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    COMMERCIAL

    MANUALTECH

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    The information and systems in this manual are current at

    the time of printing (MARCH 2007). For the latest system

    and literature updates, refer to the technical literatureon our website: lafargeplasterboard.com.auor contact

    Lafarge Technical Services on 1300 724 505.

    WARRANTYProducts and systems are manufactured and distributed

    by Lafarge Plasterboard in accordance with the relevantstandards. Lafarge Plasterboard Pty Ltd will not be held

    responsible for any claims resulting from the installation

    of its products not in accordance with the manufacturers

    recommendations, manuals or relevant Australian Standards.

    All installations must be carried out strictly in accordance

    with Lafarge Plasterboard technical literature.

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    1 ABOUT LAFARGE PLASTERBOARD Who we are, our values & our commitments

    2 LAFARGE PRODUCT RANGE Plasterboard, Ceiling Panels, Cornice & Compounds

    3 BUILDING WITH PLASTERBOARD Plasterboard properties, performance & regulations

    2

    4

    15

    4 SYSTEMS & INSTALLATION GUIDE System descriptions, installation requirements & construction details

    33

    5 FINISHING PLASTERBOARD Levels of finish, back-blocking, jointing & painting

    229

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    internationalThe Lafarge Gypsum Division

    Lafarge Plasterboard Australia is part of LafargeGroups Gypsum Division, the worlds third largest

    plasterboard manufacturer and supplier.

    Active in 36 countries, Lafarge Gypsum conducts

    industrial activities on 83 sites worldwide and with

    7,700 employees, Lafarge Gypsum had sales of over

    1.45 billion in 2005.

    Whilst we operate independently on a national basis,

    being part of Lafarge Gypsum gives us access to new

    technologies and worldwide advances in building

    materials. With the support of our international

    network, our customers benefit from the experiencesand best practices achieved in other countries.

    freshLafarge Plasterboard in Australia

    Lafarge Plasterboard was established in 1988 as

    a joint venture between Pioneer International

    and Lafarge Gypsum. In 1999, Lafarge took full

    ownership.

    Today, we have production facilities in Melbourne(Altona) and Sydney (Matraville) with the capacity

    to supply in excess of 35 million square metres of

    plasterboard each year.

    As a relatively recent player in our regional market,

    we have attracted over 230 employees from diverse

    backgrounds with extensive experience and skills.

    Our employees bring fresh and contemporary ideas

    to the Australian Plasterboard industry, combined with

    an ongoing commitment to improving product and

    service performance.

    focusedThe Australian Plasterboard Specialist

    Lafarge Plasterboard is a plasterboard specialistfocused on providing plasterboard, compounds,

    cornices and associated products to the building

    industry.

    We offer a comprehensive range of partition, wall lining

    and ceiling solutions for both new and refurbishment

    projects in the residential and commercial building

    markets. Our range is complemented by our ability to

    customise systems to meet our customers individual

    fire, acoustic and aesthetic requirements.

    We continually strive to meet our customers

    expectations, and those of the Australian plasterboardindustry, through innovative, high-quality products and

    services. As a member of Lafarge Gypsum, we have

    access to the world class resources of its Technical

    Development Centre (TDC) in France. The TDC supports

    our aim of improving current construction methods,

    product performance and the development of

    innovative products that will shape future trends.

    An example of our commitment to innovation is

    expressed through our unique aesthetic and acoustic

    perforated plasterboard, AcoustiShield.

    We manufacture our

    plasterboard products in

    accordance with quality systems

    certified as complying with

    AS/NZS ISO 9001:2000.

    In addition, being part of

    Lafarge Gypsum means we

    must also conform to their

    stringent international

    quality standards.

    TECHNICAL ADVICE 1300 724 505 2 lafargeplasterboard.com.au

    Building relationships that last

    ABOUT

    LAFARG

    E

    PLASTE

    RBOARD

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    TECHNICAL ADVICE 1300 724 505 3 lafargeplasterboard.com.au

    reliableOur Customer Service - 1300 724 505

    Lafarge Plasterboard is committed to providingthe most reliable and responsive delivery and

    sales service to our customers.

    We are dedicated to maintaining product availability.

    Our Customer Service Centre and Sales teams are

    always on hand to assist with orders, product queries

    and delivery schedules.

    The Technical Services team works closely with

    plasterboard contractors and architects to provide

    professional advice. They also offer field assistance to

    applicators for specification and installation of Lafarge

    products and systems.

    Our customers have online access to the latest technical

    publications, product information and PlastaMasta

    Centre locations via our quick and user-friendly

    website... lafargeplasterboard.com.au

    responsibleOur Commitment to Safety & Environment

    Lafarge Plasterboards business objectives will

    never take priority over the safety of our peopleor preservation of the environment.

    Safety is recognised as an integral part of everything

    we do. Our benchmark safety performance and

    safety reporting culture demonstrate our ongoing

    commitment to providing an injury-free workplace for

    our employees.

    Lafarge Plasterboard continues to work to minimise the

    environmental impact of our operations.

    Our policy covers all aspects of environmental

    protection from extraction of raw materials to recycling.

    We are also vigilant in seeking ways to improve naturalresource efficiencies whilst reducing production of

    waste and air emissions.

    involvedOur PlastaMasta Centres

    Lafarge Plasterboards unwavering customerdedication is manifested daily through our national

    distribution network of PlastaMasta Centres.

    As distributors of our products, our PlastaMasta

    Centres consider it their responsibility to be involved in

    every phase of a sale, from product purchase to well

    beyond project completion.

    No matter what the size, scope or complexity of a

    project, our PlastaMasta Centres make it their priority to

    ensure our customers succeed and compete effectively.

    Thanks to their friendly and reliable service, ourPlastaMasta Centres consistently meet our customers

    expectations.

    A founding member of the GBMA, Lafarge Plasterboardparticipates in setting safety, health and environmental policy.

    ABOUT

    LAFARG

    E

    PLASTE

    RBOARD

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    TECHNICAL ADVICE 1300 724 505 4 lafargeplasterboard.com.au

    PLASTERBOARD

    LAFARGE

    PRODUCT

    RANGE

    MastaShieldMastaShield is a standard plasterboard for internal wall linings.

    MastaShield suits a wide range of standard applications for both residential

    and non-residential buildings.

    Light weight liningEconomical solution

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 2400, 2700, 3000, 3600, 4200, 4800, 5400, 6000

    6.5 1350 3000, 3600, 4200, 4800, 6000

    13 1200 2400, 2700, 3000, 3600, 4200, 4800 6000

    8.5 1350 3000, 3600, 4800

    WaterShieldWaterShield is a water resistant plasterboard suitable for use in internal

    wet areas and as a substrate for tiles.

    Moisture resistant solutionProtects framing members against water damage

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 2400, 2700, 3000, 3600

    8.0 1350 3600, 4800

    13 1200 2700, 3000 10.0

    SafeShieldSafeShield is a dual-purpose plasterboard for the home, designed to resist

    moisture and fire. With a high density-core SafeShield also performs well

    acoustically. SafeShield is an ideal solution in kitchens, laundries and bathrooms.

    Moisture resistant solutionEnhanced fire propertiesGood acoustic performance

    SpanShieldSpanShield is a 10mm reinforced plasterboard for internal ceilings.

    It is designed to span ceiling joists or furring channels up to 600mmwithout sagging.

    Sag resistant ceiling solutionLight weight ceilingTHICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 3000, 3600, 4200, 4800, 5400, 6000

    7.2 1350 3000, 3600, 4200, 4800, 6000

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 3000 7.9

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    TECHNICAL ADVICE 1300 724 505 5 lafargeplasterboard.com.au

    PLASTERBOARD

    LAFARGE

    PRODUCT

    RANGE

    CurveShieldCurveShield is a thin flexible plasterboard that can be used to create

    very tightly contoured constructions such as curved walls and ceilings,

    archways and stairways.

    Design solution for concave and convex surfaces

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    6.5 1200 3600 4.2

    FireShieldFireShield is a fire resistant plasterboard for internal lining applications

    where a Fire Resistance Level (FRL) is required.

    Fire resistant solutionGood acoustic performance

    SoundShieldSoundShield is a plasterboard with a high-density core providing excellent sound

    insulation for residential and commercial applications. Used in wall and ceiling

    systems, SoundShield creates superior levels of acoustic comfort.

    Superior sound resistant solutionReduces noise transfer between rooms

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 3000, 4800

    8.4 1350 3000, 4800

    13 1200 3000 12.3

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    13 1200 2400, 2700, 3000, 3600 10.5

    16 1200 2400, 2700, 3000, 3600 12.5

    MultiShieldMultiShield is a plasterboard that combines the benefits of FireShield and

    WaterShield. It is suitable for use in wet areas where a Fire Resistance Level

    is specified.

