstplasterboard,ensurethatthefirstjointwillbeplumb(asthewallmaynotbeplumb).Lineupthestudsasyouproceedfromhere,rememberthestudsarespacedat600mmcenters.Usesmallsectionsofplasterboardduringinstallationtokeepplasterboardsoffthegroundtopreventmoisturefromcreepinguptheplasterboards.Fixplasterboardstosteelframeworkusing25mmdrywallscrewsspacedat220mmcenters.Fixingsonplasterboardjointstobestaggered.

Vertical Joints:LightlybuttboardstogetherCenterjointsonstuds.Ensurethatthejointsonoppositesidesofstudsarestaggered.Fordoubl-layerboarding,staggerthejointsbetweenlayers.

Horizontal Joints:LightlybuttboardstogetherHorizontaljointswillnotbepermittedinwallslessthanorequalto3600mm,onlywallsover3600mm(exceedingthemaximumavailablelengthofboard).Agreepositionsofjointswherenotspecified,providehorizontalframingtosupportthehorizontaledgesofboards.Ensurethehorizontaljointsonoppositesidesofstudsarestaggered.Fordoubleboardlining,staggerjointsbetweenlayersbyatleast600mm.Providehorizontalframingtosupportthehorizontaledgesofthefirstlayeroftheplasterboard.


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Acoustics:RefertoLafargeGypsumspecifications.Soundseallocation,atjunctionsbetweendrywallframeandadjoiningstructure.Soundsealistobeprovidedasacontinuousbandtoclean,dry,dust-freesurfaces,leavingnogaps.Sealanygapsandservicepenetrations.

Fire stopping:Sealanygapsandservicepenetrationswithanintumescentsealanttopreventpenetrationofflame.

Fixing Plasterboard to Lafarge Gypsum metal studs:Singlelayer,fixsecurelytoallsupportsat220mmcentersusing25mmdrywallscrewsDoublelayer(outerlayer),fixsecurelytoallsupportsat220mmcentersusing41mmdrywallscrewsStaggerthedrywallscrewsalongplasterboardbuttjointsPositionthedrywallscrewsnotlessthan13mmfromcutedgesand10mmfromboundedgesofplasterboard

DeflectionHeads:Tobespecifiedbytheprojectstructuralengineer

Specification:InstallationtoconformtodetailasspecifiedbyLafargeGypsumandAAAMSA,SABISAGeneralSpecificationforDrywallPartitionsandLightweightinternalwalls.

Finishing:• Joints Material:LafargeJointingPlasterandFibatape Lightlysandcutedgesofplasterboardstoremovepaperburrs.Coverall joints,gapsandinternalangleswithLafargeFibatapeanddress withJointingPlaster.ForapplicationofJointingPlaster,pleasereferto manufacturer’sspecifications.

• FullSkim Material:LafargeFinishingCompoundandFibatape Lightlysandcutedgesofplasterboardstoremovepaperburrs.Cover alljoints,gapswithLafargeFibatapeanddressjointswithJointing Plaster.Applyskimcoattosurfaceareaasrequired.Forapplicationof FinishingCompound,pleaserefertomanufacturer’sspecifications.

• Corners Material:LafargeGypsummetalcornerbead Applycornerbeadtocornersbyfixingwithdrywallscrews. ApplyJointingCompoundtoexternalface.Forapplicationmethodsof JointingPlaster,pleaserefertomanufacturer’sspecifications.

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• PaintingPlasterFinishes: Sandjointssmoothusing80gritsandpaper Shouldlightsandpaperingberequiredonplasteredceilings,thiscan be done UseonlyPVAwater-basedpaint Consultpaintmanufacturerforrecommendations Drawingreference:

Wet Area Specification:

• Drywall:

Performance Criteria:Asperdrywallsystem

Framework: Studs:102mm,64mmx35mmLafargeStudsat400mmcenters FloorTrack:102mm,64mmx22,5mmLafargeTrackfixedwith tworowsofstaggeringfixingsat400mmcenters. HeadTrack:102mm,64mmxx22,5mmLafargeTrackfixedwithtworows ofstaggeredfixingsat400mmcenters Fixingdetailsasperspecification

Note:Additionaltimbersupportspositionedandfixedwithinstuds,as nogginsforsupportoffittings&fixture AdequatesupporttobeprovidedforHeadTrack

Deflectionallowance:Tobedeterminedbystructuralengineer

Lining: Asperdrywallspecification.Onelayerof12,5mmMoistureCheck Plasterboardasfacelayer. Plasterboardbackinglayerasrequired&specified Fixplasterboardwith25mmdrywallscrewsat220mmcenters Finishing:ApplyFibatapetoalljoints,skimjointswithLafargeJointing Plasterandifrequired,fullskimwithLafargeFinishingCompound.

Insulation: Cavityinsulation:1200mmx600mmx100mm,50mmCavityBatt


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• Tiling to Plasterboard: MetalStudPartition–CeramicTiles

Performance Criteria: Maximumallowableload:20kg/m2

Framework: Studs:“102mm,64mmx35mmLafargeStuds”at400mmcenters FloorTrack:102mm,64mmx22,5mmLafargeTrack HeadTrack:102mm,64mmx22,5mmLafargeTrack(unlessdetermined otherwisebydeflection) HeadCondition:Fixedtoundersideofstructuralsoffit. DeflectionAllowance:Tobedeterminedbystructuralengineer.

Lining: 1Layer12,5mmLafargeMoistureCheckPlasterboardsealedusing sealer.Screwsfirstlininglayerwith25mmdrywallscrewsat220mm centers.CavityInsulation:1200mmx600mmx100mm,50mmCavity Batt Finishing:ApplyFibatapetoalljoints,skimjointswithLafargeJointing PlasterandifrequiredfullskimwithLafargeFinishingCompound. Finishing Requirements:Tiledsurface LafargeCornerBeadtoallexternalcornersfinishedwithLafargeJointing Compound FibtapetoallinternalcornersfinishedwithJointingCompounds. SurfacePreparation: Mix20kgTylon“PlaskeyCI250”with10litresofTylon“Key-itCT117”. Applythemixturetodrywallwithablockbrush–thickness2mm. Allowtodryfor24hoursbeforecommencingtiling.

Ceramic Tiles: Alwaysfixtilestoprimeddrywall.UseTylon“WallnFloorCM11”tile adhesive.Applysubstratetoaminimumbasethicknessof3mm.Allow theadhesivetodryfor24hoursbeforegrouting. Shouldlarge,heavyorfloortilesbeused,thenthefloortrowelmustbe usedtospreadtheadhesivetoa6mmbeddedthickness.

Grouting: GroutwithTylonTieGrout“CE33”cement-basedgrout. FormorewaterresistancethegroutmustbemixedwithTylonBond-It (replacethewaternormallyusedinthemix). Alongthewalledgesandcornersapplysiliconinsteadofgrout.



• Tiling to Plasterboard: MetalStudPartition–PaintedSurface

Framework: Studs:“102mm,64mmx35mmLafargeStuds”at400mmcenters FloorTrack:102mm,64mmx22,5mmLafargeTrack HeadTrack:102mm,64mmx22,5mmLafargeTrack(unlessdetermined otherwisebydeflection) HeadCondition:Fixedtoundersideofstructuralsoffit DeflectionAllowance:Tobedeterminedbystructuralengineer

Lining: 1Layer12,5mmLafargeMoistureCheckPlasterboardsealedusing sealer Screwsfirstlininglayerwith25mmdrywallscrewsat220mmcenters CavityInsulation:1200mmx600mmx100mm,50mmCavityBatt

Finishing: ApplyFibatapetoalljoints,skimjointswithLafargeJointingPlasterandif required,fullskimwithLafargeFinishingCompound.

