00357 boral4builders no7

8/10/2019 00357 Boral4Builders no7

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A Boral Plasterboard Publication Summer Edition 2002BuildersBoralfor


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coming events

contents

Technical Trade Committee 2

The Reinforcer 3

Decoration 4-5

Maintenance 6-7

The Cause and the Cure 8-9

New cornice 10-11

Building Approvals 12-13

TecAssist 14

2

In the year 2000, Boral Plasterboard management established a

national Technical Trade Committee to:

review company products

monitor systems performance

oversee technical literature

assess new products.

Boral Plasterboard

Danny Docherty (Vic), Ian Moore (WA), Ray Kennedy (NSW), Mark Nuner (NSW)

David Stephens (Vic), Len Pimm (Chairman), J im Browning (Qld), Adam Bergemann (Vic - absent)

The Committee members have some 275 years of combined

building industry qualifications and experience covering every

aspect of the Australian and overseas building and construction

industries.

The Technical Trade Committee members are drawn

from all states and have a wealth of experience.

They are in daily contact with industry leaders

and are active in technical training, customer

service and solving industry issues.

The Committee meets every two months and

members communicate regularly to providecustomers with well informed feedback.

The Committee has already made a

number of recommendations to improve

systems and reduce site breakdowns.

The most recent being an update to

Garage Ceiling Construction Practices.

If you would like to contribute to the Technical Trade Committees agenda for

industry improvement, please contact your local member or ring Danny and

Bernie at Boral Plasterboard TecASSISTon 1800 811 222

The 57th Federal Conference of

the Federation of Wall and Ceiling

Industries - Australia and New

Zealand, will be held at

Southbank, Brisbane from the

1st - 4th October 2002.

With a focus on technical and

training issues, it is an opportunity

not to be missed.

We look forward to your company.

The Technical Trade

Committee will help to

keep Boral Plasterboard at

the forefront of innovation

and development.

Technical Trade Committee


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NEW! NEW! NEW!

22

The Reinforceris a perforated plastic component that strengthens the internal, externaland mitre butt joints of cove cornice and ClassiCoveTMNew York Cornice.

When correctly installed, The Reinforcersignificantly reduces cracking at cornice

joints. Cracking, which can result from normal building settlement, may involve

costly maintenance.

Features and benefits

easy to install

helps eliminate cracking in cornice joints available to suit 55, 75 and 90mm internal, external and butt joints of cove cornice available to suit 90mm internal, external and butt joints of ClassiCoveTMNew

York Cornice.

Installation instructions

1 apply a liberal quantity of cornice adhesive to the back of The Reinforcer2 fix The Reinforcerto the desired wall and ceiling junctions

3 apply a liberal quantity of cornice adhesive to the back of the cornice or to the

face of The Reinforcer

4 fix first length of cornice, ensuring a good

key is formed with The Reinforcer

5 apply cornice adhesive to

subsequent cornices and fit

toThe Reinforcerto form

a corner or butt joint.

Fit The Reinforcer

into position

Fit cornice

Steps 3, 4 & 5

Step 2

Step 1Apply adhesive to

The Reinforcer

Example of cracking in a cornice joint

What is The Reinforcer?

NEW! NEW! NEW!

3

REMEMBER

TheReinforcerhel

ps

eliminatecrackingincornice

jointsandwillreducecost

ly

maintenance.


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5

Common Problem Areas

Bathroom and ensuite ceilings require specifictreatment and should be painted in accordance

with the manufacturers specifications. Flat

waterbased PVA ceiling paint has a limited life

span in wet areas.

Exterior ceilings to patios, walkways, soffits etcrequire exterior quality paint (no exceptions).

Gloss paints tend to highlight imperfections andshould only be used in conjunction with a level

5 finish. Some of todays feature colours can produce

coverage problems so consult your paint

manufacturer first.

Plasterboard manufacturers recommend the

finish coat be roller applied as nap raising

around joint edges and nail holes are

highlighted when paint is sprayed.