    Moisture and fire resistant solutionGood acoustic performance

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    16 1200 2700, 3000 12.5

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    TECHNICAL ADVICE 1300 724 505 7 lafargeplasterboard.com.au

    CEILING PANELS

    LAFARGE

    PRODUCT

    RANGE

    SpanGrid CleancareSpanGrid Cleancare is an innovative ceiling panel finished with a vinyllaminate coated with an antibacterial solution that resists mould growth.

    Cleancare panels are designed for applications requiring higher levels of

    hygiene control.

    Hygiene control solutionResists mould growthEasily cleaned

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10 1200 600 7.2

    SpanGridSpanGrid is a laminated plasterboard used as in-fill panels in suspended ceilings.

    SpanGrid is ideal in commercial applications such as offices, schools and

    shopping centres. SpanGrid panels are either vinyl or paper faced.

    Economical ceiling solutionEasy to installEasy to clean

    THICKNESS (mm) WIDTH (mm) LENGTH (mm) WEIGHT kg/m2

    10

    1200 600

    7.2

    13 1200 600 8.5

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    TECHNICAL ADVICE 1300 724 505 8 lafargeplasterboard.com.au

    CORNICE

    ClassicLookClassicLook is a paper-faced cornice used in the junction between walls

    and ceilings to complete the decoration of the building.

    Simple curved profile

    Clean finish

    Suits all decors

    PROFILE (mm) LENGTH (mm)

    55, 75, 90

    3000 - 5400

    StepLookStepLook is a paper-faced cornice used in the junction between walls

    and ceilings to complete the decoration of the building.

    Contemporary 3 and 4 step profile

    Adds depth, edge and dimension

    WaveLookWaveLook is a paper-faced cornice used in the junction between walls

    and ceilings to complete the decoration of the building.

    Elegant soft curved profile

    Adds a smooth and relaxing style PROFILE (mm) LENGTH (mm)

    75

    4200

    PROFILE (mm) LENGTH (mm)

    75

    StepLook34200

    100 StepLook4

    PacificLookPacificLook is a paper-faced cornice used in the junction between walls

    and ceilings to complete the decoration of the building.

    Bold curves and smooth profile

    Can be retrofitted over existing 55mm cornice

    PROFILE (mm) LENGTH (mm)

    90 4200

    SkyLookSkyLook is a paper-faced cornice used in the junction between walls

    and ceilings to complete the decoration of the building.

    Sharp lines and clean profile

    Can be retrofitted over existing 55mm cornice

    PROFILE (mm) LENGTH (mm)

    90 4200

    LAFARGE

    PRODUCT

    RANGE

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    TECHNICAL ADVICE 1300 724 505 9 lafargeplasterboard.com.au

    COMPOUNDS

    MastaCoveMastaCove45 is a plaster-based cornice cement. With a setting

    time of 45 minutes it is ideal for all cornicing applications.

    Mixes easily to a creamy gaugeGoes off evenlyExcellent workback

    BAG (kg)

    20

    CORNICE CEMENTS

    MastaCoveMastaCove75 is a plaster-based cornice cement. With a setting time

    of 75 minutes, it is suitable for large cornicing jobs.

    Mixes easily to a creamy gaugeStabilised setExtended working time

    BAG (kg)

    20

    MastaSmoothMastaSmooth is a super-fine white plaster-based cornice cement.

    It is perfect for installing both cornices and decorative features.

    Quick initial grabSuperior bond strengthSets to a brilliant white finish

    BAG (kg)

    20

    LAFARGE

    PRODUCT

    RANGE

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    TECHNICAL ADVICE 1300 724 505 10 lafargeplasterboard.com.au

    COMPOUNDS

    MastaBaseMastaBase is a plaster-based cement for bedding tape and second

    coating all plasterboard joints. It has a setting time of 60 minutes.

    High joint strengthEasy to scrape backQuick drying

    BAG (kg)

    10, 20

    BEDDING CEMENTS

    MastaLongsetMastaLongset is a plaster-based cement for bedding tape and second coating all

    plasterboard joints. It has an extended setting time of 80 minutes, making it ideal

    for mechanical tools.

    Free flowingSmooth edgesEasy to retrowel

    BAG (kg)

    20

    MastaFinishMastaFinish is a premium jointing compound designed for the finishing

    coat over plasterboard joints. MastaFinish is pre-mixed and ready to use.

    Superior finishEasy to trowelEasy to sand

    BUCKET (kg)

    20

    FINISHING COMPOUNDS

    20kg

    LAFARGE

    PRODUCT

    RANGE

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    TECHNICAL ADVICE 1300 724 505 11 lafargeplasterboard.com.au

    COMPOUNDS

    MastaRapidMastaRapid is a fast-drying pre-mixed all-purpose jointing compound

    suitable for bedding tape, second and final coating plasterboard joints.

    Great coverageQuick dryingMinimal shrinkage

    BOX (L)

    14.7

    JOINTING COMPOUNDS

    MastaCoatMastaCoat3 is an all-purpose jointing compound suitable for bedding tape,

    second and final coating plasterboard joints. It is ideal in smaller jobs and renovations.

    Pre-mixed for easy useEasy to clean offMinimal wastage

    BUCKET (kg)

    6

    MastaLiteMastaLite is a pre-mixed all-purpose jointing compound suitable

    for bedding tape, second and final coating plasterboard joints.

    Great bodyFree flowingEasy to sand

    BOX (kg) BUCKET (kg)

    14.5 18

    18kg

    6kg

    LAFARGE

    PRODUCT

    RANGE

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    TECHNICAL ADVICE 1300 724 505 12 lafargeplasterboard.com.au

    COMPOUNDS

    MastaBlockMastaBlock is a pink plaster-based setting cement designed specifically for

    back-blocking ceiling joints in accordance with the Australian Standard 2589.1.

    Strengthens jointsMinimises joint crackingLong setting time

    BAG (kg)

    20

    SPECIALTY COMPOUNDS

    MastaFixMastaFix20 is a versatile 3-in-1 cement with a setting time of 20 minutes.

    Ideal for patching and fixing cornices, MastaFix20 also performs well as abedding cement.

    For patching, cornicing and jointingSets quicklyEasy to work with

    BAG (kg)

    10

    MastaBondMastaBond is a yellow bonding cement for adhering plasterboard

    to masonry surfaces.

    Excellent grabEasy to mixEasy to apply

    BAG (kg)

    20

    ADHESIVES

    MastaGripMastaGrip is an acrylic stud adhesive for adhering plasterboard to timber and

    metal frames in conjunction with screws or nails.

    Sticks to treated timbersComplies with Australian Standard 2753-1985Fast tackBUCKET (kg)

    1.25, 5.2

    5.2kgSTUD ADHESIVE

    STICKS TO TREATED TIMBERS

    COMPLIES WITH AUSTRALIANSTANDARD AS 2753-1985

    FAST TACK

    1.25kg

    LAFARGE

    PRODUCT

    RANGE

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    TECHNICAL ADVICE 1300 724 505 13 lafargeplasterboard.com.au

    ACCESSORIES

    MastaMate Paper TapeMastaMate is a spark-perforated paper tape for bedding into the first coat

    of plasterboard joints. Centre-creased for easy handling, MastaMate is the

    quality choice and will result in the strongest plasterboard joint when used withMastaBase or MastaLongset.

    Spark-perforatedCentre-creased for easy application

    ROLL (m)

    75

    ACCESSORIES

    MastaMate Screws

    MastaMate screws are used for fixing plasterboard to timber or metal substrates.They are yellow zinc plated for corrosion resistance, and are available both loose

    in boxes and collated.

    Corrosion resistantAvailable loose or collated

    QUANTITY PER BOX TYPE GAUGE LENGTHS (mm)

    1000Loose: S-Type: Needle Point and Drill Point

    6, 8 25, 30, 40, 45, 50, 60

    Head: Bugle, Button, Embedding

    1000 Collated: Fine, Coarse, Self Drilling 6 25, 32, 41

    LAFARGE

    PRODUCT

    RANGE

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    3 BUILDING WITH PLASTERBOARD

    3.1 PLASTERBOARD PROPERTIES Environmental Benefits 16

    Dimensional Stability 17 Fire Resistance 17

    Thermal Properties 17

    Safety 17

    3.2 CARE & USE OF PLASTERBOARD Storage, Delivery & Handling 18 Condensation & Ventilation 18

    External Applications Balconies & Breezeways 19

    Exposure to High Humidity 20

    Exposure to Excessive Heat 20

    3.3 BUILDING REQUIREMENTS & SOLUTIONS Using Products in Systems to Meet Building Requirements 21 Structure 22

    Fire Resistance 23

    Sound Insulation Performance 25

    Wet Areas 28

    Specific Requirements 29

    Sound Absorption, Abuse Resistance, X-Ray Resistance

    15

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    TECHNICAL ADVICE 1300 724 505 16 lafargeplasterboard.com.au

    BUIL

    DING

    WIT

    HPLASTERBOARD

    Plasterboard is the most commonly used building material worldwide

    for internal wall and ceiling linings. It is made from a core 1 of a

    naturally occurring mineral called gypsum, also known as calcium

    sulphate dihydrate or CaSO4.2H2O. The core is sandwiched between

    two layers of heavy duty recycled paper 2 . The face paper is suitable

    for painting or wallpaper. Plasterboard has square profile cut ends 3and long recessed edges 4 to enable easy jointing.