Finishing Requirements: Paintedsurface SealsurfaceofplasterboardwithTylonBond-it.Allow24hourstodry. PlasterthecompletesurfacewithLafargeFinishingCompound.Allow24 hourstodry. SealplasteredsurvacewithTylonBond-it.Allow24hourstodry. Paintsurfacewithmanufacturer’srecommendedpaintforwetareas.

Alongthewalledgesandcornersapplysiliconinsteadofgrout.

Inbothapplications,keeptheplasterboard10mmoffthefloorandbefore decorationsealthisgapwithsuitablesiliconeorPolysulphidesealant. Beforedecoration,sealallverticalandhorizontaljointswithsuitable siliconeorPolysulphidesealant.

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Construction Details for Wet Areas

WallDetailforBathRecess

WallBaseinShowerArea

Tileadhesive(compatiblewithwaterproofcompound)andceramictiles.

WaterproofCompound

MoistureCheck

Standard Plasterboard

Fixwallliningaboveexternaltray

AdditionalNoggingtosupportshowerbase

Fix50mmfromsheetbottomdonotfixthroughtrack

FlexibleWetareasealant

MortarbedExternalshowertray

Tileadhesive(compatiblewithwaterproofcompound)andceramictiles.

WaterproofCompound

MoistureCheck

FireCheckPlasterboard

FlexibleWetareasealant

Fix50mmfromsheetbottomdonotfixthroughtrack

Bath

FrameforBath

Mortarbed

Concreteorcompressedfibrecementfloor

Concreteorcompressedfibrecementfloor

5-10mm

5-10mm



Fixtures and Fittings:

Thereisawidevarietyofcomponentssuitableforsecuringfixturesandfittingstodrywalling.Generally,thechoiceofindividualfixingcomponentswilldependonthetypeofsystemsandtheloadingrequirements.

Thissectiongivesrecommendationsontheselectionofgenericfixings.

Considerthelayoutoffixturesandfittingsatthedesignstagetoallownecessarysupportstobeprovided.

Theguidancegivenisprimarilyconcernedwitfixturesatthetimeofinstallation.

Subsequentinstallationislesseasy,especiallyforheavierfixtureswhichwilloftenrequireidentificationofthebasicframeinhollowpartitions.

Fixing(otherthantosecurelightweightcomponents)shouldbemadeintostuds,fixingchannel,ortimbernoggins.

Mediumtoheavyweightcomponentsarerequiredtobesupportedbetweenstuds.

MethodsoffixingtoLafargePartitionSystems:

1. Pictures,Calendars,etc: Useeithera‘stick-on’typeofpicturehangerorthenailandhooktype asperdetail.EnsurethatthenailisdrivendownwardsintotheLafarge Plasterboardatanangleofapproximately20°.

2. Mirrors,Ornaments,etc: UseabutterflybolttypeoffastenerwhichisfittedontotheLafarge Plasterboardinanyposition.

3. MediumObjects(shelves): Fixthroughtheplasterboardintothedrywallstudwithself-tapping screws,orintoacross-memberbetweenstudswhichshouldbeprovided duringerectionoftheframing,oruseabutterflybolt-typefastener.

4. Heavy-DutyObjects(handbasins,cisterns,etc): Drywallstudsshouldbespacedmoreclosely(e.g.300mm).Run horizontaltimbernogginsofupto114mmx38mmordouble-nestedtrack channelsbetweentheverticalnotchedstudsandsecurewithscrew.Fix objects to noggins and studs.

5. Extra-HeavyObjects: Itemssubjecttoseverabuseorimpactshouldbesupportedbyasteel frameworkwhichisboltedtothefloorandstuds.

Note:PleasenotethatallplumbingandelectricalfittingdesignsneedtobesignedoffbythearchitectandneedtocomplywiththerequirementsofSANS10400:XA-2011

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For Light Fixture Loads For Medium Fixture Loads For Heavy Fixture Loads

Spit Driva PlusSpit Hallow Wall Anchor

Spit Driva Original

Spit Satelis

MFIX Cornet Fixing Channel or FS90W Cornet Flat Strap secured to studs with Lafarge Wafer Head Screws

Horizontal nogging and central stud of sawn softwood to suit size of Comet Metal Studs and notched into them and fixed through

300mm length of Cormet Stud screw fixed back to back to main stud with Lafarge self-tapping screws

Floor channel

Vertical timber framing as required

Drywall adhesive dabs

12mm plywood 560 x 1200mm

Lafarge Drywall Screws 100mm from stud centres

rebate on plywood

18mm plywood 600 x 300m

Cormet Metal Angle

Cormet U Track to secure back of plywood

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Fixtures

Very Light

Light

Medium

Heavy

Smallnotices,Messageboards

Mirrors,Floorstandingstorage,Lightfittings,Uniformhooks,Lightweightsignage

RadiatorsWallstorageWaterheatersShelvesX-raylightboxes

Wallmountedsanitaryware,Largewallstorage,Monitormountings,Patient bed hoists,Worktops,Nursingstations,Drugsafes,Disabledtoiletgrabrails

PicturehooksWoodscrews

SpitDrivaLDSpitDrivaOriginalSpitDrivaPlusFixingChannel

Spit Spring ToggleSpitHollowAnchorSpit SatelisFixingchannelTimberbattensBoxedstudsExtrastudsSeediagramsbelow

Seemanufacturer’sliteratureformaximumloadingsSeemanufacturer’sliteratureformaximumloadings

Seemanufacturer’sliteratureformaximumloadings

Seemanufacturer’sliteratureformaximumloadings

Fixture Load Examples Fixing Provisions NotesFixing to Lafarge WallboardsDrywallconstructioncanaccommodatemostfixturesprovidingtheappropriatefixingorfixingprovisionisutilised.Fixturescanbeattacheddirectlytothefinisheddryliningusingtherecommendedfixinggivenintableopposite.

Forthemediumandheavyweightfixingsintableopposite,itisveryimportantthattheplasterboardiscarefullyandaccuratelydrilledandthatallthefixingsareinstalledasperthemanufacturer’srecommendations.

Note:Ontheheavierfixtures,itisnecessary to use a minimum of four fixings.Holesshouldalwaysbedrilled and never punched.