In passageways exposed to glancing light, extracare is required to avoid variations in gloss

levels on jointed surfaces. Be aware that the growing trend towards coloured

ceilings can highlight surface variations. Flat white

ceiling paint will produce the best results.

decoration

Common Problem Areas

Downlights or spotlights in ceilings placedclose to walls and allowed to reflect down the

wall surface.

Any surface mounted fluorescent lights

Any unshaded bare bulbs.

All bare bulbs produce disappointing results in

plaster ceilings. Once faults have been identified

under these lighting conditions the damage is

done. Installation of light shades prior to handoverwill reduce disputes regarding owners perceptions

on quality.

Lighting

Poor paint preparation and/or application

Painting

The effects of lighting on plasterboard. The above pictures are of the

same section of ceiling but taken from different angles.

plaster surfaces


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6

In todays highly competitive environment, costshave a major impact on a builders viability. It is

common to focus on the visual and presentation

aspects of a house, while overlooking unseen

areas for the sake of economy.

We are aware that many new home buyers on

restricted budgets demand value for money and

look for cost savings wherever possible.

In trying to satisfy this market, it is not

uncommon for the appearance of a house to takeprecedence over the structural components.

Unfortunately it is not until later that the

compromises in quality, due to cost cutting, are

met with disappointing results.

When maintenance issues appear, todays shortcutsbecome tomorrows disputes.

It is not always easy to identify the causes of

defects that occur in the finish of interior linings.

Some problems can be so complex that the actual

reasons behind a particular issue may never be

identified.

Spare a thought for the plasterers as it is their work

that is immediately questioned. We need to

remember that plaster is only a surface finishproduct and does not add to the structural integrity

of a building.

It is both interesting and amusing to observe the

dispute resolution process regarding maintenance

issues especially when it comes to apportioning

blame and costs. Some of the fancy footwork and

sidestepping that follows would do any dance

instructor proud. As a result, the real costs of

maintenance issues are seldom quantified. Painters

and plasterers often undertake repairs as an act ofgoodwill or alternatively to avoid conflict and

ensure future business.

When maintenance issues arise they are often the

result of a combination of factors: -

lack of ventilation

no sarking under low pitch tile roofs

absence of proper framing (particularly around

cornice lines and sheet ends)

the use of ceiling joists running parallel

between wide-spaced trusses to obviate the

need for ceiling battens

insufficient framing at directional truss change

shrinkage and/or settlement on large bulkheads,particularly where they support a truss load for

the full length of a room

building movement/reactive soils

slab heaving

plasterboard installed over wet framing

and the list goes on.

Maintenance - at what cost?

maintenance

Moisture due to blowback through tiles

Maintenance

No sarking


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7

With the majority of these issues dealt with andforgotten about in the early life of the building

dont be led into a false sense of security as there

are two more obstacles to overcome.

Firstly, there is an emerging trend whereconsumers are selling their homes earlier than

previous generations. When this happens within

the building guarantee period, the builder is

often be called in to rectify maintenance items in

preparation for the sale. This is a growing cost

that the builder has had little exposure topreviously.

Secondly, prospective buyers of recently builthomes will often negotiate a lower price with an

owner to take account of maintenance items.

Once the sale has been completed, the new

owner sometimes calls in the original builder to

rectify those same items under the terms of the

building guarantee. The new owner has had two

wins. The first being the reduced purchase price

and the second is having the items rectified at

no cost by the builder. This is another growing

area of concern for builders.

As building industry legislation has defined

maintenance responsibilities, consumers have

become more aware of their entitlements due to the

competitive nature of the building industry. There is

a need to ensure that maintenance costs are

minimised.

maintenance

Light fittings only supported by plasterboard Light fittings only supported by plasterboard

Ceiling distortion could be due to many factors

Issues


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8

Inspired by one of Europes most enchanting cities,ClassiCoveTMVenice is the latest addition to Boral

Plasterboards ClassiCoveTMrange of cornices.

Like all things Venetian, ClassiCoveTMis truely

elegant, adding grace and charm to a room with its

sleek shadowline profile.

Capturing the mediaeval splendour of the 1500 year

old city with its fascinating maze of bridges and

canals, the fluid curves of this distinctive cornice

profile are decorative as well as functional.