    Plasterboard systems provide a wide variety of economical

    construction solutions that are recognised for their light weight and

    high performance.

    Lafarge manufactures plasterboard to high internal standards

    which meet or exceed the requirements of AS/NZS 2588, Gypsum

    Plasterboard.

    Plasterboard must be installed and finished according to the

    requirements of AS/NZS 2589.1, Gypsum linings in residential and

    light commercial construction - Application and finishing.

    3

    1 2

    4

    QuarryNatural Gypsum

    Board Production

    PlastaMasta

    Water recycling

    Distribution network

    Paper mill

    Protection ofForest Resources

    100% recycled paperis used for makingplasterboard liner

    Plasterboard liner

    Collecting wastepaper from

    urban areas

    Transport

    Transport

    Transport

    Transport

    PLASTERBOARD PROPERTIES

    ENVIRONMENTAL BENEFITSPlasterboard is 100% recyclable. The core is made from gypsum, a naturally occurring mineral. Lafarge

    Plasterboard Australia sources its gypsum from large natural reserves within Australia. The liner paper used

    to make plasterboard is biodegradable and made from 100% recycled paper such as waste newspaper

    and cardboard.

    The plasterboard manufacturing process operates under strict environmental guidelines. These encompass:

    Efficient use of energy and water Effective collection and monitoring of dust

    Ongoing waste reduction

    Minimisation of plant impact on surroundings.

    3.1

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    TECHNICAL ADVICE 1300 724 505 17 lafargeplasterboard.com.au 3.1

    PLASTERBOARD PROPERTIES

    DIMENSIONAL STABILITYPlasterboard is dimensionally stable when compared to other building materials.

    Two measures of dimensional stability are listed below:

    1 Thermal coefficient of linear expansion ( ) = 16.7 (x 10-6/ C),measured unrestrained over the temperature range 3C 32C

    2 Hygrometric coefficient of expansion = 6.5 (x 10-6/ %RH),

    measured unrestrained over the Relative Humidity (RH) range of 10% - 90%.

    FIRE RESISTANCEPlasterboard is naturally fire resistant and is classified as non-combustible according to the Building Code of

    Australia (BCA) Section C1.12. The core slows down the spread of fire by releasing chemically bound water

    when heated. This is a similar process to evaporation and aids cooling.

    FIRE HAZARD PROPERTIES

    Fire Hazard Indices have been superseded in the BCA by Fire Hazard Properties. Wall and ceiling materials arerequired to be tested and classified with a Group number from 1 to 4, with Group 1 being the least hazardous.

    Fire hazard properties relate to the combustibility of plasterboard, not its performance in a fire test.

    The following products are classified as Group 1:

    MastaShield,SpanShield,FireShield,WaterShield,MultiShield,SafeShield, SoundShield,

    AcoustiShield,CurveShield,SpanGridCeiling Panel - Paper Faced.

    The following product is classified as Group 2: SpanGridCeiling Panel - Vinyl Faced.

    THERMAL PROPERTIES

    THERMAL R VALUE

    The R-value of plasterboard is a measure of its thermal insulation ability. Higher numbers indicate a better insulator.

    The values for plasterboard are:

    10mm plasterboard = 0.059 K m2/W

    13mm plasterboard = 0.081 K m2/W

    16mm plasterboard = 0.101 K m2/W

    SPECIFIC HEAT CAPACITY

    The specific heat capacity of plasterboard is the amount of heat energy required to raise the temperature of 1kg of

    plasterboard by 1C. The value for plasterboard is 1090 J/(kg K).

    SAFETYStandard plasterboard is not classified as hazardous according to the criteria of National Occupational Health

    and Safety Commission (NOHSC). It is non-toxic and non-flammable.

    Material Safety Data Sheets (MSDS) are available on the Lafarge website or by calling the Lafargetechnical advice line.

    Some plastering compounds have safe handling requirements.[REFER TO THE HEALTH & SAFETY INFORMATION PRINTED ON THE COMPOUND PACKAGING FOR DETAILS].

    BUIL

    DING

    WIT

    HPLASTERBOARD

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    TECHNICAL ADVICE 1300 724 505 18 lafargeplasterboard.com.au

    SYSTEMS

    3.2

    BUIL

    DING

    WIT

    HPLASTERBOARD

    STORAGE, DELIVERY & HANDLINGPlasterboard must be kept dry and should be stacked clear of the floor using supports not more than

    600mm apart as shown in Figure 1.

    If outdoor storage is unavoidable, plasterboard and accessories should be fully protected from the weather.

    Plasterboard that has been exposed to direct sunlight, or has been fixed and left standing unpainted for longperiods, may become discoloured. If this happens, it must be sealed with a stain sealer undercoat as recommendedby the paint manufacturer.

    To reduce the possibility of damage, delivery to site should occur immediately before installation.

    Care should also 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 the plasterboard should be allowed to dry out, or handle with care during installation.

    To help protect plasterboard from absorbing humidity:

    Avoid open sources of water such as wet floors

    Wrap the plasterboard with plastic overnight

    Provide ventilation

    Install soon after delivery

    Install during dry weather for best results.

    CONDENSATION & VENTILATIONCondensation of water onto either the face or back of the plasterboard must be avoided. Insufficient protection from

    condensation can result in joint distortion, plasterboard sagging, mould growth and fastener popping.

    Many inter-related factors must be taken into account to control condensation. Good practice is to make use of wall

    and ceiling insulation, vapour barriers, and especially ventilation. Ventilation must be considered for the spaces in walls,

    under floors and in particular under roofs.

    Plasterboard can also be affected by high humidity conditions after installation but before painting. Rain entering

    unsealed buildings, water on floors or other sources of open water may cause excessive humidity. This humidity may

    be absorbed by unpainted plasterboard and appear as sagging ceilings. Therefore, plasterboard must not be installed

    until the building is weatherproof.

    FIGURE 2

    Condensation and ventilation

    FIGURE 1

    Storage of plasterboard

    600mm max

    CARE & USE OF PLASTERBOARD

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    3.2

    TECHNICAL ADVICE 1300 724 505 19 lafargeplasterboard.com.au

    SYSTEMSCARE & USE OF PLASTERBOARD

    BUIL

    DING

    WIT

    HPLASTERBOARD

    To minimise the effects of condensation:

    UseWaterShieldor MultiShieldto increase protection against moisture.

    Use moisture barriersor sarking. However, it is important that the right type is selected for the

    construction type and that it is installed correctly. [REFER TO THE MANUFACTURERS SPECIFICATIONS]

    Use foil backed insulation under metal roofsas they are susceptible to forming condensation.

    Install eave and gable vents or roof ventilators in the roof cavity.[AS SHOWN IN FIGURE 2]

    Remove humidity from bathroomsvia an exhaust fan to the outside.

    In hot and humid climateswhere the building is air-conditioned below the dew point of the outside air,

    the wall and ceiling framing members and internal linings should be fully protected by moisture barriers to

    separate them from the humid external air. The moisture barriers should be thermally insulated to maintain

    them at a temperature above the dew point.

    Use a quality paint systemto provide protection against paint peeling and condensation soaking into

    plasterboard and compounds.

    EXTERNAL APPLICATIONS - BALCONIES & BREEZEWAYSMINIMUM CONDITIONS TO USE PLASTERBOARD IN CEILINGS OF BALCONIES AND BREEZEWAYS

    The plasterboard and compounds are not subjected to any direct water, long periods of high humidityor damp conditions.

    The plasterboard substrate is designed for the appropriate wind loading conditions.

    The roof has cross ventilation above the plasterboard ceiling. [REFER TO CONDENSATION AND VENTILATION]

    Sarking is used to improve temperature control, reduce wind pressure and control condensation.

    INSTALLATION REQUIREMENTS FOR EXTERIOR APPLICATIONS

    Use SpanShieldor 13mm MastaShieldand for longer term durability, use eitherWaterShieldor MultiShield.

    Fix at maximum 450mm framing centres.

    Provide framing for perimeter fixing by installing additional trimmers between trusses or joists.

    Install control joints in external ceilings at 6m maximum intervals.

    Fix the perimeter of the plasterboard using screws at 300mm maximum spacing.

    Fix the ceiling sheets using the Screw Only Method. Use screws not nails in the installation.[REFER TO SECTION 4.4 CEILING SYSTEMS FOR DETAILS]

    Back-block all ceiling joints.

    Set joints using two coats of MastaBaseor MastaLongsetand a Lafarge finish coat.

    Roll or brush on a high quality sealer undercoat specifically designed for external use.

    Use a premium paint system specified for external use.

    External ceilings are subjected to harsher conditions

    than internal ceilings, therefore they must be protected

    from the weather as specified in this section. This extra

    protection is designed to control the major causes of

    external ceiling faults which are:

    Water condensing on top of the plasterboard

    Water condensing on framing or roofing and dripping down

    onto the plasterboard

    Water penetrating the paint system.Plasterboard must not be installed in eaves.