For Light Fixture Loads For Medium Fixture Loads For Heavy Fixture Loads

Spit Driva Plus

Spit Hallow Wall Anchor

Spit DrivaOriginal

Spit Satelis Section of stud fixed to main studing

Vertical timber support

Timber horizontal

Section of stud fixed to main studing

Hand rail or patress frame

15mm plywood 600 x 300

Lafarge wallboard and studs as specified

Hand rail and support patress framing

Hand rail orpatress frame

Rebate on plywood

18mm plywood600 x 300mm

Cormet MetalAngle

Horizontal nogging and central stud sawn softwood to suit size of Cormet Metal Studs and notched into them and fixed through

Cormet or FS90W Cormet Flat Strap secured to studs with Lafarge Wafer Head Screws



Plasterboard Fitting and Fixing Details

1.LafargePlasterboard2.LafargeStuds

A/B/C-FixingtoplasterboardD-FixingtoStudE-FixingtoNogging

LafargeDrywallStud

DrywallScrew,FixingtoVerticalStudHollowWallAnchorWithHook

HollowWallAnchorWithWasher

NylonPlasterboardAnchor

DepthofDrywallScrews

CorrectDepth TooDeep Too Shallow

FixingtoNoggingDetail

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Lafarge Ceiling Systems

Standard Specifications for Ceilings

a) LafargeCeilingGridexposedFace24mm(1200x600system) SupplyandinstallLafargeCeilingGridexposedface24mmtee suspendedceilinggridsystem.Maintee’sspacedat1200mm&cross tee’sspacedat600mm(1200x600system) Ceilingtee’stobewhitecapped. Maintee’ssupportedat1200mmmaximum Grid Layout for Suspended Ceilings using

1200mm Cross T-Section

1. CrossT-Section1200mm2. MainT-Section3600mm@1200mmcts3. Suspension2.5mmStrainedWiremax1200mmcts.4. ConcreteSlab5. LafargeCeilingTiles

Typical suspension details

Suspension Details for Exposed Ceiling Grid

PurlinPurlinClip

Suspension2.5mmStrainedWire

1.6mmGolvAngleCleat Suspension2.5mmStrainedWire

ConcreteSlab

EyePin

ConcreteSlab

Suspension2.5mmStrainedWire


Onlysidefixingisrecommendedanditisnotrecommendedthatfixingsthatrelyonpullforceisused.Thefollowingminimumanchorsarerecommendedforsidefixing:

Typeofrooftrussorfloorjoists

Systemswithuptotwolayersofboard

Systemswiththreelayersofboard

Steel including light weight steel

One5mmx20mmTekscrew

Two5mmx20mmTekscrews

Timber

One6mmx30mmchipboardscrew

Two6mmx50mmchipboardscrews

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b) LafargeCeilingGridexposedFace24mm(600x600system) SupplyandinstallLafargeCeilingGridexposedface24mmtee suspendedceilinggridsystem.Maintee’sspacedat1200mm&cross tee’sspacedat600mmwith600mmcrosstee’sspacedbetween 1200mmcrosstee’sat600centers(600x600system) Ceilingtee’stobewhitecapped. Maintee’ssupportedat1200mmmaximum

Grid Layout for Suspended Ceilings using 600mm

Cross T-Section

1. CrossT-Section600mm2. MainT-Section3600mm@1200mmcts3. Suspension2.5mmStrainedWiremax1200mmcts.4. ConcreteSlab5. LafargeCeilingTiles

Sub-Grid Detail (Strained Wire)

Exposed Ceiling

Grid Layout for Lay-In Ceilings Subgrid detail

1. CrossT-Section1200mm@600cts2. MainT-Section3600@1200mmcts3. LafargeCeilingTiles4. StrainedWireof2.5mm5. SubGridChannel1200cts6. GalvAngleLateralsupports@1200cts


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Lay in Suspended Ceiling

• TheLafargeSuspendedCeilinggridisanexposedfaceteesystem. Thegridismanufacturedfromgalvanisedsteelwhichiscappedacross theexposedface.TheLafargeCrossTeehasaspeciallydesigned“clip” fixedateachend.This“clip”enablestheLafargeCrossTeeto‘click’into position,makinganaudible‘click’soundasitdoesso,therebyconfirming thattheteesectionislocatedcorrectly.• TheLafargeMainTeeendsaredesignedtoensurethattheMain Teeseasilylineuptoeachother,whileatthesametimeensuringa tighter connection.• TheLafargeCrossTeeistheneasilyclippedintopositionbyliningthe enduptotherightsideofthepre-punchedopeningoftheLafargeMain Tee.• TheoppositeLafargeCrossTeeistheninsertedinthesamemanner.• Theaudible‘click’soundconfirmsthatthecorrectlocationhasbeen foundandsignifiesthattheLafargeCrossTeeislockedfirmlyinto position.• ThesizeanddesignoftheLafargeCrossTeeandclipsfacilitatessimple andeasyassemblyoftheLafargeCeilingSystem• TheLafargeCeilingGridcanbedismantledasquicklyandsimplyasitis connected.Thisensuresahighdegreeofre-usabilityoftheLafarge CrossTees.

Dismantling Lafarge Ceiling Tees from Main Tees

Product Information• LafargeCeilingGridSystemscanbemanufacturedwithspecialfire expansionpunchouts.• Intheeventofafire,thesepunchoutsallowtheceilinggridtoexpand alongastraightline,thusmaintainingitsshapeforalongerperiodthan conventionalceilinggrids.• EndClip–lockingtype.• StitchingonLafargeMainandCrossteesforlateralrigidity.• Reinforcedandstablestructure.• LafargeMainTeeswithslots150mmapartandfirstslotat75mm.• LafargeCrossTees(1200mmand600mm)haveacentreslot.• LafargeCrossTees(600mmand500mm),havenotslots.



SpecificationSupplyandinstallLafargeSuspendedCeilingstitchedandgalvanisedsystem.Cappingtobewhite/black/greywiththeexposedfacebeing15mm,24mmor35mm.InstallationistobeinaccordancewithSABISA’sinstallation guidelines. Cross Section Details of Lafarge Ceiling Grid(Tees exposed)

Formulae to calculate materials for suspended ceilings:

Installationofgridshallbeinaccordancewiththemanufacturer’sspecification.

a) 1200X600mm Grid:

1. Maintees3600mmlongat1200mmcentres. MultiplytotalceilingareaX0.232=numberofmaintees.2. Crosstees1200mmlongat600mmcentres. MultiplytotalceilingareaX1.383=numberofcrosstees.3. Wallangle=totallengthofwalldividedby3.6=numberofwallangles.4. Suspensionhangersatmaximum1200mmcentres. Totalceilingareadividedby1.6=numberofhangers.5. LafargeCeilingTiles1195X595mm– Totalceilingareadividedby0.7=numberoftiles.

b) 600X600mm Grid:

1–4asabove5. Thenumberof1200mmcrossteesisthesameasthenumberof 600mmcrossteesrequired.6. LafargeCeilingTiles595X595mm–Totalceilingareadivided by0.36=numberoftiles.

c) 1500X500mm Grid:

1. Maintees3500mmlongat1500mmcentres. MultiplytotalceilingareaX0.191=numberofmaintees.2. Crosstees1500mmlongat500mmcentres. MultiplytotalceilingareaX1.334=numberofcrosstees.3. Wallangleandsuspensionhangersasperitems3&4of1200X600mm grid calculations.4. LafargeCeilingTiles1495X495mm–Totalceilingareadivided by0.73=numberoftiles.

NB:Thesecalculationsprovideapproximatequantitiesonlyanddonotallowforanywastage.

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Recommendations for the Suspension ofTee Systems

*Subjecttoloadingdetailsuspensionshouldnotnormallyexceed1200mmcentres.

• Thesuspensionmustnotbeoutofplumb(vertical)morethan25mmfor each150mmofplenumdepthandinnocaseshouldexceed500mmto a3000mmdepth.• Wheneveraboveisexceededand/orwhenthehangersuspension ismorethan3000mmlong,thenasubgridisrecommended.Should suspensionbeverticalthena4000mmdropwouldbeacceptable.• Subgrid,whenused,shouldbeformedusingBurgessChannel, alternativelypleasecontacttheLafargeTechnicalServicesDepartmentto discuss suspension options.• Innocaseshouldsuspensionbefromotherservicesintheceilingvoid.• Ahangersuspensionpointwithin300mmofthemainteejointmustbe installedwhenusinggridthathasfirepunchouts.• Ahangersuspensionpointwithin400mmfromthewallangleor shadowlineanglemustbeinstalledonmaintees.Wherecutcrosstees exceed600mmandrestonthecorniceadditionalsuspensionshouldbe installed.• Ifpoprivetsareused,theyshouldbesteelandnotaluminium.They shouldhaveashearstrength3timesthatofthemaximumallowedceiling load.• Whensecuringwiretoteeitshouldbewoundtightlyarounditselfatleast 3times.• Shouldtheceilingmassexceed20kg/m2andasubgridisrequiredthen aconsultingengineershouldrecommendsuitablesuspension.