With a 65mm shadowline profile, ClassiCoveTM

Venice is a departure from the conventional angular

shadowline cornice, offering the advantage of a

gracious shadowline to obscure any paint cracks

that may appear under the bottom edge.

Casting a clean, even shadow on a wall,

ClassiCoveTMVenice will add new dimension to

your room creating an impression of space and

evoking images of captivating buildings in the

delightful city of islands.

Wish that we could be gliding on a gondolathrough the heart of Venice, past grand

Italian palazzos under ornate bridges...Anon

Features and benefits:

complements a variety of colours

the 65mm profile is available in 4.2m lengths

even shadow cast on walls creates theimpression of additional space

flawless finish when decorated

easy to handle

a decorative effect at a less than decorativecornice price.

For more information please contact:

Boral Plasterboard TecAssist

Freecall: 1800 811 222

or visit our website located at:

http://www.plasterboard.boral.com.au

new products

ClassiCove VeniceNew Cornice

ClassiCove Venice Cornice

8


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9


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10

issues The cause and

Proper design

By following manufacturers installation recom-

mendations, plasterboard will not be subjected to

building movement stress. The positioning of

expansion or control joints in plasterboard needs

to be considered at the design phase and clearly

identified on the working drawings. The references

to control joints in manufacturers literature only

cater for movement in the plasterboard and do not

take into account actual building movement.

Building movement areas of particular concern

include:

Girder trusses Directional changes in the roof structure

Large ceiling areas adjoining passageways

Openings without heads.

Careful planning at the design stage helps to

reduce maintenance issues and rectification works.

Wall framing

Wall construction also varies from state to state.Some states prefer metal framing while others

prefer timber or a combination of both. Western

Australia and some areas of North Queensland are

Australia is a vast country with many variations intemperature, rainfall and humidity. These climatic

differences contribute to a range of design and

building techniques being used across Australia.

The installation of plasterboard being one of the

more visible.

Regions with extended wet season and extreme

temperature fluctuations such as Darwin, are

particularly vulnerable, as both of these factors

have an impact on building maintenance issues.

In areas of unfavourable conditions, consideration

should be given to the use of expansion joints both

internally and externally. These should form part of

the normal installation procedure rather than being

used as an extra.

The cause and the cure Article prepared by Emil Plej,Contracting Manager,

West Australia

predominantly brick and/or

block. This introduces

another set of problems

particularly when adhering the

bottom edge of cornice to masonry.

All construction methods have their own special

requirements. Recognising some of these recurring

issues and planning for them can reduce

unwanted and costly callbacks.

The rules are simple:

Build to suit the climate in your area.

Exercise caution when using

designs from other states or worse still, other

countries.

Recognise the benefits of temperature control by

incorporationg ventilation, sisalation, insulation,

overhangs, soffits and light colour roofingmaterials in your next project.

Reduce maintenance costs by

using the correct fastenersBoral has introduced a new and simplified

plasterboard fixing screw classification.

D W L SD Type

for steel BMT0.8 -2.0mm

W Type

for timberonly

L Type

for laminatingplasterboard

S Type

for steel BMTup to 0.8mm

We recommend that only W type screws be used

for timber construction.


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11

With todays modern construction and truss roof directional changes, expansion joints are becoming anecessary part of plasterboard installation. Plasterboard cannot withstand the stress associated with building

movement, especially with the direct fix method.

11

the cure


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Building ApprovalsNumber of new houses & other residential

buildings approved by Statistical Division (SD)

September Quarters 2000 and 2001September Quarters 2000 and 2001September Quarters 2000 and 2001September Quarters 2000 and 2001September Quarters 2000 and 2001Prepared for Boral Plasterboard - November 2001Source: Australian Bureau of Statist ics

Total Total other Total Total Total other Total Total Total other TotalRegionsRegionsRegionsRegionsRegions houses residential residential houses residential residential houses residential residential

building building building

MelbourneMelbourneMelbourneMelbourneMelbourne 4083 2860 6943 6804 3877 10681 66.64 35.56 53.84

