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The versatility of Harditex is unsurpassed for newhomes. townhouses, ground level and upper storeyextensions. recladding established homes. andcommercial fascias .

Offering the durability and peace of mind of fibrecement, Harditex is the complete cladding systemfor today's architecture .

Lightweight External Cladding System

Monolithic design is today's architectural trend.

Strong, bold statements are being made in both theresidential and commercial fields. Superb homesthat reflect the lifestyles of the discerning, andprestigeous low-rise commercial complexes thatenhance a company's image.

Developed especially for this style of architecture.Harditex is the preferred exterior cladding substrate .When comparing the benefits Harditex is an exteriorcladding in its own right and does not rely solely onthe texture coating for its performance as do manyother systems.

The special Harditex base sheets provide a suitablebase for textured coatings. The recessed edge ofthe Harditex sheet is designed to accommodateflexible jointing tape systems to achieve a monolithicflush finish.

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ABOVEBuilt for the sun, but with privacy as the main design requirement,the use of Harditex for this family home has allowed the cleanuncluttered lines of the architecture to become a feature, balancedwith the luxurious plantings in the outdoor living spaces.

BELOWPrestige and position, a company's image is reflected by itspremises. The Auckland Sun's new buildir1g. another trend setti"glow rise commercial development.

COVEROverlooking Auckland's harbour, this magnificent home is on theleading edge of today's designs. This look has been acheived bythe use of a texture sprayed fibre cement exterior .

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Harditex base sheets are a light-grey fibre cementsheet. The name 'Harditex' is printed on the facetogether with the required nail fixing positions.

Sheet Thickness and SizesDimensions shown are nominal

Length 1800mm2400mm2700mm3000mm1200mm

7.5mmWidthThickness

COMPOSITION

Portland cement, ground sand, cellulose fibre andwater.

DURABILITY

Under normal conditions Hardie's Building Productsare not affected by insects, termites, sunlight orsteam and will not split or rot.

Any special conditions or unusual applications shouldbe referred to the technical staff of James Hardie &Coy Pty Limited for advice.

FIRE PROPERTIES

Hardie's Building Products will not burn and havethe following "Early Fire Hazard Indices" (tested toAS 1530 Part 3- 1982).Ignition Index 0Flame Spread Index 0Heat Evolved Index 0Smoke Developed Index 0

MassThe approximate mass of 7.5mm Harditex atequilibrium moisture content is 10.7 kg/m2.

Sheet Edge FinishThe sheets are recessed on both sides and one endto take a reinforced bedded joint detail applied bythe coating contractor. This allows for a monolithicfinish at both the vertical and horizontal joint detail.

Sheets should generally be stacked on edge or laidflat on a smooth level surface. Edges and cornersshould be protected from chipping .

To ensure optimum performance sheets must bestored under cover and kept dry prior to fixing. If thesheets should become wet, allow to dry thoroughlybefore fixing is commenced.

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3-.=:3-.

3c:

3

~-#=3

3

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40mm

Fig. 1 Hardiflex Nail

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Perforated PaperReinforcing Tape

Fig.2

Harditex cladding systems are suitable for bothcommercial and domestic applications. These shouldbe limited to 2 storeys in height unless specific designfor the attachment of the Harditex sheets to thestructure is undertaken.

Unless kiln dried timber is utilised for the floor joistsin a two-s:torey situation, a horizontal control jointwill be required. Harditex should not be used in polehouse construction where excessive structuralmovement could be encountered.

Vertical and horizontal expansion joints must beprovided to limit the monolithic cladding area to

225m .

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Suitable cutting methods are 'score-and-snap', handguillotine, hand sawing and power sawing.'Score-and-snap'Method'Score-and-snap' isa fast and efficient method ofcutting using Hardie's special tungsten tipped 'score.and-snap' knife. Refer Fig. 3.

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Procedure:.Preferably score from the face side of the sheet ..Position straight edge along line of cut,.Score against straight edge and repeat action to

obtain adequate depth for clean break -normallyone-third of sheet thickness .

.Snap upwards to achieve break.

.Clean up edges with a rasp if necessary .

/:;?-'Reflected in the late afternoon sun, the Harditex walls showclearly the balance acheived between dramatic architecture andsoftness of texture.

Straight edge

Fig. 3 'Score-and-snap' Method

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Hand Guillotine MethodThe Jiffy brand hand guillotine produces clean ,straight edges. Make the guillotine cut on the off-cutside of line to allow for the thickness of blade.

Hand Sawing MethodHand sawing is suitable for general cuttingoperations and for small cuts, notching or smallpenetrations. Preferably use an old handsaw. Aquick forward jabbing action is best.

For neatness, mark out the cuts to be made on theface side of the sheet. Where small notches are tobe made, cut the two sides with the handsaw orhand guillotine, score along the face with the 'score-and-snap' knife and snap upwards.

Power Sawing MethodPower cutting using a diamond saw blade gives anacceptable edge. All power cutting operations shouldbe carried out in open air situations or in wellventilated spaces.