Installation of the Exposed Grid System:

Step 1 (setting out the grid):• Strikealevelchalklinearoundtheperimeteroftheroomatthehightat whichtheceilingistobefixed.(Waterlevelsandlaserlevelsarethe mostpopularmethods).• Fixthewallangleonthislineusingscrewsandplugs,orflutednails,at maximum400mmcentres(foratidyfinish).Thewallanglesshouldnot restontopofeachotheratthecorners.Mitreandbutt-joinforatidy finish.

Steel Sections

• Establishthecentreoftheroomandmarkontheoppositewallsofthe room.

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• Afterdeterminingthedirectioninwhichthetileswillbeinstalled,start fromthecentreofonewallandmarkat1200mmintervals,finishingwith equalspacingsattheadjoiningwalls.Repeattheprocedureonthe opposite wall.• Tomarktheroomintheotherdirection,startonthecentrelinepreviously markedandmarkthewallat600mmcentres,finishingwithequalspacing atoppositeendsoftheroom.Marktheoppositewallinthesame manner.• Oncethetiledirectionhasbeendeterminedthefirstmainteesshouldbe trimmedtoaccommodatethefirstrowoftilesandlastrowoftilessothat thespacingisequalonbothsidesoftheroom.

Step 2 (installing the grid):• Fixhangerstothestructurespacedatmaximum1.2mcentres.Tofix hangerstoaconcretesoffit,use25X25anglecleatsmadefrom1.6mm material.• Thehangerscaneitherbe25X25mmangel,19mmgalvanisedhanger strappingortherecommended2.5mmdiameterpre-strainedsuspension wire.Cuthangerwirestoalengththatallowsthemtohang approximately200mmbelowtheceilingplane.Thisallowsenoughwire totietothemaintees.(25X25mmgalvanisedangleisusedtobrace ceilinggridfromupwardairpressurewhererequired).• Spanfishlinesatvariouspositionsacrossthewidthoftheroominline withthebottomsurfaceofthewallangle.• AttachtheLafargemainTeestothehangerswhichareat1200mm centres.Adjustthehangerssothatthefaceoftheteesectiontouches thefishlines.• Insertendsofcrossteesintorelevantmainteeslots.• Fitceilingtilestogrid.• Shouldholddownclipsberequired,use2holddownclipsperbord sharing.• Allperimeterandcutboardsmustbesecuredwithholddownclips.

Step 3 (Checking the grid):• Checkthehangersforthegridarecorrectlyspacedandadequately securedtothemainstructure.• Checkthattheundersideofthegridisperfectlylevel.Ifnot,adjust accordingly.• Checkthatthegridisadequatelyreinforcedwherelightfittingsaretobe suspendedfromtheceilingandinstalladditionalhangerswhere necessary.

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Tips for installing a ceiling:

• Iftheareaoftheconcealedceilingismorethan225m2,expansionjoints mustbeusedat15mintervalsinordertopreventcracking(this expansionjointsisusuallyspecifiedbytheprofessionalteam).• Fortheroomrequiringplasterboardforbothceilingandpartition,install theceilingfirst.However,ifspecificsoundinsulationisrequired,install thepartitionfirst.• Foranyceilingsystem,leaveenoughventilationabovetheceiling.This helpstopreventsagging.• Tocheckthelevelofaninstalledceilingspace,placea2mstraightbar onacheckingpoint.Thegapbetweentheceilingsurfaceandtheendof thestraightbarshouldnotexceed5mm.

Lafarge Lay-in Ceiling Grid System

Description Web Code Code Exposed Length Units per Mass kg Height Face mm box per box

24mmFaced1200/600CeilingSystemComponents

MainTee G38 WhiteGL4SMT BlackGL4SMT 24 3600 20 26.35

CrossTee G35 WhiteGL4SCT BlackGL4SCT 24 1200 60 22.82



24mm Faced 1500/500 Ceiling System Components

MainTee G38 WhiteGL4SMT BlackGL4SMT 24 3500 20 25.62



SUBGRIDFIX

CeilingTee

lafargesubGridChannel

GalvanisedAngle

SteelPopRivetorWaferTekScrew



Note On All Suspended Ceilings:

• Lightfittingsmayrequireadditionalsupportwherenecessary.• Airductingetc.shouldbesuspended/supportedonitsownsub-frame andshouldbeinplacebeforecommencementofceilinggridinstallation. Insulationmaterialscanbelaidovertheceilinggridsystemintheceiling void.Itisadvisable,thatwhenrequired,theinsulationmaterialbe installedbeforetheSub-GridDetail(HangerStrap)ExposedCeiling

Grid Layout for Lay-In Ceilings Subgrid detail

1. CrossT-Section1200mmcts2. MainT-Section3600/1200mmcts3. LafargeCeilingTiles4. StrainedWire2.5mm5. SubGridChannel1200mmcts6. GalvAngleLateralsupports@1200cts


35mm Faced 1200/600 Ceiling System Components

MainTee G38 WhiteGL4WMT BlackGL4WMT 35 3600 20 27.00

CrossTee G35 WhiteGL4WCT BlackGL4WCT 35 1200 60 27.00

CrossTee G35 WhiteGL4WCT BlackGL4WCT 35 600 60 13.50

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Ceiling Trim Details

Lafarge Gypsum Ceiling Tiles

LafargeGypsumCeilingTilesarearangeofreadytouseceilingtilesavailableinvariouspatternsandtextures.Theyaremadefrom12mmor9mmthickplasterboardandareavailableineithersquareedge.Thetoughandwashablevinylfinishisbondedtotheboardandthetilesareusedina“lay-in”exposedteesuspendedceilingsystem.Thesetilesaretestedforspreadofflame-SABS0177Part5.(NationalBuildingRegulations–forbuildingmaterial).

CareshouldbetakentoensurethattheLafargeGypsumCeilingTilesarenotdroppedorsubjectedtoroughhandling.Thesetilesshouldbestoredinadryareaandthestacksmustbepackedonsuitabletimersupports,maximum400mmapartandofftheground.Alevel,clean,drystorageareamustbemadeavailableforthispurpose.

Specialcareshouldbetakentoensurethatthetilefinishisnotsoiledordamagedduringhandling.Useofplasticgloveswillassistinkeepingtilescleanduringinstallation.Vinyltilescanbecleanedwithamilddetergentifnecessary.

Technical Data:DimensionalTolerance: +0-5mmFireIndex: Class4.ThermalConductivity: (k)0.17W/mCPackaging: 6perbundleWeight: 9.5kg/m2for12mm 7kg/m2for9mm

ShadowlineWallAngle

StdWallAngle(19mmx25mm)

ShadowlinePlasterTrim9mmBoard ShadowlinePlasterTrim

12mmBoard

NOTE:WhenFixingtobrickwall:UseSteelNails/Plugs&ScrewConcrete:Plug&Screws

Plasterboard:Togglebolts(foundtobethebestfixing)

PLEASENOTE:FixingsSpacingtobe400mmcts.