BarwonBarwonBarwonBarwonBarwon 387 108 495 716 55 771 85.01 -49.07 55.76

Western DistrictWestern DistrictWestern DistrictWestern DistrictWestern District 61 11 72 200 15 215 227.87 36.36 198.61

Central HighlandsCentral HighlandsCentral HighlandsCentral HighlandsCentral Highlands 130 25 155 313 2 315 140.77 -92.00 103.23

WimmeraWimmeraWimmeraWimmeraWimmera 18 0 18 48 0 48 166.67 0.00 166.67

MalleeMalleeMalleeMalleeMallee 86 20 106 148 0 148 72.09 -100.00 39.62

LoddonLoddonLoddonLoddonLoddon 171 18 189 327 13 340 91.23 -27.78 79.89

GoulburnGoulburnGoulburnGoulburnGoulburn 246 20 266 388 8 396 57.72 -60.00 48.87

Ovens-MurrayOvens-MurrayOvens-MurrayOvens-MurrayOvens-Murray 92 4 96 162 10 172 76.09 150.00 79.17

East GippslandEast GippslandEast GippslandEast GippslandEast Gippsland 79 0 79 148 7 155 87.34 N/A 96.20

GippslandGippslandGippslandGippslandGippsland 218 19 237 379 28 407 73.85 47.37 71.73

VictoriaVictoriaVictoriaVictoriaVictoria 55715571557155715571 30853085308530853085 86568656865686568656 96339633963396339633 40154015401540154015 1364813648136481364813648 72.9172.9172.9172.9172.91 30.1530.1530.1530.1530.15 57.6757.6757.6757.6757.67

Dwelling ApprovalsDwelling ApprovalsDwelling ApprovalsDwelling ApprovalsDwelling ApprovalsSeptember Quarter 2000September Quarter 2000September Quarter 2000September Quarter 2000September Quarter 2000


Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)Victoria



SydneySydneySydneySydneySydney 2353 2429 4782 3329 4410 7739 41.48 81.56 61.84

HunterHunterHunterHunterHunter 530 401 931 769 272 1041 45.09 -32.17 11.82

IllawarraIllawarraIllawarraIllawarraIllawarra 343 55 398 716 244 960 108.75 343.64 141.21Richmond-TRichmond-TRichmond-TRichmond-TRichmond-Tweedweedweedweedweed 187 30 217 358 48 406 91.44 60.00 87.10

Mid-North CoastMid-North CoastMid-North CoastMid-North CoastMid-North Coast 276 75 351 453 136 589 64.13 81.33 67.81

NorthernNorthernNorthernNorthernNorthern 89 14 103 113 9 122 26.97 -35.71 18.45

North WesternNorth WesternNorth WesternNorth WesternNorth Western 66 6 72 113 4 117 71.21 -33.33 62.50

Central WestCentral WestCentral WestCentral WestCentral West 127 17 144 247 16 263 94.49 -5.88 82.64

South EasternSouth EasternSouth EasternSouth EasternSouth Eastern 284 51 335 373 56 429 31.34 9.80 28.06

MurrumbidgeeMurrumbidgeeMurrumbidgeeMurrumbidgeeMurrumbidgee 106 10 116 161 21 182 51.89 110.00 56.90

MurrayMurrayMurrayMurrayMurray 95 0 95 147 4 151 54.74 N/A 58.95

Far WestFar WestFar WestFar WestFar West 2 0 2 2 0 2 0.00 0.00 0.00

New South WalesNew South WalesNew South WalesNew South WalesNew South Wales 44584458445844584458 30883088308830883088 75467546754675467546 67816781678167816781 52205220522052205220 1200112001120011200112001 52.1152.1152.1152.1152.11 69.0469.0469.0469.0469.04 59.0459.0459.0459.0459.04



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)NSW



BrisbaneBrisbaneBrisbaneBrisbaneBrisbane 1731 1213 2944 2893 788 3681 67.13 -35.04 25.03

MoretonMoretonMoretonMoretonMoreton 999 709 1708 1761 968 2729 76.28 36.53 59.78

Wide Bay-BurnettWide Bay-BurnettWide Bay-BurnettWide Bay-BurnettWide Bay-Burnett 237 69 306 402 89 491 69.62 28.99 60.46

