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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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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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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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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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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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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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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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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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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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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].
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SYSTEMS
3.2
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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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SYSTEMSCARE & USE OF PLASTERBOARD
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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
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4.1.1
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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
AL
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SYSTEMS
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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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INTERN
AL
STEEL
WALLS
4.1.1
SYSTEMS
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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INTERNAL
STEEL
WALLS
4.1.1
SYSTEMS
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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INTERNAL
STEEL
WALLS
4.1.1
SYSTEMS
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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INTERN
AL
STEEL
WALLS
4.1.1
SYSTEMS
TECHNICAL ADVICE 1300 724 505 47 lafargeplasterboard.com.au