TypicalWallAnglefixedtobrickwall

TypicalWallAnglefixedtobrickwall



Lafarge Ceiling Tiles

*Fissuredtileshavedirectionalpatterns

Vapourbarrierscanbelaminatedtothebackofceilingtilesasanoptionalextraforhumidareas

FeaturesALafargeplasterboardceilingtilewithvinyldesigncoveredonthesurface,allowingforimmediateusewithoutadditionalpainting.

Advantages• Lightweight• Durable• Welldecoratedsurface• Easytouseandquicktoinstall• 91%lightreflection(perforatedtiles)• Noncombustable,fireretardantcore

Applications• Offices• Schools• Conferencecentres• Departmentstores• Factories• Hospitals• Paintedtile: - Restaurants -Entertainmentcomplexes

LafargeCrossTeeUniversalClip

LafargeLay-inCeilingTiles

LafargeCrossTee

LafargeMainTee

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Specification:LafargeCeilingGridexposedface24mmgridsystemlay-invinylceilingtiles(9mm)

LafargeGypsumVinylCeilingTilesSupplyandinstallLafargeCeilingTilestoLafargeCeilingGridexposedface24mmgridsystemlay-invinylceilingtiles(9mm).ShellWhite,Fissured,Reef,tomanufacturer’sspecification.Installationtobeinaccordancewithmanufacturer’sspecificationsincludingSABISA(SouthAfricanBuildingInteriorSystemsAssociation)installationguidelines







Specification:

LafargeThermalCeilingTileswithVinylFace15mmStyrenebackingSupplyandinstallLafargeThermalCeilingTilestoLafargeCeilingGridexposedface24mmgridsystemlay-invinylceilingtiles(12mm)–(9mm).ShellWhite,Fissured,tomanufacturer’sspecificationsincludingSABISA(SouthAfricanBuildingInteriorSystemsAssociation)installationguidelines



*Fissuredtileshavedirectionalpatterns

Vapourbarrierscanbelaminatedtothebackofceilingtilesasanoptionalextraforhumidareas

FeaturesALafargeplasterboardceilingtilewithvinyldesigncoveredonthesurface,allowingforimmediateusewithoutadditionalpainting.

Advantages• Lightweight• Durable• Welldecoratedsurface• Easytouseandquicktoinstall• 91%lightreflection(perforatedtiles)• Noncombustable,fireretardantcore

Applications• Offices• Schools• Conferencecentres• Departmentstores• Factories• Hospitals• Paintedtile: - Restaurants -Entertainmentcomplexes

Vinyl Tile Code Nominal Thickness Type Dimension Reef JVTLR 1200mmx600mm 9mm Squareedge JVTLR 600mmx600mm 6.6kg/m2

JVTLR 1200mmx600mm 12mm Squareedge JVTLR 600mmx600mm 8.78kg/m2 JVTLR 1500mmx500mm

Fissured* JVTLF 1200mmx600mm 9mm Squareedge JVTLF 600mmx600mm 6.6kg/m2 JVTLF 1200mmx600mm 12mm Squareedge JVTLF 600mmx600mm 8.78kg/m2 JVTLF 1500mmx500mm

Shell JVTSWH 1200mmx600mm 9mm Squareedge White JVTSWH 600mmx600mm 6.6kg/m2

Painted and Perforated Ceiling Tiles

Reef

Fissured

Shell WhiteJVTSWH 1200mmx600mm 12mm SquareedgeJVTSWH 600mmx600mm 8.78kg/m2JVTSWH 1500mmx500mm

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Timber Brandering

c) 6.4mmLafargeGypsumplasterboardceilingconsistingofSABS approvedS.A.Pinefixedat400mmcentresinonedirectionontowhich LafargePlasterboardisfixed,brownpapersideup,atrightanglesto thebrandering,using32mmgalvanisedsemi-cloutnailsspacedat 150mmcentres.JointsbetweenboardstoconsistofH-Stripfittedover boardedgeswiththenarrowflangefacingdownandboardsfixedonto branderingtowithin25mmfromH-Strip.Allnailorscrewsheadstobe stoppedandsandedlevelwhendry.

1. TheBeam2. TimberBrandering“38x38”[email protected]. WallPlate4. LafargePlasterboard5. H-profilejoiningstrip6. Wall

d) 6.4mmLafargeGypsumplasterboardceilingconsistingofLafargeSteel branderingfixedat400mmcentresinonedirectionontowhichLafarge Plasterboardisfixed,brownpapersideup,atrightanglestothe brandering,using25mmdrywallscrewsspacedat150mmcentres. JointsbetweenboardstoconsistofH-Stripfittedoverboardedgeswith thenarrowflangefacingdownandboardsfixedontobranderingtowithin 25mmfromH-Strip.Allnailorscrewsheadstobestoppedandsanded levelwhendry.



Steel Brandering

1. TheBeam2. TimberBrandering“38x38”[email protected]. WallPlate4. LafargePlasterboard5. H-profilejoiningstrip6. Wall7. Suspensionbracket

Steel Brandering should be installed as follows:

a) Steelbranderingsectionsmustbefixedat90°totherooftrusses.b) ThesuspensionbracketistobefixedtotheTie-beambyeithernailor screwatamaximumof1200mmcentresandlocatedintotheLafarge Steel Brandering.c) LafargeSteelBranderingistypicallyinstalledat400mmcentres.d) TheLafargePlasterboardshouldbefixedat90°totheLafargeSteel Branderingi.e.paralleltotherooftrusses,withscrewsornailsspacedat amaximumof150mmcentres.e) TheLafargeSteelBranderingsystemisnotsuitableforplasteredceilings orfor9mmand12mmboardceilings.f) Tojointwosteelbranderinglengths,ajoinersectionmustbeused.g) Itisadvisabletofixa20X20mmsteelangletotheperimeterwallsasa supportfortheLafargeSteelBranderingandLafargePlasterboardfixing, thiswillensureasolidbaseforcornicefixing.h) Lightfittingsmustbefixedtothebranderingorconductnotdirectlytothe board.

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Lafarge Gypsum 75mm Gypsum Cornice Detail

1. Longitudinalbrandering@400mmcts2. CrossBrandering@parameters3. LafargePlasterboard4. LafargeCornice5. FixingPoint6. Plaster7. Wall

LafargeCoveCorniceconsistsofagypsumplastercoreencasedinpaper.Itisprimarilydesignedforuseasacorniceattheanglebetweenwallandceiling.Itiseasytocutandfixandissuitablefordecoration.TheLafargeCoveCorniceisavailableinlengthsof2.7m,3m,3.6mor4,2mandhasawidthof75mm.Themassperlinearmeteris0.72kg.

Performance:

• Fire Protection:Whenexposedtofire,LafargeCoveCornicebehavesin thesamewayasLafargePlasterboard.

• Durability:LafargeCoveCornicehasthesamelifeexpectancyasa house/buildingundernormalconditions.Ifexcessmovementoftheroof structureisexpected,fixcornicetowallonly.

• Acoustic Properties:LafargeCoveCornicecanbeusedforsealingany airpathsaroundceilingperimetersthushelpingtomaintainsound insulationperformancefromroomtoroom.



e) 6.4mmLafargeGypsumplasterboardceilingconsistingofLafargeSteel branderingfixedat300mmcentresinonedirectionontowhichLafarge Plasterboardisfixed,brownpapersideup,atrightanglestothe brandering,using25mmdrywallscrewsspacedat150mmcentres.Readytoreceiveplasterfinish

Plasterboardjointstohavesupportbehindwithplasterboardfixedat150mmcentresAlljointstobecoveredwithFibatape(doubleoverbuttjoints)andtheceilingthenplasteredwitha2-3mmplastercoatofLafargeSkim-LiteorSkim-Stoneplasterappliedaspermanufacturer’sinstructions.AlternativelyLafargeFinishingCompoundcanbeusedtoplaster.

