Plasterboard Installation Guide - Knauf Australia
PlasterboardInstallation GuideLow Rise Residential Dwellings
DisclaimerKnauf strives to provide to itscustomers and users the bestproducts, advice and guidance thatit can. Online advice is necessarilyof a general nature. Customers andusers remain responsible for theirown choices on design and quality,and for compliance with industryand legal standards beyond thosewhich Knauf itself warrants.About KnaufProducts manufactured andsystems designed by Knauf areproduced in accordance with theBuilding Code of Australia andrelevant Australian Standards.Information in this document isto be used as a guide only andis subject to project approval asmany aspects of construction arenot comprehensively covered. Itis also the responsibility of theproject to determine if Knauf’sproducts and systems are suitablefor the intended application. KnaufPlasterboard Pty Ltd will not beheld responsible for any claimsresulting from the installation ofits products or other associatedproducts not in accordance withthe recommendations of themanufacturer’s technical literature orrelevant Australian Standards.Knauf’s comprehensive range of quality wall and ceiling lining products aredeveloped with specific characteristics to enhance performance and provide fire,water, acoustic and decorative solutions to all construction projects.Knauf has manufacturing facilities around the world and offers a wide range ofsolutions for lightweight construction.These include metal framing, insulation, plasterboard linings, adhesive, jointingcompounds, cornice, wet area sealant along with fire and acoustic sealants.Knauf is committed to providing excellent technical service and sales support tocontinually improve the quality of current products and systems, and to identifyinnovative products, systems and solutions.In Australia, Knauf has manufacturing facilities located in Sydney, Melbourne,Bundaberg and Brisbane which supply plasterboard, compounds, cornice andassociated products and systems to the Australian building industry through itsnational distribution network.Knauf technical information isregularly updated. To ensure thisdocument is current with the latestinformation, visit:knaufplasterboard.com.au orknaufmetal.com.au orplease contact Knauf’s CustomerService Centre on1300 724 505(Knauf Plasterboard) or1300 725 675(Knauf Metal)PRODUCT PROPERTIESWarrantyKnauf Plasterboard and Knauf Metalproducts are guaranteed by a 10Year Warranty.Water ResistantImpact ResistantVisit knaufplasterboard.com.au orknaufmetal.com.auSound ResistantInterior DesignVersion 7June 20182 A range of Knauf products are certified by GlobalGreenTag to GreenRate Level A, a product certificationscheme recognised by the GBCA. Level A recognitionwill achieve 100% of the Green Star points within therelevant materials categories. Any product which featuresthe tag is certified.
Contents12INTRODUCTIONIntroduction4Product range and applications5BUILDING WITH PLASTERBOARDMaterial propertiesCare and use34811INSTALLATIONLevels of finish18Fasteners20Ceilings22Walls38Wet areas46Back-blocking58FINISHING PLASTERBOARDJointing plasterboard64Cornice installation68Painting plasterboard70Glancing light723
IntroductionThe Australian Standard for installing and finishing plasterboard is AS/NZS2589-2017, Gypsum linings – Application and finishing.This Plasterboard Installation Guide includes information on non-fire rated installation of Knauf plasterboard in lowrise residential dwellings (Class 1 buildings according to the National Construction Code). It also presents Knauf’srecommendations for best practice in plasterboard installation so the desired ‘Level of Finish’ is obtained for theapplication.Unique to Knauf OPAL is the premium solution for walls and ceilings providing superior noise reduction, impactresistance along with optimal aesthetics.This guide covers the internal application of standard products such as MastaShield and SpanShield as well as detailsfor inclusion of OPAL, WaterShield for wet areas and cornice fixing for decoration. Installation details are alsoincluded for typical applications including garage ceilings and external ceilings such as alfresco areas.Knauf has a wide range of product solutions that can assist in tailoring each project to the needs of both the homeowner and trades including specialist plasterboards, compounds and cornice.The Knauf Knowhow complementary service offer provides specialist technical support advice with regards to howbest to use the complete range of Knauf products and systems in your project.4Technical Advice 1300 724 505 knaufmetal.com.au