Darling DownsDarling DownsDarling DownsDarling DownsDarling Downs 167 2 169 278 21 299 66.47 950.00 76.92

SouthWestSouthWestSouthWestSouthWestSouthWest 16 0 16 27 2 29 68.75 N/A 81.25

FitzroyFitzroyFitzroyFitzroyFitzroy 99 23 122 218 58 276 120.20 152.17 126.23

Central WestCentral WestCentral WestCentral WestCentral West 5 0 5 10 2 12 100.00 N/A 140.00

MackayMackayMackayMackayMackay 95 137 232 218 24 242 129.47 -82.48 4.31

NorthernNorthernNorthernNorthernNorthern 110 21 131 405 67 472 268.18 219.05 260.31

Far NorthFar NorthFar NorthFar NorthFar North 132 30 162 286 97 383 116.67 223.33 136.42

North westNorth westNorth westNorth westNorth west 23 14 37 24 9 33 4.35 -35.71 -10.81

QueenslandQueenslandQueenslandQueenslandQueensland 36143614361436143614 22182218221822182218 58325832583258325832 65226522652265226522 21252125212521252125 86478647864786478647 80.4680.4680.4680.4680.46 -4.19-4.19-4.19-4.19-4.19 48.2748.2748.2748.2748.27



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)Queensland


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PerthPerthPerthPerthPerth 2121 575 2696 3423 554 3977 61.39 -3.65 47.51South EastSouth EastSouth EastSouth EastSouth East 419 34 453 643 74 717 53.46 117.65 58.28

Lower Great SouthernLower Great SouthernLower Great SouthernLower Great SouthernLower Great Southern 73 6 79 99 3 102 35.62 -50.00 29.11

Upper Great SouthernUpper Great SouthernUpper Great SouthernUpper Great SouthernUpper Great Southern 20 0 20 9 0 9 -55.00 0.00 -55.00

MidlandsMidlandsMidlandsMidlandsMidlands 106 10 116 95 12 107 -10.38 20.00 -7.76

South EasternSouth EasternSouth EasternSouth EasternSouth Eastern 22 45 67 56 18 74 154.55 -60.00 10.45

CentralCentralCentralCentralCentral 63 17 80 71 5 76 12.70 -70.59 -5.00

PilbaraPilbaraPilbaraPilbaraPilbara 1 0 1 24 0 24 2300.00 0.00 2300.00

KimberleyKimberleyKimberleyKimberleyKimberley 60 8 68 85 6 91 41.67 -25.00 33.82

Western AustraliaWestern AustraliaWestern AustraliaWestern AustraliaWestern Australia 28852885288528852885 695695695695695 35803580358035803580 45054505450545054505 672672672672672 51775177517751775177 56.1556.1556.1556.1556.15 -3.31-3.31-3.31-3.31-3.31 44.6144.6144.6144.6144.61



AdelaideAdelaideAdelaideAdelaideAdelaide 875 345 1220 1444 340 1784 65.03 -1.45 46.23

Outer AdelaideOuter AdelaideOuter AdelaideOuter AdelaideOuter Adelaide 199 2 201 431 17 448 116.58 750.00 122.89

YYYYYorke and Lower Northorke and Lower Northorke and Lower Northorke and Lower Northorke and Lower North 46 0 46 84 17 101 82.61 N/A 119.57

Murray LandsMurray LandsMurray LandsMurray LandsMurray Lands 45 0 45 103 19 122 128.89 N/A 171.11South EastSouth EastSouth EastSouth EastSouth East 40 0 40 82 8 90 105.00 N/A 125.00

EyreEyreEyreEyreEyre 42 12 54 60 4 64 42.86 -66.67 18.52

NorthernNorthernNorthernNorthernNorthern 32 0 32 39 0 39 21.88 0.00 21.88

South AustraliaSouth AustraliaSouth AustraliaSouth AustraliaSouth Australia 12791279127912791279 359359359359359 16381638163816381638 22432243224322432243 405405405405405 26482648264826482648 75.3775.3775.3775.3775.37 12.8112.8112.8112.8112.81 61.6661.6661.6661.6661.66