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    EXPOSURE TO HIGH HUMIDITYRooms such as indoor swimming pools and communal showers are subject to long periods of high relative humidity

    (above 90%). The use of plasterboard in such areas is not recommended or guaranteed by Lafarge Plasterboard.

    For rooms with intermittent periods of high relative humidity, WaterShield may be used. In these rooms a source of

    ventilation is required to enable removal of excess moisture, such as an open window or exhaust fan.

    EXPOSURE TO EXCESSIVE HEATPlasterboard is an ideal building material for normal ambient temperatures. It is not suited to long periods at elevated

    temperature such as near fireplace flues or chimneys. FireShield is no exception: it is designed to slow down a fire, not to

    resist constant elevated temperatures.

    The effect of high temperature on plasterboard is to chemically dehydrate the core. This process generally begins

    at around 80C but can occur at lower temperatures under certain conditions. AS/NZS 2589.1, Gypsum linings

    in residential and light commercial construction Application and finishing, states that plasterboard must not be

    exposed to temperatures above 52C for prolonged periods.

    Heat generating appliances have installation instructions for the correct distances between plasterboardlinings and heat sources.

    CARE & USE OF PLASTERBOARD

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    SYSTEMSBUILDING REQUIREMENTS AND SOLUTIONSBUILDING REQUIREMENTS & SOLUTIONS

    Rw= 35 Rw= 47

    USING PRODUCTS IN SYSTEMS TO MEET BUILDING REQUIREMENTS

    Lafarge Plasterboard offers systems for a large variety of building requirements:

    Fire protection

    Sound insulation

    Noise absorption

    Wet areasAbuse resistance

    X-Ray shielding

    Aesthetics.

    These systems are composed of plasterboard and jointing compounds, along with framing, and other specified

    materials such as adhesives, sealants, screws and insulation. While the products alone do not provide performance,

    using them in the complete assembled system will.

    FIGURE 3

    Two systems with different configurations but using

    the same products

    Both systems in Figure 3 use exactly the same products,

    but have a significant difference in performance. The

    system on the left has an Rwof 35, while the system on

    the right has an Rwof 47. A huge difference in acoustic

    performance exists between these two wall systems simply

    due to the way the products were put together.

    System performance relies on following the correct installation details such as stud spacing and fixing centres, as well

    as using the nominated components such as plasterboard, compounds, studs and insulation. Even small details like

    sealing gaps can have a large effect. Variations in construction or materials may reduce a systems fire and acousticrating, structural capacity or other aspects of performance.

    Steel Components

    Unless otherwise stated, systems in this manual were designed using steel components manufacturedby Rondo Building Services Pty. Ltd. Alternative components may only be used:

    In accordance with the respective manufacturers literature, or

    If their performance is equivalent or better and they comply with the relevant standard.

    Insulation

    Unless otherwise stated, systems in this manual were designed using Insulco glasswool and polyesterproducts manufactured by Fletcher Insulation. Alternative components may only be used:

    In accordance with the respective manufacturers literature, or

    If their performance is equivalent or better and they comply with the relevant standard.

    Insulation used should not be thicker than recommended for the cavity size. For example, when usinginsulation in a 51mm stud wall, use 50mm insulation, not 65mm. Tightly compressing insulation into the

    cavity may reduce acoustic performance.

    Acousti-Therm, Polycoustic, Sisalationand ISBare trademarks of Fletcher Insulation.

    Systems in this manual that include fibre cement were tested and evaluated using James Hardie fibrecement products.

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    STRUCTURESTEEL FRAME DESIGN

    AS 1170, Structural design actions General principles

    defines the loads that steel framed walls are subjected to.

    Steel framed wall and ceiling systems must be designed

    according to the relevant standard:

    AS 4100, Steel Structures

    AS/NZS 4600, Cold Formed Steel Structures

    AS 3623, Domestic Metal Framing

    AS/NZS 2785, Suspended Ceilings.

    INTERNAL WALLS AND CEILINGS

    All internal wall systems and wall height tables published in this

    manual comply with the relevant section of BCA Specification C1.8.

    Height tables for non-fire rated walls have been calculated by Rondo Building Services.

    Height tables for fire rated systems have been calculated from test data and fire engineering principles by BRANZ Ltd.

    As a minimum, all internal wall systems published in this manual comply with the deflection under a Uniformly

    Distributed Load (UDL) requirements from BCA Specification C1.8. That is, the allowable deflection under a static

    pressure of 0.25kPa must be less than either:

    Wall height 240, or

    30mm.

    Some applications have additional requirements such as the walls of shafts and fire isolated exits. Unusually strong

    wind loading conditions such as those experienced in tall buildings may require internal walls and ceilings to be

    designed to higher pressures than the standard 0.25kPa. [REFER TO BCA]

    Ensure fasteners used to fix top and bottom track are appropriate for the Uniform Distributed Load(UDL) on walls.

    At 600mm fastener centres and a UDL of 0.25kPa, the fasteners must withstand a shear load of 0.75kN.

    At 600mm fastener centres and a UDL of 0.35kPa, the fasteners must withstand a shear load of 1.1kN.

    EXTERNAL WALLS AND CEILINGS

    Frame design of external wall systems must consider:

    Local environmental loading conditions

    [REFER TO AS 1170, STRUCTURAL DESIGN ACTIONS - GENERAL PRINCIPLES]

    Applied vertical load on the studs.

    CONTROL JOINTS

    Control joints allow for any building movement resulting from influences such as moisture migration, loading,

    structural movement and foundation settlement. Cracks in plasterboard and plasterboard joints should be eliminated

    by using control joints and the correct installation techniques.

    Control joints must be installed in plasterboard walls and ceilings at:

    Maximum 12 metre intervals

    Control joints in the structure

    Any change in the substrate material.

    Distance between control joints may need to be reduced to less than 12 metres due to conditions such as large

    temperature or humidity variations.

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    ireShield and MultiShield to Resist Fire

    Lafarge Plasterboard recommends the installation of FireShield

    or MultiShieldwall and ceiling systems to control the spread of

    fire. These specially formulated products contain additives thatimprove the natural fire resisting properties of plasterboard.

    ACCEPTABLE VARIATIONS TO FIRE RATED SYSTEMS

    Fire rated systems must be built according to the installation instructions in Chapter 4. However, there are some

    variations allowed that will not degrade the performance of the system:

    Increasing cavity width

    Increasing stud size or metal thickness

    Adding noggings to support fixtures or services

    Decreasing stud spacingDecreasing fastener spacing

    Substituting 13mm FireShieldwith 13mm Lafarge GIB Toughline

    Adding non-combustible layers to a system up to a weight of 20kg/m2and no thicker than 25mm. This includesfibre cement board up to 9mm thick and plasterboard up to 25mm thick. For load bearing walls, the load per stud

    must include the extra lining.

    MODIFICATIONS TO FIRE RATED SYSTEMS

    Fire rated systems are often modified by the installation of:

    Fire rated inspection hatches

    Fire rated power pointsFire rated light fittings

    Fire rated doors

    It is the responsibility of the manufacturer of these components to ensure that the fire and acoustic properties of the

    plasterboard system are maintained.

    [SOME MODIFICATIONS ARE DETAILED IN CHAPTER 4].Any modification not covered in this manual must be according to the

    relevant manufacturers instructions.

    SMOKE WALLS

    The purpose of a smoke wall is to prevent smoke passing from one side of a wall to the other. The perimeter and all

    penetrations must be sealed with fire mastic. A smoke wall must be built from non-combustible materials such as

    plasterboard, compounds, glasswool insulation and fire mastic.

    Doors and windows used in smoke walls must comply with requirements in the BCA Specification C2.5. Ducts

    through the smoke wall must use a smoke damper, unless the duct is part of the smoke handling system and is

    required to function during a fire.

    Class 9a health-care buildings

    Smoke walls in Class 9a buildings must extend up to:

    A non-combustible roof or

    A ceiling having a RISF of 60 minutes such as any ceiling system in Section 4.4 with at least two layers of FireShield.

    Class 9c aged care buildings

    Plasterboard used for smoke walls in Class 9c buildings must have a thickness of at least 13mm. Smoke walls in

    Class 9c buildings must extend up to:

    A non-combustible roof or

    A jointed plasterboard ceiling with a minimum thickness of 13mm.

    Fire dampers

    Electrical cablesMetal or plastic pipes

    Other fire rated penetrations.

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    SOUND INSULATION PERFORMANCEThere are two types of acoustic functions: sound insulation and noise absorption.

    This section explains common sound insulation terms. [NOISE ABSORPTION IS ADDRESSED LATER IN THIS SECTION.]

    ACOUSTIC TERMS AND DEFINITIONS

    Rw Weighted Sound Reduction Index

    Rwdescribes the airborne sound insulating power of a building element. It is a laboratory measured value. It can apply

    to walls, ceiling/floors, ceiling/roofs, doors, or windows. The higher the number, the greater the sound insulating

    power of the building element.