1INTRODUCTIONProduct Range and ApplicationPRODUCT RANGE AND APPLICATIONTable 1 Primary Application of Knauf PlasterboardsDutyProductSolution ForPrimary ApplicationWallsCeilingsMastaShieldStandard wall liningSpanShieldStandard ceiling liningCurveShieldDesigned curved forms WaterShieldWet areas in bathrooms, toilets and laundries OPALSound and impact resistant and Premium Level 4 Finish* DesignpanelFor aesthetic and acoustic comfort *For more information on OPAL technology refer to the latest OPAL Installation Guide on the websiteTable 2 Knauf Plasterboard Sizes and WeightsKnauf *(kg/m²)Properties2400 2700 3000 3600 4200 4800 600010MastaShield13SpanShieldWaterShield10101200 1350 1200 13501200 L10 135013 6.48.4Available under the KnaufCarbon Neutral program7.07.5 9.4 12.3Available under the KnaufCarbon Neutral program4.9 1200 1350 8.4*Weights indicated are nominal.Special sizes available, minimum order quantity and lead times apply.Square Edge/Recessed Edge and Square Edge/Square Edge available, minimum order quantity and lead times apply.Acoustic Walls &Ceiling LiningsSurfacePatternThickness(mm)Size(mm)Edge TypeWeight*(kg/m2)Absorption**(αw/NRC)Properties4 x RecessedG2FDesignpanelQ2FM2F12.51200 x 2400 8.9up to 0.651200 x 2400 8.8up to 0.701200 x 2400 8.9up to 0.60*Weights indicated are nominal.**Acoustic absorption is dependent on cavity depth and insulation (minimum cavity of 30mm).***Alternative perforations patterns available to order. Stocked in Australia Stocked item in some locationsTechnical Advice 1300 724 505 knaufplasterboard.com.au5
Building withPlasterboard6
2.1Material Properties8Benefits of Lightweight Construction9Environmental Benefits9Dimensional Stability9Fire Resistance10Thermal Properties10Safety102.2Care and Use11Storage, Delivery and Handling12Condensation and Ventilation13Exposure to High Humidity14Exposure to Excessive Heat14Technical Advice 1300 724 505 knaufplasterboard.com.au7
BENEFITS OF LIGHTWEIGHTCONSTRUCTION9ENVIRONMENTAL BENEFITS9DIMENSIONAL STABILITY9FIRE RESISTANCE10THERMAL PROPERTIES10SAFETY108MaterialPropertiesKnauf wall and ceiling linings are available with awide range of properties for different applications fromsubstituting the look and feel of masonry to aestheticceiling linings that absorb sound.Along with providing these solutions, Knauf offers a suiteof Knowhow services to help bring your project to life frominstant online calculators and system selectors to personaltechnical advice and all backed by a 10 year Knaufproduct warranty.Technical Advice 1300 724 505 knaufmetal.com.au
MATERIAL PROPERTIESPlasterboardBenefits of LightweightConstructionLightweight construction is the efficient use ofcomponent materials, to provide an effective compositeperformance; the result is a vast range of combinationsso that the desired performance can be customised.Lightweight construction is so called because it canachieve high performance while minimising the overallweight and cost of the entire building.A typical lightweight wall construction consists oftimber or Knauf steel framing, insulation and Knaufplasterboard and or other lining board.Knauf steel studs are an efficient, non-combustible wayof providing framing for Knauf plasterboard and otherlining materials.Knauf Earthwool acoustic and thermal insulationenhances the performance of walls and ceilings.Plasterboard is made from a core of a naturallyoccurring mineral called gypsum, also known ascalcium sulphate dihydrate or CaSO4.2H2O. The core issandwiched between two layers of heavy duty recycledpaper. The face paper is suitable for painting orwallpaper. Plasterboard has square profile cut ends andlong recessed edges to enable easy jointing.Knauf manufactures plasterboard to strict internalstandards which meet or exceed the requirements ofAS/NZS 2588:1998, Gypsum Plasterboard.The Australian Standard for plasterboard installation isAS/NZS 2589:2017, Gypsum linings – Applicationand finishing.Where extreme water resistance is required, KnaufPermarock is a solid, engineered wall and ceiling liningmade from inorganic aggregated cement with glass fibremesh embedded in both the face and back. Availablefor both indoor and outdoor application, it is the idealtile substrate and provides a solid and dry foundationfor external rendered and painted façades.2.1Environmental