1. TheBeam2. SteelBrandering“38x38mm”@300mmcts.3. WallPlate4. LafargePlasterboard5. PlasteredCeiling6. Wall7. Suspensionbracket

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General.

• LafargePlasterboardmustalwaysbefixedwiththelengthoftheboardat rightanglestothebrandering.LafargePlasterboardisfixedwiththe brownpapersideup(ivorypapersidedown)fordirectdecorationorfor plastering.Alwaysnailorscrewfromthecentreoftheboardoutwards. Thegapbetweenboardsshouldnotexceed2mm.

• Fixthefirstboardupto150mmfromlongedge.SliptheH-Stripover theedgeoftheboardwiththenarrowflangefacingdown.Slipthe secondboardintotheH-Stripandfixbothboardstowithin25mmfrom theH-Strip.TheH-Stripisnotfixedatall.Inthecaseofendjointsfix parallelbranderswiththeendsofbothboardsoverlappingtherespective brandersbymaximum35mm.

Fixtaper-edgeLafargePlasterboardatrightanglestobranderingsothatthebuttjointsfallonabrander.Nailorscrewat150mmcentres.Alljointsshouldbejointedasper“handjointingapplication”detail.

Decoration:

• ForH-Stripceilingsfillallnailandscrewheadsandsanddownwhen dry.ApplyuniversalundercoatovermetalHstripsandapplythe 1stcoat,agoodqualityPVAemulsionbasedpaintandafinal coatasspecified.

• Forplasterceilingschecktheentiresurfacecarefullytoseethatthe plasterhassethardandisdryandfreefrompowder/dustbefore decorating.Ifpaintedwithwaterbasedpaints“PVA”nosealercoat necessary–recommendedthatfirstcoatedbewatereddown10%and finalcoatapplied.Ifpaintedwithoilbased“solvent”paints,surface requiresasealercoat–bondingliquid.

• 9mmand12mmFlushJointedceilingsshouldhaveafirstcoatofgood qualityPVAemulsionbasedpaint,followedwiththefinalcoatof householdpaintasspecified.

Maximum35mmcantilever



f) 6.4mmLafargeGypsumplasteredceilingconsistingofSABSapproved SAPinebranderingfixedat300mmcentresinonedirectionontowhich 6.4mmLafargePlasterboardisfixedatrightanglestothebranderingwith brownpapersideupusing32mmgalvanisedcloutorsemi-cloutnails spacedat150mmcentres.Ordrywallscrewsfixedat150mmcenters

Plasterboardjointstohavesupportbehindwithplasterboardfixedat150mmcentresAlljointstobecoveredwithFibatape(doubleoverbuttjoints)andtheceilingthenplasteredwitha2-3mmplastercoatofLafargeSkim-LiteorSkim-Stoneplasterappliedaspermanufacturer’sinstructions.AlternativelyLafargeFinishingCompoundcanbeusedtoplaster.

1. TheBeam2. SteelBrandering“38x38mm”@300mmcts.3. WallPlate4. LafargePlasterboard5. PlasteredCeiling6. Wall

6.4mm Flush Plastered Ceiling

6.4mmLafargePlasterboard

FibaTapeSkimmingCompound

SteelBrandering38x38mm

38x38mm

38x38mm

300

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g) 9mm/12mmLafargeGypsumFlushJointedorFlushplasteredceiling consistingofgalvanisedplastergridscrew-up3600mmmainteesspaced at1200mmcentresand1200mmcrossteesspacedat400mmcentres, formingagalvanisedgrid,suspendedtomanufacturesspecification,onto which9mm/12mmtaper-edgeLafargePlasterboardisfixedwithbrown papersideupusing25mmdrywallscrews,spacedat150mmcentres. Allplasterboardjointstohaveasupportbehind.Alljointsandorplasterto befinishedaspermanufacturersinstructions.

Grid Layout for Plastered Ceilings using 1200mm Cross T-Section

1. CrossT-Section1200mm@400cts2. MainT-Section3600mm3. Suspension20x20/[email protected]. ConcreteSlab5. Lafarge9mm/12mmTaperEdgePlasterboard

Suspended Plaster Grid

LafargePlasterGridisasuspendedconcealedceilinggridsystemconsistingof3.6mmainteesand1.2mcrosstees.Crossteesareinsertedat400mmcentresinthemaintees.Theteesaregalvanisedsteelwithaknurled35mmface.Thisgridissuspendedusinggalvanisedangleensuringrigidityandstability.9mmor12mmboardsarescrewedtothegridusing25mmdrywallscrews and the joints are taped and jointed.



Lafarge Plaster Grid System (Gridlock)

Lafarge Plaster Grid System (Nordgrid)

Specification:

SupplyandinstallLafargePlasterGrid,stitchedandgalvanised35mmfacesystem.Maintees3600mmwithslotsat400mmcentres.1200mmCrossTeeswithsteelgalvanisedknurledcapfacetomainandcrosstees.

Material calculations for Lafarge Plaster Grid:

1. Maintees3600mmlongat1200mmcentres.Multiplytotalceilingarea X0.232=numberofmaintees.2. Crosstees1200mmlingat400mmcentres.Multiplytotalceilingarea X2.08=numberofcrosstees.3. ShadowlinePlastertrim=Totallengthofwalldividedby3.6=number ofshadowlineplastertrim.

Aluminium Sections

4. Suspensionhangersatmaximum1200mmcentres.Totalceilingarea dividedby1.6=numberofhangers.5. LafargePlasterboardm2ofboarddividedintototalceilingarea=number ofboards.

Otheritemssuchasscrews,Fibatapeandjointingorfinishingcompoundshouldalsobeincluded,pleasecontactLafargeTechnicalServicesDepartmentforassistance.

Description Web Code Exposed Finish Length Units per Mass kg Height Face mm box per box MainTee G38 GL4PMT 35 Galvanised 3600 20 27.00

CrossTee G38 GL4PCT 35 Galvanised 1200 60 27.00

Description Web Code Exposed Finish Length Units per Mass kg Height Face mm box per box MainTee N38 NGPMT 35 Galvanised 3600 25 33.00

CrossTee N38 NGPCT 35 Galvanised 1200 75 33.00

PlasterCeilingJunctionDie6639

PlasterTrimAluminiumDie6640

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Forplasteredceilingswherethesuspensionheightismorethan3000mm,sub-gridrequired.Typicaldetailattached

Grid Layout for Ceilings subgrid detail

1. CrossT-Section1200mm@400cts2. MainT-Section1200mm3. LafargePlasterboard4. GalvAngle20x20/25x25@1200cts5. SubGridChannel6. WaferTekFixing7. GalvAnglelateralsupports@1200cts

Sub-GridDetail

Lafarge Main suspension Methods for Ceiling Grid

GalvanisedAngle

SteelPopRivetorWaferTekScrew

LafargeSubGridChannel

CeilingTee

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9mm & 12mm Flush Plastered Ceiling

h. 15mmLafargeGypsumFireCheckflushplasteredceilingconsistingof galvanisedplastergridscrewup3600mmmainteesspacedat1200mm centres,fixedtosupportstructurewith0.8mmgalvanisedanglesspaced at400mmcentres,supportstructurespacedatmaximum1200mmand bracedtopreventlateralmovement,1200mmcrossteesspacedat 400mmcentres,formingagalvanisedgrid,suspendedtomanufactures specification.Plasterboardtobefixedat150mmcentres,withbrown papersideup.Staggerfixtoplasterboardjoints,firstlayerfixedwith 25mmdrywallscrews,secondlayerfixedwith41mmdrywallscrews. Allplasterboardjointstohavesupportbehind.Insulationlayerover ceiling.Surfacetobeflushplastered.