    For example, an increase in the Rw of a wall by 10 points

    will reduce the perceived loudness of sound passing

    through the wall by about half. Table 1 shows how the

    sound insulating effectiveness of walls depends on their

    Rw or Rw + Ctr values.

    Rw + Ctr Rw plus Spectrum Adaptation TermRw + Ctr is equal to Rw with the addition of a low

    frequency sound correction, Ctr. The use of Rw + Ctr

    has become more relevant due to the increase in low

    frequency sound sources such as surround sound

    systems, traffic and aircraft noise, drums and bass

    guitars.

    Two walls can have the same Rw rating, but have

    different resistance to low frequency sound, thus a

    different Rw + Ctr.

    DnTw and DnTw + Ctr Measured on-site

    These values are the equivalent of Rw and Rw + Ctr, but measured on-site. Rw is the value measured in an acoustic

    laboratory, while DnTw is measured on-site.

    An on-site measured value of DnTw + Ctr is permitted to be 5 points lower than the Rw + Ctr value. Where the BCA

    may call for an Rw + Ctr >_ 50, the same requirement may be satisfied by measuring DnTw + Ctr >_45 on-site.

    Ln,w + Ci Impact Sound Insulation Rating

    Ln,w + Ci describes how easily impact sound travels through a wall or floor. Impact sound is generated by sources

    such as dryers, washing machines and heeled shoes on a wooden floor.

    Unlike Rw values, better performing walls or floors have lower values. Therefore when specified, Ln,w + Ci values are

    maximums while Rw values are minimums. For example, the BCA requires some floors to have Ln,w + Ci

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    TABLE 2BCA Acoustic Requirements for Sole Occupancy Units (SOU)

    IMPACTSOUND

    INSULATION

    AIRBORNESOUND

    INSULATION

    ACOUSTIC REQUIREMENTS

    IMPORTANT

    Table 2 lists some of the more common requirements but is not intended as a substitute for the BCA,and does not include Building Classes other than 1, 2, 3 and 9c.[REFER TO THE BCA FOR THE FULL DETAILS OF ACOUSTIC REQUIREMENTS]

    Discontinuous

    Discontinuous

    Lnw + Ci _ 50

    Walls separating SOUs in all other cases Rw >_45

    Walls or ceilings separating a soil or waste pipe from a habitable room Rw >_45

    Walls or ceilings separating a soil or waste pipe from a kitchen, bathroom

    or other non-habitable roomRw >_ 30

    Floors between SOUs Rw >_45

    BUILDING CLASS 1 VIC, TAS, NSW, WA, ACT & SA

    Walls separating a bathroom, toilet, laundry or kitchen and a habitable room

    (other than a kitchen) in adjoining SOUsRw+ Ctr >_ 50

    Walls separating SOUs in all other cases Rw+ Ctr >_ 50

    Walls or ceilings separating a duct, soil, waste or water supply pipe or storm

    water pipe from a habitable roomRw+ Ctr >_ 40

    Walls or ceilings separating a duct, soil, waste or water supply pipe or storm

    water pipe from a kitchen, bathroom or other non-habitable roomRw+ Ctr >_ 25

    BUILDING CLASS 2 & 3 VIC, TAS, NSW, WA, ACT & SA

    Walls separating habitable rooms in adjoining SOUs Rw+ Ctr >_ 50

    Walls separating kitchens, toilets, bathrooms and laundries in adjoining SOUs Rw+ Ctr >_ 50

    Walls between a bathroom, toilet, laundry or kitchen and a habitable room

    (other than a kitchen) in adjoining SOUsRw+ Ctr >_ 50

    Walls between a SOU and a public corridor, public lobby, stairway or the

    like or parts of a different classificationRw >_ 50

    Walls between a SOU and a plant room or lift shaft Rw >_ 50

    Walls or ceilings separating a duct, soil, waste or water supply pipe or storm

    water pipe from a habitable roomRw+ Ctr >_ 40

    Walls or ceilings separating a duct, soil, waste or water supply pipe or storm

    water pipe from a kitchen or other non-habitable roomRw+ Ctr >_ 40

    Floors between SOUs and between a SOU and a plant room, lift shaft, stairway,

    public corridor, public lobby or the like, or parts of a different classificationRw+ Ctr >_ 50

    BUILDING CLASS 9C ALL AUSTRALIA

    Walls separating SOUs from a kitchen or laundry Rw >_ 45

    Walls and floors separating SOUs, and walls separating SOUs from a bathroom,

    toilet, plant room or utilities roomRw >_ 45

    Discontinuous

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    Performance requirements of the BCA relating to sound transmission and insulation can be satisfied by one of the

    following three options:

    1 Deemed-to-Satisfy ConstructionConstruct a wall or ceiling system that complies with the deemed-to-satisfy provisions of the BCA Specification

    F5.2 2. This section of the BCA details generic systems that satisfy the acoustic BCA requirements. However in

    general, more efficient solutions can be found in this manual.

    2 Laboratory test or acoustic engineeringConstruct a wall or ceiling system with an acoustic rating from this manual. The systems in this manual were eitherlaboratory tested according to the relevant acoustic testing standard or were given an Acoustic Opinion made by

    Day Design Pty Ltd, consulting acoustical engineers of Sydney, NSW.

    3 On-site testingConduct on-site acoustic testing on a wall or ceiling system. This is a verification method accepted by the BCA

    to confirm the performance requirements are met. Also the effectiveness of the complete installed system can be

    verified by on-site acoustic testing.

    HIGHER ACOUSTIC REQUIREMENTS

    Where performance is critical or noise is higher than normal, accredited acoustic engineers should be consulted. Their

    role is to ensure that design and construction will meet any specific requirements.

    Acoustic predictionsfor systems not published in Lafarge literature can often be generated by acoustic

    modelling software. Contact Technical Services for an acoustic prediction based on the Lafarge product range.

    The AAAC(Association of Australian Acoustical Consultants) offer detailed guidance on acceptable

    acoustic performance. They have published their own star rating system. Ratings range from 2 to 6 starsand are based on field testing by an AAAC consultant to verify that they have been achieved. More

    information about AAAC Star Ratings for Apartments and Townhouses is available at www.aaac.org.au

    ACOUSTIC TESTING AND ACTUAL PERFORMANCE

    Attention to detail during construction is important for achieving good acoustics, as performance is governed by the

    weakest link in the system. Performance of installed acoustic systems may fall short of laboratory measured results.

    Acoustic measurements in a typical laboratory test represent the maximum performance that can be achieved;

    meticulous care goes into laboratory installation of the system.

    Actual site conditions are usually less than ideal and sound flanking paths normally exist around the perimeter of thesystem. Flanking paths may be minimised by sealing the perimeter with acoustic sealant, including behind the cornice,

    and by installing services using acoustically rated details.

    DESIGNING FOR ACOUSTIC PERFORMANCE

    Acoustic performance is easier and cheaper to achieve if it is considered before construction begins. Good acoustic

    design includes:

    Selection of appropriate systems to limit sound transmission and/or sound reverberation

    Thoughtful design of the building layout

    Consideration of flanking paths.

    Flanking paths are ways sound can travel around barriers, such as through windows, ceiling cavities, under doors andalong services.

    Acoustic testing laboratories are designed to ensure that flanking paths do not occur. Tested partitionsystems are constructed with extreme care to achieve optimum performance. For these reasons, on-siteperformance may be different to laboratory performance.

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    The sound insulating capability of a basic wall or ceiling system can be upgraded by using a combination of:

    Lafarge SoundShield

    Multiple plasterboard layers

    Insulation

    Resilient mounts

    Double stud walls

    Staggered stud wallsRondo Quiet Stud

    Sealant in all gaps.

    Lafarge Plasterboard recommendsthe installation of

    SoundShieldwall and ceiling systems to minimise noise

    from aircraft, traffic and neighbours.

    SoundShield is a plasterboard with enhanced acoustic qualities. SoundShields

    super high-density* core helps to resist the intrusion of noise into rooms.

    SoundShield for Superior Noise Control

    *The denser the plasterboard, the better it will resist sound transfer.

    WET AREAS

    The BCA requires wet area construction to protect the occupants from dangerous or unhealthy conditions,

    and to protect the building from damage. Acceptable construction for wet areas is detailed in the BCA and

    Australian Standard AS 3740, Waterproofing of Wet Areas within Residential Buildings. The installation

    instructions in Section 4.1.3 of this manual comply with AS 3740.

    WaterShieldand MultiShield are both water resistant plasterboards, and both are suitable for use as water

    resistant substrates in the waterproofing of wet areas according to the BCA and AS 3740. MultiShield is a water

    resistant plasterboard that is also fire resistant and can be substituted for 16mm FireShieldin most systems.

    WaterShield and MultiShield are manufactured to high internal standards that meet or exceed the requirements of

    ASTM C630, Water Resistant Gypsum Backing Boardand AS 2588, Gypsum Plasterboard.