BenefitsKnauf plasterboard is an ideal product for sustainableconstruction. As a lightweight building material, Knaufplasterboard reduces transport costs and emissionsas well as the total weight of buildings. KnaufPlasterboard is 100% recyclable, with low embodiedenergy, and made largely from a naturally occurringmineral – gypsum. The liner paper used to make Knaufplasterboard is biodegradable and made from recycledpaper such as waste newspaper and cardboard.The Knauf plasterboard manufacturing process operatesunder strict environmental guidelines: Efficient use of energy and water including heatrecovery and storm water collection Effective collection and monitoring of dust Ongoing waste and raw material usage reduction Minimisation of plant impact on surroundingsSince 2009 Knauf Australia has introduced a numberof initiatives to reduce carbon emissions which hasalso resulted in the first certified carbon neutral opt inprogram for plasterboard.Combining Knauf plasterboard with lightweight framingsuch as timber or Knauf steel provides a vast array ofsystem performances, which can be efficiently gaugedto the precise needs of any project. Knauf's lightweightsteel framing is both strong and durable, and like Knaufplasterboard has the potential to be fully recycled at endof life.For more information refer nal StabilityPlasterboard is dimensionally stable when compared toother building materials. Two measures of dimensionalstability are listed below: Thermal coefficient of linear expansion ( ) 16.7 x 10-6 / C, measured unrestrained over thetemperature range of 3 C – 32 C Hygrometric coefficient of expansion 6.5 x 10-6 / % RH, measured unrestrained over theRelative Humidity (RH) range of 10% – 90%Technical Advice 1300 724 505 knaufplasterboard.com.au9
2.1MATERIAL PROPERTIESPlasterboardFire ResistanceAll plasterboard is naturally fire resistant and isclassified as non-combustible according to the NationalConstruction Code (NCC) Volume One, Section C1.9.The core slows down the spread of fire by releasingchemically bound water when heated. This is a similarprocess to evaporation and aids cooling. Knauf steel isnon-combustible and like Knauf plasterboard may beused in Type A construction according to the NCC.Thermal PropertiesTHERMAL 'R' VALUEThe R-Value of plasterboard is a measure of its thermalinsulation ability. Higher numbers indicate a betterinsulator. The values for plasterboard are:10mm plasterboard 0.059 m2.K/W13mm plasterboard 0.076 m2.K/W16mm plasterboard 0.094 m2.K/WSteel conducts heat very well so a thermal break isneeded when steel studs are used to construct externalwalls. Refer to the NCC for further details.SPECIFIC HEAT CAPACITYSpecific heat capacity is the amount of heat energy requiredto raise the temperature of 1 kg of material by 1 C.Plasterboard is 1090 J/kg/K.Steel is 490 J/kg/K.SafetySteel and plasterboard are not classified as hazardousaccording to the criteria of Safe Work Australia. Theyare non-toxic and non-flammable.10Safety Data Sheets (SDS) are available atknaufplasterboard.com.au or by calling1300 724 505.Some plastering compounds have safe handlingrequirements. [Refer to the health and safetyinformation printed on the compound packagingfor details].Technical Advice 1300 724 505 knaufmetal.com.au
STORAGE, DELIVERY AND HANDLING12CONDENSATION AND VENTILATION13EXPOSURE TO HIGH HUMIDITY14EXPOSURE TO EXCESSIVE HEAT14Care and Use11
2.12.2CARE AND USEPlasterboardStorage, Delivery and HandlingWall and ceiling linings must be kept dry and should be stacked clear of the floor using supports not more than600mm apart as shown in Figure 1. If outdoor storage is unavoidable, linings and accessories should be fullyprotected from the weather. Plasterboard that has been exposed to direct sunlight, or has been fixed and left standingunpainted for long periods, may become discoloured. If this happens, it must be sealed with a solvent borne stainsealer undercoat as recommended by the paint manufacturer.Plasterboard finishing compound must not be left unpainted as it becomes susceptible to moisture absorption and candevelop shrinkage defects or become powdery and flake off if painting is attempted. Plasterboard ceilings should notbe left unpainted as they may absorb moisture from the atmosphere and sag.Reduce the possibility of damage to plasterboard, arrange delivery to site immediately before installation. Duringdelivery, care should be taken not to damage recessed edges.Exposure to