Greater HobartGreater HobartGreater HobartGreater HobartGreater Hobart 87 21 108 165 25 190 89.66 19.05 75.93

SouthernSouthernSouthernSouthernSouthern 38 0 38 56 0 56 47.37 0.00 47.37

NorthernNorthernNorthernNorthernNorthern 79 0 79 117 27 144 48.10 N/A 82.28

Mersey-LyellMersey-LyellMersey-LyellMersey-LyellMersey-Lyell 61 0 61 64 2 66 4.92 N/A 8.20

TTTTTasmaniaasmaniaasmaniaasmaniaasmania 265265265265265 2121212121 286286286286286 402402402402402 5454545454 456456456456456 51.751.751.751.751.7 157.14157.14157.14157.14157.14 59.4459.4459.4459.4459.44



DarwinDarwinDarwinDarwinDarwin 55 88 143 103 51 154 87.27 -42.05 7.69

Northern TNorthern TNorthern TNorthern TNorthern Territory - Balerritory - Balerritory - Balerritory - Balerritory - Bal 89 17 106 48 41 89 -46.07 141.18 -16.04

Northern TNorthern TNorthern TNorthern TNorthern Territoryerritoryerritoryerritoryerritory 144144144144144 105105105105105 249249249249249 151151151151151 9292929292 243243243243243 4.864.864.864.864.86 -12.38-12.38-12.38-12.38-12.38 -2.41-2.41-2.41-2.41-2.41



CanberraCanberraCanberraCanberraCanberra 258 117 375 331 78 409 28.29 -33.33 9.07

ACT - BalACT - BalACT - BalACT - BalACT - Bal 1 0 1 1 0 1 0.00 0.00 0.00

ACTACTACTACTACT 259259259259259 117117117117117 376376376376376 332332332332332 7878787878 410410410410410 28.1928.1928.1928.1928.19 -33.33-33.33-33.33-33.33-33.33 9.049.049.049.049.04



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)S A



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)W A



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)Tasmania



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)N T



Variance (%)Variance (%)Variance (%)Variance (%)Variance (%)ACT


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TecASSIST

14

Based in Melbourne, TecASSIST provides technical advice to builders, architects,

contractors, distributors, engineers, regulators and home owners throughout

Australia.

Our friendly team of Danny and Bernie are happy to assist with all your needs.

It doesnt matter if youre a do-it-yourselfer, a contractor, an architect or an

engineer, our team can offer both practical and design input at all levels of the

industry.

TecASSIST has proved so popular that it has handled over 16,000 technical

enquiries relating to projects covering the whole of Australia. In fact, their

reputation has spread so far that they are now receiving calls from overseas.

Get your next project off on the right track by giving Danny and Bernie a call.

TheTecASSISTteam represents over 100

years of practical and professional

experience and covers professions

ranging from architecture to engineering,

building to design, drafting to IT and

trades to business management.

When in doubt, ask!

Telephone: 1800 811 222

Facsimile: 03 9645 1812

Email: [email protected]

Location Telephone Fascimile

Qld 733 Nudgee Rd Northgate 4013 (07) 3215 2244 (07) 3215 2299

NSW Thackeray St Camellia 2142 (02) 9638 0571 (02) 9638 5557

SA 119-121 Bedford St Gillman 5013 (08) 8240 8888 (08) 8341 1004

VIC 676 Lorimer St Port Melbourne (03) 9241 2138 (03) 9646 1912

WA 12 Hoskins Rd Landsdale 6065 (08) 9400 2666 (08) 9302 1133

ACT 7 Barrier St Fyshwick (02) 9280 4243 (02) 9280 5816

TAS 93 Albert Rd Moonah 7009 (03) 6278 9966 (03) 6278 9865

NT Crn CoonawarraRd & Mataram St (08) 8984 4484 (08) 8984 3778

Winnellie 0820Export 676 Lorimer St Port Melbourne 3207 (03) 9214 2138 (03) 9646 1109

The Service

The Team

Sales Offices

Danny Docherty and Bernie Shalekoff

00357 boral4builders no7

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