Fire Rated Ceiling SystemsFire Rated Suspended Ceiling Systems

1. CrossT-Section1200mm@400mmcts2. MainT-Section3600mm3. Suspension25x25x0.8mmGalvAngle@max400mmcts4. PlastertoCeilings5. Lafarge15mmFireCheckTaperEdgePlasterboard6. 4,2x13WaterTekScrews2perjunction7. 14kgfm3100mmInsulation.8. BeamLateralSupport

• Beamsizeandspecificationsbyothers.• MaximumSuspension3m.• Beamlateralsupport@1200cts.

Onlysidefixingisrecommendedanditisnotrecommendedthatfixingsthatrelyonpullforceisused.Thefollowingminimumanchorsarerecommendedforsidefixing:

PlasterGrid

9/12LafargePlasterboard

FibaTapeSkimmingCompound






One5mmx20mmTekscrew


Timber




Onlysidefixingisrecommendedanditisnotrecommendedthatfixingsthatrelyonpullforceisused.Thefollowingminimumanchorsarerecommendedforsidefixing.

Suspendedceilingtofireresistantwalljunction

Fixed Fire Rated Systems

Maximumcentre-to-centredistanceallowedbetweenthetimbersupportsis600mm.Thesizeofthetimbersupportsneedtobespecifiedbyastructuralengineer.

Installation details of Plasterboards to the suspended grid or timber supports

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One5mmx20mmTekscrew


Timber



LowRes!!

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75mm Lafarge Cove Cornice detail for fire property specification

Grid Layout Fire Resistance Plastered Ceiling

1. PlasterGrid2. Supportingbeam3. 15mmFireCheckPlasterboard4. CoveCornice5. Fixings6. PlastertoCeilings7. [email protected]. 4,2x13WaferTekScrews.9. 14kg/m3100mmInsulation

• Beamsizeandspecificationsbyothers.• MaximumSuspension3m.• Beamlateralsupport@1200cts.

10mmGapforexpansion

GypsumPlasterInfil

84



Lafarge Decorative Mouldings

LafargeDecorativeMouldingsaremadeofhighdensitymouldedpolystyrene;thesemouldingsareextremelydurableandwillnotchipifdropped.Cutsanddentscanbefilledwithutilityadhesive,reducingwastesignificantly.

TheLafargerangeofmouldingsiswaterandhumidityresistant,makingthemanexcellentchoiceforbathroomsandhumidareas.

Whiledirectheatplacedtooclosetomouldingscandamagethem,thelargerprofilescanbeusedtoconceallowvoltagefluorescentlightingwithaclearanceofapproximately5cm.

Product Information:• Highdensitymouldedpolystyrene• Smoothwhitesurfacereadyforpainting• Availablein2mlengths• Meltingtemperatureis80°C• Non-toxic• Weightisapproximately8Kg/100m• PaintshouldbeacrylicwaterbasedPVApaint.Enamelpaintcanbeused butaprimerofPVApaintisrequired.

Storage Information:• TheLafargeDecorativeMouldingsstoredincoldorhotconditionsshould beallowedtostabilizetoambienttemperatureforabout24hoursinthe roomorsitebeforeinstallation.• Themouldingsshouldnotbestoredinshippingcontainersasthe temperaturesinsidecanexceed60°Cinsummer.• LafargeDecorativeMouldingsexpandandcontractwiththetemperature andmustbeinstalledtightly.

LAFARGE CORNICE UTILITY ADHESIVE:

Application:• Substratesmustbeclean,freeofdustandgrease.• Applyaliberalbeadofadhesivealongtopandbottomofcornice.• Pressfirmlytoholdinposition.• Wipeawayexcessadhesivewithadampspongeorcloth.• Keepawayfromfrost.

Forfixingpolystyreneandpolyurethane:• Excellentadhesiveandfillingproperties.• Goodinitialgrab.• Suitableforpainting.• Nofilmformation.

Characteristics:• Acrylicpolymer.• Highinitialtackandfinalbondstrength.• Excellentadhesiontopaperandwalls.• Flowpropertiesdesignedasapastetobeappliedwithascraperorspatula.

Board description

15mmFireCheck

15mmFireCheck

15mmFireCheck

Numberoflayers

Onelayer

TwoLayers

ThreeLayers

FireResistance

30minutes

60minutes

120minutes


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Specifications:• Consumption: 70-150gsm• GlueSpread: 50g/mforsmalltomediummouldingsonneworstraight walls. 100g/mforlargemouldingsonneworstraightwalls. 100g/mforsmalltomediummouldingsondamagedor unevenwalls. 200g/mforlargemouldingsondamagedorunevenwalls.• LafargeCorniceUtilityAdhesiveisavailablein310mltubesand3kgand 7.5kgbuckets.

Dilution of adhesive not recommended

Cleaning of equipment:• Cleanequipmentwithwaterbeforeadhesivedries.• Driedadhesivecanbemanuallybrushedorscrapedusinghotwater.

Storage:• Storebetween15°Cand30°Cunderdryconditions.• Unusedcontainersshouldbetightlysealed.• Shelflifeisapproximately12monthswhenstoredcorrectly.

PleasecontactLafargeGypsumforfirstaidmeasuresifrequired.

LafargeRoman

LafargeGrecian

LafargeClassic

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LafargeNeoClassic

LafargeDoric

LafargeClassic 110

LafargeClassic 110

LafargeMilano


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Fixing Instructions for Cornices

Lafarge Cove Cornice:

1. Measuredistancedownfromtheceilingandmarkitonseveralplaceson thewall.Shootachalklinealongthesemarksonthewall.Inserttemporary nailsat1meterintervalsjustbelowthechalkline.2. Fixatimberstopalongthebaseofthemitreboxdistancefromthevertical side.PlacetheLafargeCoveCorniceinthemitreboxasperbelow diagram.3. Usingafinetoothsaw;cutandmitretherequiredlengthsofLafargeCove Corniceinamitrebox.

LafargeCyprus

LafargeTuscany

LafargeNapoli

LafargeCoreCornice

TimberStop

MitreBox

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4. GuidetheLafargeCoveCorniceoverthetemporarynailsandpress firmlyintopositionagainstthewallandceiling.Inserttemporarynailsinto ceilingtoholdcornice.Fixthecorniceat400mmintothewallandceiling usingsteelnailsordrill,plugandscrew.Onpaintedsurfacesawater- basedplasterbondingliquidshouldbeapplied.Patchimperfectionsand decorateasyouwouldplasterboard.Alternativelyfixthecornicewith suitablecorniceadhesive.

NB: Always carry cornice on edge.Note:Cornicesarepurelydecorativeanddonotcontributeinanywaytothestructuralperformanceofabuilding.Ifexcessmovementoftheroofisexpected,fixcornicetothewallonly.Fillgapswithcorniceadhesivesuitableforpainting.