excessive humidity during storage can result in plasterboard becoming damp and soft, and may appeardefective. In this case allow the plasterboard to dry out and handle with care during installation.To help protect plasterboard from absorbing humidity:Avoid open sources of water such as wet floorsWrap the plasterboard with plastic overnight when storing outside Provide ventilation Install soon after deliveryInstall during dry weather for best resultsStore Knauf steel products where they are not in constant contact with water or in wet environments for extendedperiods. Avoid exposure to airborne contaminants such as sea spray.For further information on storage, delivery and handling of plasterboard visit www.awci.org.au (industrypublications).FIGURE 1 Correct pallet storage12Technical Advice 1300 724 505 knaufmetal.com.au
CARE AND USEPlasterboardCondensation andVentilationPlasterboard must not be installed until the building isweatherproof, particularly in coastal areas subject tosea spray. Complete all exterior doors, walls, windowsand the roof before installing plasterboard. Preventrain from entering buildings, avoid water on floors orother sources of open water and allow wet concrete ormasonry to dry. These precautions will reduce excessivehumidity that may be absorbed by timber or unpaintedplasterboard and minimise defects caused by timbershrinkage or moist plasterboard.Condensation of water onto either the face or back ofthe plasterboard must be avoided. Insufficient protectionfrom condensation can result in joint distortion,plasterboard sagging, mould growth and fastenerpopping.Many inter-related factors must be taken into accountto control condensation. Good practice is to make useof wall and ceiling insulation, vapour barriers, andespecially ventilation. Ventilation must be considered forthe spaces in walls, under floors and in particular underroofs.2.2To minimise the effects of condensation:Use WaterShield to increase protection againstmoistureUse moisture barriers, sarking, and insulation.However, it is important that the right type isselected for the construction type and that it isinstalled correctly [Refer to the manufacturer’sspecifications]Use foil backed insulation under metal roofswhich are susceptible to forming condensationInstall eave vents, gable vents and roofventilators in the roof cavity [Refer to Figure 2]Remove humidity from bathrooms via anexhaust fan to the outsideUse a quality paint system to provide protectionagainst paint peeling and condensation soakinginto plasterboard and compoundsEnsure the building design controls condensation onthe steel components so they are not constantly wetIn hot and humid climates where the building is airconditioned below the dew point of the outside air,the wall and ceiling framing members and internallinings should be fully protected by moisturebarriers to separate them from the humid externalair. The moisture barriers should be thermallyinsulated to maintain them at a temperature abovethe dew point.FIGURE 2 Condensation and ventilationTechnical Advice 1300 724 505 knaufplasterboard.com.au13
2.12.2CARE AND USEPlasterboardExposure to High HumidityGLASS OR STAINLESS STEEL SPLASHBACKCeilings in rooms such as indoor swimming pools andcommunal showers are subject to long periods of highrelative humidity (above 90%). The use of plasterboardon these ceilings is not guaranteed by Knauf. PermaRockCement Board Indoor is recommended for these areas.AS 5601.1-2013 Gas Installations allows plasterboardto be used behind splashbacks near domestic gasburners as follows:WaterShield completely covered with a waterproofmembrane complying with AS/NZS 4858:2004 maybe used for walls in rooms subject to long periods ofhigh relative humidity. Vertical junctions and wall to floorjunctions must also be waterproof.For rooms with intermittent periods of high relativehumidity such as bathrooms, WaterShield may be used.In these rooms a source of ventilation is required toenable removal of excess moisture, such as an openwindow or exhaust fan.Exposure to Excessive HeatPlasterboard is an ideal building material for normalambient temperatures. It is not suitable for long periodsat elevated temperatures such as installed near fireplaceflues or chimneys. FireShield is no exception. It isdesigned to slow down a fire, not to resist constantelevated temperatures.Behind ceramic tiles any plasterboard may be used ifthe ceramic tiles are minimum 5mm thickIf clearance to