    WaterShield and MultiShield for Wet Areas

    Lafarge Plasterboard recommends the installation of WaterShield

    to resist moisture in wet areas like showers, bathrooms and

    laundries. For areas that require a fire rating as well as waterresistance Lafarge Plasterboard recommends a MultiShield system.

    WaterShield and MultiShield are ideal substrates for tiles as they are

    dimensionally stable.

    WaterShield and MultiShield are water resistant, however they are not waterproof:

    Direct contact with water over time must be avoided.

    Precautions against condensation listed in Section 3.2 Condensation and Ventilation must be followed.

    For external use of plasterboard [REFER TO SECTION 3.2 EXTERIOR APPLICATION].If plasterboard has been water damaged, replace it.

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    Together with the protective mat glued to the back of the board, the perforations in AcoustiShield

    are designed to absorb sound. The higher the rate of perforation, the higher the sound absorptionperformance and NRC value.

    [REFER TO SECTION 4.7.2 FOR ACOUSTISHIELD SYSTEMS AND INSTALLATION REQUIREMENTS]

    SPECIFIC REQUIREMENTS

    SOUND ABSORPTION

    Hard surfaces reflect sound and can create noisy rooms or halls. Soft furnishings or noise absorbing systems

    with an NRC rating control noise by reducing sound reflections.

    The Noise Reduction Coefficient (NRC) is the term used to rate a system for its ability to absorb sound.

    The larger the NRC value, the better the sound absorption of the system.

    NOISE REDUCTIONGUIDELINES

    NOISE REDUCTION COEFFICIENT ROOM OR AREA

    0.65 Circulation, foyers, waiting, day rooms and restaurants, shops, cafes

    0.65 - 0.85 Laboratories, theatres, offices, plant rooms, audiological rooms

    Lafarge Plasterboard recommends the installation ofAcoustiShield

    to increase sound absorption in noisy areas such as in hotels and

    restaurants.

    AcoustiShield can be used on walls and ceilings to achieve Noise Reduction Coefficients

    as high as 0.85. Available in three unique patterns, it adds a designer look.

    coustiShield for Aesthetics and Noise Reduction

    The advantages of using AcoustiShield include:

    Excellent sound absorption (controlling reflection)

    A unique aesthetic appearance provided by superior quality perforationsA smooth finished surface provided by recessed edges

    Prevention of dust emission and improved sound absorption due to the protective mat fixed to the backof the plasterboard.

    65

    60

    55

    50

    45

    40

    35

    30

    125 250 500 1000 2000 4000

    1.2

    1

    0.8

    0.6

    0.4

    0.2

    0

    Frequency range w ere uman vo ce

    s strongest an requenc es at w c

    Acoust S e s most e ect ve at

    bsorbng soun

    ONETHIRDOCTAVE

    RMSLEVEL[dBSPL]

    [THEHUMANVOICE

    ]

    Source Lafarge Gypsum Division Technical Development Centre.

    Mineral Fibre ceiling tile (1200x600x20mm) on ceiling grid with plenum of 25cm (NRC 0.95).

    THE HUMAN VOICE

    AcoustiShield

    MINERAL FIBRE

    ABSORPTION

    [ACOUSTISHIELDAND

    MINERALFIBRE]

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    ABUSE RESISTANCE

    Areas subject to wear and tear need special consideration to reduce damage and maintenance costs.

    High traffic and wear areas are commonly found in:

    Shopping centres Educational facilities Hotels

    Airports Correctional centres Hospitals.

    Soft body tests were carried out by swinging a sand filled bag into a test wall according to ISO 7892:1998. They

    simulate the kind of loads applied to a wall system by the human body. The hard body tests were carried out by

    dropping two differently sized steel balls from a set height and measuring the depth of the indentation caused by

    the impact. Hard body tests simulate loads such as a trolley or swinging a heavy suitcase.

    Two conditions were measured for each of these tests:

    Energy required for surface cracking Energy required for complete penetration.

    Surface cracking would normally require a minor repair. Complete penetration of the wall lining could require a

    major repair and possible replacement of the affected panel.

    Lafarge GIB Toughline for Abuse Resistance

    Lafarge Plasterboard recommends the installation of Lafarge

    GIB Toughlineto minimise wear and tear in high traffic areas.

    Lafarge GIB Toughline is an impact resistant plasterboard reinforced

    with a continuous fibreglass mesh embedded in a high density core.

    The benefits of Lafarge GIB Toughlineinclude:

    High resistance to marks, scores, dents and holesTwice as tough and hard as standard 13mm plasterboard

    Same installation as standard plasterboard

    Easy and economical to repair.

    13mm GIB Toughline can be substituted for 13mm FireShield in any system and will maintain fire and acoustic

    performance.

    Lafarge GIB Toughline is not intended to safeguard against damage from deliberate attack with heavy tools or in

    areas where heavy moving machinery may contact the walls (eg. unprotected forklift operating areas).

    STANDARDPLASTERBOARD 13mm

    FIBRE CEMENT9mm

    TOUGHLINE13mm

    100%

    80%

    60%

    40%

    20%

    0%TOUGHNESSINDEX

    Soft Body Cracking

    Soft Body Penetration

    Hard Body Cracking

    Hard Body Penetration

    Comparative Impact Performance Indexed to Toughline

    Testing of Abuse Resistant Linings

    Both hard and soft body impact tests were used to

    measure the performance of abuse resistant linings,

    the results are displayed in the graph.

    Consider the following to minimise damage in High Wear Areas

    Sometimes the protection is only required below the dado rail / chair rail

    Make thoroughfares as wide as practical

    Install doorstops on all door openings.

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    X-RAY RESISTANCE

    Medical X-Ray diagnostic rooms require the use of protective barriers to shield operators and occupants

    of adjacent areas against unacceptable levels of radiation.

    The level of protection required depends on:

    occupancy of adjacent areas

    frequency of use of X-Ray equipment

    intensity and energy of X-Rays being generateddirection of primary X-Ray beam.

    Lafarge Plasterboard recommends the use of Lafarge GIB

    X-Blocksystems to provide X-Ray radiation protection in medical

    X-Ray diagnostic rooms within medical facilities and dental clinics.

    Lafarge GIB X-Blockis a lead free plasterboard system which provides an

    effective radiation barrier. It eliminates the need for complex and costly installation

    procedures usually associated with installing lead based lining systems.

    afarge GIB X-Block for Radiation Shielding

    [REFER TO LAFARGE PLASTERBOARD TECHNICAL BULLETIN 113.1 X-RAY SHIELDING SYSTEMS FOR SYSTEM AND INSTALLATION DETAILS]

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    4 SYSTEMS & INSTALLATION GUIDE

    4.1 INTERNAL WALLS

    4.1.1 Internal Steel Walls 34

    4.1.2 Masonry Walls with Plasterboard 894.1.3 Wet Areas 101

    4.2 EXTERNAL WALLS

    4.2.1 External Steel Walls 114 4.2.2 External Structural Walls 123

    4.3 SPECIALTY WALLS 4.3.1 Shaft Wall 130 4.3.2 Security Walls 144

    4.4 CEILINGS 4.4.1 Ceilings (Under Floors & Under Roofs) 147

    4.5 SPECIALTY CEILINGS

    4.5.1 Steel Stud Ceilings 184

    4.5.2 Horizontal Shaft Wall 192

    4.6 SPECIALTY SYSTEMS

    4.6.1 Soil & Waste Pipe 198 4.6.2 Laminated Vertical Duct 202

    4.6.3 Column & Beam Protection 208

    4.6.4 Fire Escape Tunnel 215

    4.7 INTERIOR DESIGN

    4.7.1 Curved Walls & Ceilings 221 4.7.2 Noise Absorbing Ceilings 226

    33

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    INTERNAL

    STEEL

    WALLS

    4.1.1

    TECHNICAL ADVICE 1300 724 505 34 lafargeplasterboard.com.au

    Internal steel walls are used in

    commercial applications such as office

    buildings and apartment blocks. They

    are light weight, quick to install, and the

    components are easy to deliver on site.

    This section includes systems, installationinstructions and construction details for

    general and fire rated internal steel walls.