Lafarge Decorative Mouldings:

1. Measuredistancedownfromtheceilingandmarkitonseveralplaceson thewall.Shootachalklinealongthesemarksonthewall.Insert temporarynailsat1meterintervalsjustbelowthechalkline.2. Fixatimberstopalongthebaseofthemitreboxdistancefromthe verticalside.PlacetheLafargeDecorativeMouldingupsidedown(i.e. thebottomfacingupwards)inthemitrebox.PleaserefertotheLafarge DecorativeMouldingssectiontoensurethatyouhavethepatternthe correctwayup.3. LafargeDecorativeMouldingsshouldbecutwithafinetoothedpanel saworfinehacksaw.Thiswillgiveacleanedgewithoutdamagingthe product.Donotcutwithaknifeorhotwire.Cutandmitretherequired lengthsofLafargeDecorativeMouldingsinamitrebox.Ifusing patternedcornice,extremecaremustbetakentomatchthepattern whereajointoccurs.See“Preparingjointsandcornermitresofcornices” sectionforfurtherdetailsonhowtocutandmitre.TheLafarge DecorativeMouldingstobeinstalledshouldnormallybecutslightly longerthanactuallengthrequiredtobeinstalled.Thisistogiveatightfit to the joints.4. Spreadcorniceadhesivealongedgesandbackofmouldingandateach end.Useenoughadhesivesothattheentiresurfaceofthecutedgeat eachendiscovered.Alljointsmusthaveadequateadhesiveforastrong hold.5. GuidetheLafargeDecorativeMouldingoverthetemporarynailsand pressfirmlyintopositionagainstthewallandceiling.Themouldings mustbeinstalledonlevelandfirmsurfaces.Oncegluedontoceiling/ wall,fastenwithnails/screwsorpanelpinsespeciallyclosetothe jointsandedgesofthemouldingfortightandsecurefit.Mouldingsmust besecurelyfixedatalljoints.Shouldfixingsberequired,thenfixingsto beat300mmcentres.Largemouldingsrequiredadditionalsupporton eithertheverticalorhorizontalsurfacesforpositivefixing.

Painting Lafarge Decorative Mouldings:

• Polystyrenemouldingscanbepainteddirectlywithanyacrylicwater based paint. • PVApaintwouldberequiredbeforeapplyinganyenamelorsolvent based paint. • Themouldingswillturnyellowifleftunpainted.


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• Itisadvisabletoapplyabasecoattothemouldingsbeforeinstallation.• Ensurethatadhesivetouch-upsaresandedleveltothemouldingprofile.• Painttechniquescanbeappliedtomouldingsbyspecialists.

Preparing Joints and Corner Mitres of Cornices

Types of corner mitres:Therearefourdifferenttypesofmitrecut:ExternalAngles–LefthandandRighthandInternalAngles–LefthandandRighthand.

Mitred Joints:

Tocutalefthandcornermitre,positionthemitreblocktotheleftofthelengthofcorniceandlineupthemeasuredmarkwiththeappropriatemitreblockslot(dependingonwhethertheangleistobeinternalorexternal).Similarly,positionthemitreblocktotherightofthelengthofcornicefortherighthandcorners.

BEFORE STARTING, NOTE WHICH WAY UP THE CORNICE SHOULD BE FITTED

Rememberthatallmarks,measurementsandcutsmustbemadefromthebackofthecornice’swalledge.Whenmeasuringformitresorbuttjoints,trytoensureagoodpatternmatchatthemeetingedges.Thisisespeciallyimportantwithexternalmitres,whicharegenerallymorevisible.So,wheneveramitreisrequired,measurethedistancebetweentheendofthelastfixedlengthandthecorneroftheroom.Markthismeasurementonthebackwalledgeofthenextlengthofcornice–makingsurethepatternmatchesateachpoint.

Cutting Cornice:

Whenusingthemitreblock,itisagoodideatokeepthecornicesupportedandlevelusingapieceofwoodthesamethicknessasthebaseofthemitreblock.Placethecorniceupside-downinthemitreblockwiththewalledgeuppermost,flatagainsttheside,andtheceilingedgeflatagainstthebase.

LafargeCoveCornice

TimberStopMitreBox

LeftHandLeftHand

RightHand RightHand

InternalAngleExternalAngle

Measurefromendoflastlength to corner

Markthismeasurementonbackofthemoulding

Cutmouldingtothisdimension

Ceiling

AdhesiveMoulding

Fixing@300mmcentre

Fillfixingwithadhesive/fillerincludinggapsbetweenwallandmoulding

Typesofcornermitres:Therearefourdifferenttypesofmitrecut:ExternalAngles:LefthandandRighthandInternalAngles:LefthandandRightHand

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BottomHinged

Opening Solutions

Ceiling Access PanelsMaximisingCeilingSpaceAccessibility

LafargeGypsum’sinnovativenewCeilingAccessPanelsofferacosteffective,aestheticallypleasingalternativetotheconventionalgypsumtrapdoors,ensuringthatyourtrapdoorslookneatandcleanallthetime.

Modernandveryfunctional,CeilingAccessPanelsareavailableinthreedifferentconfigurationstocaterforyourspecificrequirements:

•TopHinged•BottomHinged•Layin

TopHinged

Layin


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Benefits

LafargeGypsum’squalityCeilingAccessPanelsguaranteealonglifespan.Time-savingandeasytoinstall,thepanelscomecompletewithfullydetailedfixinginstructionsforquickonsiteinstallation.

Duetothepowdercoatedfinish,ceilingaccesspanelsareeasytoclean-makingunsightlyfingermarks,thatareprevalentonconventionalgypsumtrapdoors,athingofthepast.aestheticallysuperiortogypsumtrapdoors,theyofferaneat,cleanfinishtoceilings

T-Frames

“T”SectionCentreLineCeilingmodulargridsarecommonlyusedforconventionaltrapdoorframesinplasteredceilings.Theycanalsobeusedforlightfittings.

Thesegridsareavailableex-stockinthefollowingsizesandfinishes:600x600NaturalAnodised600x600White1200x600NaturalAnodised1200x600White

Configurations

Modernandveryfunctional,LafargeGypsumCeilingAccessPanelsareavailableinthreedifferentconfigurationstocaterforyourspecificneeds.

Specifications

AllowextraoverceilingforCeilingAccessPanelcomprising635x635mmwhiteepoxycoatedaluminiumT-framewith580x580mmwhiteepoxycoatedsteelpanina[Tophinged/Bottomhinged/Lay-in]optionassuppliedbyLafargeGypsumfittedflushtoceilingwithandincludingscrewfixingthroughstalkofT-frameinto38x38mmsoftwood/steelbrandering/supportingsub-frame.

TopHinged BottomHinged LayIn

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92 Technical Manual South Africa

Flush Plaster Timber or Steel Branded Ceilings

Typical3DimensionalSteelBrandingConstructionDetailTypicalJointDetailfor6,4mmPlasterboard

Flush Plaster Steel T-Suspension Ceilings

Fixframetobrandering

TOPHINGED

AccessPanel FlushCeiling

AluminiumT-ProfileOuterFramePowderCoatedWhite

Brandering

Fixframetobrandering

Brandering

FlushCeilingAccessPanel

BOTTOMHINGED

CamLock 25x25mmAluminiumOuterFrame

Galvanised25x25mmAngleLafargeScrewupCrossTee

PopRivets

TOPHINGED

AccessPanel FlushCeiling AccessPanel

CamLock

BOTTOMHINGED

PopRivets

LafargeScrewupCrossTee

FlushCeiling

25x25mmAluminiumOuterFramePowderCoatedWhite

AluminiumT-ProfileOuterFramePowderCoatedWhite

Galvanised25x25mmAngle


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Notes:

lafarge technical brochure

Documents