glass or stainless steel splashback is200mm* or more then any plasterboard may beusedIf clearance to glass splashback is less than 200mm*then 10mm plasterboard may be used if the glass ismarked as 'toughened safety glass'Clearance to stainless steel splashback is lessthan 200mm* then 6mm fibre cement over 10mmplasterboard may be used if the steel is at least0.4mm thick*Clearance is measured from the edge of the nearestburner to the splashback.The effect of high temperatures on plasterboard is tochemically dehydrate the core. This process generallybegins at around 80 C but can occur at lowertemperatures under certain conditions.AS/NZS 2589:2017, Gypsum linings – Applicationand finishing , states that plasterboard must not beexposed to temperatures above 52 C for prolongedperiods.Heat generating appliances have installation instructionsfor the correct distances between plasterboard liningsand heat sources. The National Construction Code(NCC) also has requirements for installation of heatingappliances.14Technical Advice 1300 724 505 knaufmetal.com.au
Knowhow to help bringyour project to lifeChallenges are a natural part of every project and we believe they drive innovation.The Knauf Knowhow Suite is developed through dialogue and an understanding of your challenges- Delivering unrivalled value and expertise to your project management and specification process.Discover the suite of Knauf’s architectural tools and technical support services.BIM tionsOnlineCalculatorsIn this way we are able to helpand become part of your solution.For more information visit knaufplasterboard.com.au/knowhowTechnicalSupport
Installation16Technical Advice 1300 724 505 knaufmetal.com.au
3.1Levels of Finish18Australian Standard Requirements18Level 3 Finish19Level 4 Finish19Level 5 Finish193.220FastenersFixings213.322CeilingsG
This guide covers the internal application of standard products such as MastaShield and SpanShield as well as details . Some plastering compounds have safe handling requirements. [Refer to the health and safety information printed on the compound packaging for details].
Guide to the manual handling of plasterboard construction audit tool PN 11363 Version 1 Last updated September 2012 The appendices include more detailed information about manual task risk management and handling plasterboard. This higher level of
Here is a highlight of some of Knauf’s products, systems and services: Gypsum based high performance drywall building materials, system and accessories. ASTM certified products & systems – Ceiling, Partition, Wall Lining and Cinema System. Knauf Aquapanel c
4 Gyprock Ceiling Systems Installation Guide Components Plasterboard CSR GFC manufactures and supplies a diverse range of plasterboard and fibre cement sheets, acoustic panels and accessories
specifications for timber framed construction, similar installation, jointing and finishing details apply to steel framed buildings. Refer to relevant USG Boral publications for steel framed plasterboard construction details. Installation specifications outlined in this manual apply to Level 4 finish, unless noted otherwise (see Levels of Finish).
Product Catalogue 2019. Disclaimer Products manufactured and systems designed by Knauf are produced in accordance with the Building Code of Australia and relevant Australian Standards. Information in this document is to be used as a guide only and is subject to project approval as
Timber ceiling substrates are more prone to temperature or moisture induced movement and shrinkage. These issues tend to impact on the surface of the plasterboard and can result in call-backs. Metal ceiling batten systems provide a stable substrate for plasterboard ceiling linings. Regular users of metal batt
EnviroSeal 3 Bradford SoundScreen 4 2 x 10mm Soundchek plasterboard fixed to resilient mount and furring channel system 5 Steel framing 6 2 x 10mm Gyprock Soundchek plasterboard direct fixed to frame 7 Windows with 6.76mm double glazed laminated max. 20% of wall area) Bradford R2.0 Bradford EnviroSeal 10 Hebel PowerPanel Wall System .
Reading Comprehension GRADE 10. Student Name School Name. District Name. ELEMENTELEMENTARY & SECONDARYTARAARRY & SECONDAR&RY. Massachusetts Department of. This is a practice test. Your responses to practice test questions must be recorded on your Practice Test Answer Document. Mark only one answer for each multiple-choice question. If you are not sure of the answer, choose the answer you think .