    ACOUSTIC REQUIREMENT FIRE RATING SYSTEM PAGE

    Rw>_ 45

    -/60/60 LSW60 45

    -/90/90 LSW70 47

    -/120/120 LSW62 45

    Rw>_ 50

    -/60/60 LQSW70 55

    -/90/90 LQSW70 55

    -/120/120 LSW62 45

    Rw>_ 50 and ImpactSound Insulation

    -/60/60 LSW260 51

    -/90/90 LSW161 49

    -/120/120 LSW162 49

    Rw>_ 50 andDiscontinuous Construction

    -/60/60 LSW260 51

    -/90/90 LSW270 51

    -/120/120 LSW262 51

    Rw + Ctr>_50

    -/60/60 LSW162 49

    -/90/90 LSW162 49

    -/120/120 LSW162 49

    Rw + Ctr>_50 andDiscontinuous Construction

    -/60/60 LSW501 53

    -/90/90 LSW501 53

    -/120/120 LSW262 51

    QUICK REFERENCE GUIDE

    For walls surrounding Sole Occupancy Units (SOUs)

    INTERNAL STEEL WALLS

    SYSTEMS 35

    Non-Fire Rated Systems 35

    MastaShield 35

    SoundShield 39

    Fire Rated Systems 45

    FireShield 45

    FireShield with Fibre cement 56

    INSTALLATION 62

    General Requirements 62

    Framing 63

    Maximum Wall Height Tables 64

    Plasterboard Layout 67

    Plasterboard Fixing 68

    CONSTRUCTION DETAILS 75

    INTRODUCTION

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    INTERN

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    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 35 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 10mm MastaShield

    [SIDE 2] 1 layer of 10mm MastaShield

    FRAME Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW10

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 10mmMastaShield

    [SIDE 2] 2 layers of 10mmMastaShield

    FRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW11

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 10mmMastaShield

    [SIDE 2] 2 layers of 10mmMastaShieldFRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW12

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    51 0.5 2.77 71 33 (24) 37 (29) 37 (29) -0.75 2.91

    640.5 3.33

    84 33 (24) 39 (30) 38 (30) -0.75 3.931.15 4.17

    760.55 3.70

    96 33 (24) 39 (30) 39 (30) 39 (30)0.75 4.431.15 4.65

    920.55 4.54

    112 33 (25) 40 (31) 40 (31) 40 (31)0.75 4.831.15 5.11

    150 0.75 6.55 170 35 (25) 43 (33) 42 (32) 43 (33)1.15 7.22

    51 0.5 2.77 81 37 (28) 42 (34) 42 (34) -0.75 2.91

    64 0.5 3.33 94 38 (29) 43 (34) 43 (34) -0.75 3.931.15 4.17

    760.55 3.70

    106 38 (29) 44 (35) 44 (35) 44 (35)0.75 4.431.15 4.65

    920.55 4.54

    122 38 (29) 45 (35) 45 (35) 45 (35)0.75 4.831.15 5.11

    150 0.75 6.55 180 40 (29) 48 (38) 48 (38) 48 (38)1.15 7.22

    51 0.5 2.77 91 40 (31) 47 (37) 47 (37) -0.75 2.91

    640.5 3.33

    104 41 (32) 48 (37) 48 (37) -0.75 3.931.15 4.17

    760.55 3.70

    116 41 (32) 49 (39) 49 (38) 49 (39)0.75 4.431.15 4.65

    92 0.55 4.54 132 42 (32) 50 (40) 50 (40) 50 (40)0.75 4.831.15 5.11

    150 0.75 6.55 190 44 (36) 53 (44) 52 (43) 53 (44)1.15 7.22

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    INTERNAL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 36 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 13mm MastaShield

    [SIDE 2] 1 layer of 13mm MastaShield

    FRAME Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW15

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 13mmMastaShield

    [SIDE 2] 2 layers of 13mmMastaShield

    FRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW16

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 13mmMastaShield

    [SIDE 2] 2 layers of 13mmMastaShieldFRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW17

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    51 0.5 3.20 77 33 (26) 41 (33) 41 (32) -0.75 3.32

    640.5 3.72

    90 34 (26) 42 (33) 41 (32) -0.75 4.221.15 4.43

    760.55 4.13

    102 34 (26) 43 (33) 42 (33) 43 (33)0.75 5.021.15 5.22

    920.55 4.94

    118 35 (27) 43 (33) 43 (33) 43 (33)0.75 5.501.15 5.75

    150 0.75 6.99 176 37 (27) 45 (37) 45 (36) 45 (37)1.15 7.54

    51 0.5 3.20 90 39 (31) 46 (36) 45 (36) -0.75 3.32

    64 0.5 3.72 103 39 (31) 47 (37) 47 (37) -0.75 4.221.15 4.43

    760.55 4.13

    115 40 (31) 47 (37) 47 (37) 47 (37)0.75 5.021.15 5.22

    920.55 4.94

    131 40 (31) 49 (39) 48 (39) 49 (39)0.75 5.501.15 5.75

    150 0.75 6.99 189 42 (32) 50 (42) 50 (42) 50 (42)1.15 7.54

    51 0.5 3.20 103 42 (33) 50 (40) 50 (40) -0.75 3.32

    640.5 3.72

    116 43 (33) 51 (41) 51 (41) -0.75 4.221.15 4.43

    760.55 4.13

    128 44 (34) 52 (43) 52 (43) 52 (43)0.75 5.021.15 5.22

    92 0.55 4.94 144 44 (34) 53 (44) 53 (44) 53 (44)0.75 5.501.15 5.75

    150 0.75 6.99 202 47 (39) 54 (47) 54 (47) 54 (47)1.15 7.54

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    INTERN

    AL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 37 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 10mm MastaShield

    [SIDE 2] 1 layer of 10mm MastaShield

    FRAME Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE

    (mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)

    ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    UseAcoustiThermR2.5 95mm

    glass-wool toachieve 45 (33)

    WALL LINING: [SIDE 1] 1 layer of 10mmMastaShield

    [SIDE 2] 2 layers of 10mmMastaShield

    FRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 10mmMastaShield

    [SIDE 2] 2 layers of 10mmMastaShieldFRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    LSW110

    LSW111

    LSW112

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    64mm in76mm track

    0.5 2.375

    106 37 (29) 46 (35) 46 (35) 47 (36)0.75 2.831.15 3.51

    76mm in92mm track

    0.55 2.61

    122 37 (29) 47 (35) 47 (35) 48 (36)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    180 38 (29) 49 (38) 49 (38) 50 (39)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    96 33 (25) 41 (30) 41 (30) 42 (31)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    112 33 (26) 42 (31) 42 (31) 43 (32)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    170 34 (26) 44 (32) 44 (32) 45 (33)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    116 41 (33) 51 (40) 50 (40) 51 (41)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    132 42 (33) 52 (42) 51 (42) 52 (43)0.75 3.00

    1.15 3.6092mm in

    150mm track

    0.55 2.74

    190 44 (34) 53 (45) 53 (45) 54 (46)0.75 3.19

    1.15 3.75

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    INTERNAL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 38 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 13mm MastaShield

    [SIDE 2] 1 layer of 13mm MastaShield

    FRAME Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 13mmMastaShield

    [SIDE 2] 2 layers of 13mmMastaShield

    FRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 13mmMastaShield

    [SIDE 2] 2 layers of 13mmMastaShieldFRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    LSW115

    LSW116

    LSW117

    64mm in76mm track

    0.5 2.375

    128 44 (35) 53 (44) 53 (44) 54 (45)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    144 44 (35) 54 (46) 53 (46) 54 (47)0.75 3.00

    1.15 3.6092mm in

    150mm track

    0.55 2.74

    202 47 (37) 55 (49) 55 (48) 56 (49)0.75 3.19

    1.15 3.75

    64mm in

    76mm track

    0.5 2.375

    115 40 (32) 49 (39) 49 (39) 50 (40)0.75 2.831.15 3.51

    76mm in92mm track

    0.55 2.61

    131 40 (32) 50 (40) 49 (40) 50 (41)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    189 42 (33) 51 (44) 51 (44) 52 (45)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    102 34 (27) 44 (33) 44 (33) 45 (34)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    118 35 (27) 45 (33) 44 (33) 45 (34)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    176 36 (28) 46 (36) 46 (36) 47 (37)0.75 3.19

    1.15 3.75

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    INTERN

    AL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 39 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 10mm SoundShield

    [SIDE 2] 1 layer of 10mm SoundShield

    FRAME Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW20

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShield

    FRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW21

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShieldFRAME: Steel studs at maximum 600mm centres

    FRL

    - / - / -

    LSW22

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    51 0.5 2.77 71 33 (26) 41 (33) 41 (33) -0.75 2.91

    640.5 3.33

    84 34 (26) 42 (33) 42 (33) -0.75 3.931.15 4.17

    760.55 3.70

    96 34 (26) 43 (34) 42 (34) 43 (34)0.75 4.431.15 4.65

    920.55 4.54

    112 35 (27) 43 (34) 43 (34) 43 (34)0.75 4.831.15 5.11

    150 0.75 6.55 170 37 (27) 46 (36) 45 (36) 46 (36)1.15 7.22

    51 0.5 2.77 81 39 (31) 46 (37) 46 (36) -0.75 2.91

    64 0.5 3.33 94 39 (31) 46 (37) 46 (37) -0.75 3.931.15 4.17

    760.55 3.70

    106 40 (31) 48 (37) 47 (37) 48 (37)0.75 4.431.15 4.65

    920.55 4.54

    122 40 (31) 49 (39) 48 (39) 49 (39)0.75 4.831.15 5.11

    150 0.75 6.55 180 42 (32) 50 (42) 50 (42) 50 (42)1.15 7.22

    51 0.5 2.77 91 43 (33) 50 (40) 50 (40) -0.75 2.91

    640.5 3.33

    104 43 (33) 51 (42) 51 (42) -0.75 3.931.15 4.17

    760.55 3.70

    116 44 (34) 52 (43) 52 (43) 52 (43)0.75 4.431.15 4.65

    92 0.55 4.54 132 45 (34) 53 (44) 53 (44) 53 (44)0.75 4.831.15 5.11

    150 0.75 6.55 190 47 (39) 54 (47) 54 (47) 54 (47)1.15 7.22

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    INTERN

    AL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 41 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 10mm SoundShield

    [SIDE 2] 1 layer of 10mm SoundShield

    FRAME Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShield

    FRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShieldFRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    LSW120

    LSW121

    LSW122

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    TESTED SYSTEM

    TESTED SYSTEM

    64mm in76mm track

    0.5 2.375

    106 40 (32) 49 (39) 49 (39) 50 (40)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    122 40 (32) 50 (40) 49 (40) 50 (41)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    180 42 (33) 51 (44) 51 (44) 52 (45)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    96 34 (27) 44 (33) 44 (33) 45 (34)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    112 35 (28) 45 (33) 44 (33) 45 (34)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    170 37 (28) 46 (36) 46 (36) 47 (37)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    116 44 (35) 53 (45) 53 (44) 54 (45)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    132 44 (35) 54 (46) 54 (46) 55 (47)0.75 3.00

    1.15 3.6092mm in

    150mm track

    0.55 2.74

    190 47 (37) 55 (49) 55 (49) 56 (50)0.75 3.19

    1.15 3.75

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    INTERNAL

    STEEL

    WALLS

    4.1.1

    SYSTEMS

    TECHNICAL ADVICE 1300 724 505 42 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 13mm SoundShield

    [SIDE 2] 1 layer of 13mm SoundShield

    FRAME Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 1 layer of 13mmSoundShield

    [SIDE 2] 2 layers of 13mmSoundShield

    FRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 13mmSoundShield

    [SIDE 2] 2 layers of 13mmSoundShieldFRAME: Staggered steel studs at maximum 600mm centres

    [300mm staggered]

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    LSW125

    LSW126

    LSW127

    64mm in

    76mm track

    0.5 2.375

    115 44 (35) 52 (45) 52 (44) 53 (45)0.75 2.831.15 3.51

    76mm in92mm track

    0.55 2.61

    131 44 (36) 52 (46) 52 (46) 53 (47)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    189 46 (37) 53 (48) 53 (48) 54 (49)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    102 39 (32) 47 (39) 47 (39) 48 (40)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    118 40 (32) 48 (40) 48 (40) 49 (41)0.75 3.00

    1.15 3.60

    92mm in150mm track

    0.55 2.74

    176 42 (33) 49 (43) 49 (43) 50 (44)0.75 3.19

    1.15 3.75

    64mm in76mm track

    0.5 2.375

    128 48 (41) 58 (50) 58 (50) 59 (51)0.75 2.83

    1.15 3.51

    76mm in92mm track

    0.55 2.61

    144 49 (42) 58 (51) 59 (51) 59 (52)0.75 3.00

    1.15 3.6092mm in

    150mm track

    0.55 2.74

    202 51 (43) 59 (53) 59 (53) 60 (54)0.75 3.19

    1.15 3.75

    TESTED SYSTEM

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    TECHNICAL ADVICE 1300 724 505 43 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 10mm SoundShield

    [SIDE 2] 1 layer of 10mm SoundShield

    FRAME Rondo QUIET STUDSat maximum 600mm centres

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT(m)

    Non-Load BearingNo Noggings

    WALL WIDTH(mm)

    ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    WALL LINING: [SIDE 1] 1 layer of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShield

    FRAME: Rondo QUIET STUDSat maximum 600mm centres

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingNo Noggings

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    WALL LINING: [SIDE 1] 2 layers of 10mmSoundShield

    [SIDE 2] 2 layers of 10mmSoundShieldFRAME: Rondo QUIET STUDSat maximum 600mm centres

    FRL

    - / - / -

    LQSW20

    LQSW21

    LQSW22

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingNo Noggings

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    92

    0.55 3.70600mm spacing

    132 47 (39) 56 (47) 56 (47) 57 (48)

    0.75 4.02450mm spacing

    92 0.55

    3.70600mm spacing

    122 42 (36) 52 (42) 51 (42) 52 (43)

    4.02450mm spacing

    92 0.55

    3.70600mm spacing

    112 36 (30) 45 (35) 45 (35) 46 (36)

    4.02450mm spacing

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    TECHNICAL ADVICE 1300 724 505 44 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 1 layer of 13mm SoundShield

    [SIDE 2] 1 layer of 13mm SoundShield

    FRAME Rondo QUIET STUDSat maximum 600mm centres

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT(m)

    Non-Load BearingNo Noggings

    WALL WIDTH(mm)

    ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    WALL LINING: [SIDE 1] 1 layer of 13mmSoundShield

    [SIDE 2] 2 layers of 13mmSoundShield

    FRAME: Rondo QUIET STUDSat maximum 600mm centres

    FRL

    - / - / -

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingNo Noggings

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    WALL LINING: [SIDE 1] 2 layers of 13mmSoundShield

    [SIDE 2] 2 layers of 13mmSoundShieldFRAME: Rondo QUIET STUDSat maximum 600mm centres

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingNo Noggings

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Acoustic PartitionBatt 50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-12

    LQSW25

    LQSW26

    LQSW27

    92 0.55

    4.13600mm spacing

    144 52 (45) 59 (53) 59 (53) 60 (54)

    4.41450mm spacing

    92 0.55

    4.13600mm spacing

    131 47 (40) 55 (47) 55 (47) 56 (48)

    4.41450mm spacing

    92 0.55

    4.13600mm spacing

    118 42 (35) 50 (42) 50 (42) 51 (43)

    4.41450mm spacing

    FRL

    - / - / -

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    TECHNICAL ADVICE 1300 724 505 46 lafargeplasterboard.com.au

    WALL LINING: [SIDE 1] 3 layers of 13mm FireShield

    [SIDE 2] 3 layers of 13mm FireShield

    FRAME: Steel studs at maximum 600mm centres

    [13mm FireShield can be substituted with 13mm Toughline]

    FRL

    - / 120 / 120rated from both sides

    BRANZ FAR2827

    LSW64

    STUD SIZE

    (mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)

    ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 2 layers of 13mmFireShield

    [SIDE 2] Optional Wall Lining

    FRAME: Steel studs at maximum 600mm centres

    [13mm FireShield can be substituted with 13mm Toughline]

    FRL

    - / 30 / 30

    30 / 30 / 30

    rated from thesheeted side only

    BRANZ FAR2827

    LSW66 (previously PS116)

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    WALL LINING: [SIDE 1] 3 layers of 13mmFireShield

    [SIDE 2] Optional Wall Lining

    FRAME: Steel studs at maximum 600mm centres

    [13mm FireShield can be substituted with 13mm Toughline]

    FRL

    - / 90 / 90

    90 / 90 / 90

    rated from thesheeted side only

    BRANZ FAR2827

    LSW67 (previously PS117)

    STUD SIZE(mm)

    MAX HEIGHT

    (m)

    Non-Load BearingStud @ 600mm

    WALL WIDTH

    (mm)ACOUSTICS Rw (Rw + Ctr)

    Stud Depth Stud BMT No InsulationGlasswool

    Partition Batt50mm

    PolyesterISB3 65mm

    PolyesterPolycousticBatt 75mm

    Day Design3094-33

    51 0.5 3.20 129 50 (43) 58 (50) 58 (50) -0.75 3.32

    640.5 3.60

    142 51 (43) 58 (51) 58 (51) -0.75 3.881.15 4.43

    760.55 3.98

    154 52 (44) 59 (52) 59 (52) 59 (52)0.75 4.411.15 5.08

    920.55 4.59

    170 53 (45) 59 (53) 59 (53) 59 (53)0.75 5.091.15 5.75

    150 0.75 6.99 228 56 (48) 60 (55) 60 (55) 60 (55)1.15 7.54

    TESTED SYSTEM

    51 0.5 2.32 77 34 (30) - - -0.75 2.60

    640.5 2.72

    90 34 (30) - - -0.75 3.251.15 3.58

    760.55 3.24

    102 34 (30) - - -0.75 3.821.15 4.05

    920.55 3.61

    118 34 (30) - - -0.75 4.181.15 4.69

    150 0.75 5.37 176 34 (30) - - -1.15 6.81

    51 0.5 2.32 90 37 (34) - - -0.75 2.60

    640.5 2.72

    103 37 (34) - - -0.75 3.251.15 3.58

    760.55 3.24

    115 37 (34) - - -0.75 3.821.15 4.05

    92 0.55 3.61 131 37 (34) - - -0.75 4.181.15 4.69

    150 0.75 5.37 189 37 (34) - - -1.15 6.81

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    TECHNICAL ADVICE 1300 724 505 47 lafargeplasterboard.com.au