Small rectangular or circular holes can be achievedby drilling a series of small holes around the perimeterof the hole then tapping out the waste piece fromthe sheet face. Tap carefully to avoid damage tosheets and clean rough edges with a rasp.Note: Do not form holes through sheets with coldchisels, heavy hammers or any other 'aggressive'methods. Such forceful methods will damage sheetsand may cause other problems at a later date.

For larger rectangular penetrations proceed asfollows:-Mark out the penetration on the face surface.-Drill a hole in each corner .-Score to the outside of the holes to 1/3 sheet

depth.-Turn sheet over and score the reverse face to

1/3 sheet depth using the drill holes as areference.

-Knock out the scored material to form thepenetration hole .

~So mm min at corner,

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i50i11n1maxcT' ,.1 .

... :mmmm

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150mmll1aJl.

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Fig. 4 Vertical Sheet Fixing

~ 7.5 mm Harditex sheet

strip 2.5mm thick x BOmmwide

Double stud separated

~ 1- 6mm gap

Fig. 5 Vertical Expansion Joint Detail

Timber studs

BOmm wide

x 2.5mm thick

strip of Inseal 5375

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Hardiflex Nails

:-LkHarditex sheet.

Fig. 6 Internal Corner Detail

FRAMING

-All timber framing should be in accordance withNZS 3604 1984.

-Harditex should not be fixed to timber framingwith a moisture content in excess of 24% and forfully air conditioned buildings moisture contentmust not exceed 18% in accordance with NZS3602 1975. Kiln dried timber is preferable tominimise shrinkage.

-Studs and noggings should be a minimum of ex.50mm wide to give sufficient width to fix sheetsatjoints. Studs shall be at maximum 600mmcentres and noggings at 1200mm centres.

-All Harditex sheet edges must be fully supportedby the framing. Framing must be rigid and notrely on the Harditex for stability.

-Vertical expansion joints must be provided at5400mm max. centres. Independent verticalframing should be provided at joints with a 6mmgap between (Refer Fig 5).

-All studs and nogs to be checked before theHarditex is fixed for line and face accuracy toensure the timber stud wall has a true accurateoutside face to fix the sheet .

Fixing-A breather type building paper is to be fixed to

the outside face of the framing before fixing theHarditex sheet.

-Sheets must be thoroughly dry before fixing iscommenced.

-Sheet to be held firmly against stud when nailing.

-Commence fixing from centre of all sheets andwork outwards to ensure they are hard againstframing to eliminate any 'drumminess'.

7.5mm Harditex sheet

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Timber studs

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BOmm wide x 2.5mm thickstrip of Inseal5375

Hardiflex nails J...

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.y; -2mm gap

Fig. 7 External Corner Detail

~-Fix in conjunction with the dot pattern on the

sheet using 40mm x 2.5mm galvanised flat headHardiflex nails at 150mm centres to the perimeterof sheets. intermediate studs and noggings.Nails must be hammer driven flush with thesheet surface. Do not fix closer than 12mm tosheet edge or 50mm to the corner of the sheet.

-At internal and external corners adhere a strip ofInseal5375 in position before fixing sheets (ReferFig 6.7).

1-2mm gap

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Building Paper

Fig. 8 Sheet Joint Detail

nominal6mm

The recessed edge of the Harditex sheet is designedto accommodate a tape-reinforced flexible jointingsystem. to achieve a monolithic flush finish withtextured coatings .Where sheet end joints coincide above and belowdoor or window lines. joints may crack due tostructural movement. The suggested method toaccommodate this possibility is to provide additionalflashing behind thejoint. (Refer Fig. 9). Alternativelyfix sheets across door and window openings thencut away waste sheet (Refer Fig. 10).

Fig.9 Expressed Joint Detail

To achieve a high standard monolithic surface finish,the Harditex external cladding sheets have beendeveloped to receive proven proprietory high-buildflexible acrylic surface coatings.As the sheetjointing, sealing and coating is anintegral part of the texture coating manufacturers'system and its warranty, the work should only beundertaken by their licensed applicators.James Hardie & Coy Pty Limited have developedHarditex as the most suitable cladding substrate fortexture coating systems. The successfulperformance of the textured coating systemsdepend on numerous factors outside the company'scontrol and therefore James Hardie & Coy PtyLimited accepts no responsibility for the coatings'performance.

Sheet Layout for openings

/Endjoints should notcoincide with corners ofdoor or window openingsas joints may crack due toframe movement

Fig. 10

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-Security

-Durability-Fire Resistance

-Safety

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An artist's impression of hovv the strong lines of today'sarchitecture can be acheived vvith the use of fibre cement

In today's economic environment any investment inresidential or commercial property is a large one.Therefore all building products used. need to offerthe security of proven performance.

Hardie's fibre cement building products offer suchsecurity.They are products with proven durability.Unaffected by water. they do not rot. They do nottwist or warp on the framing and they have a zerofire rating. This makes fibre cement one of the safestbuilding materials on the market today.

For further information on the extensive range ofHardie's fibre cement building products, pleasecontact any of the addresses below.

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The systems recommended in this Brochure areformulated along the lines of good building practiceand are intended to assist experienced tradespeoplein construction procedures. However, the Brochureis not intended to be an exhaustive statement of allrelevant data. Further, as the successful installationof these systems depends on numerous factorsoutside the Company's control (e.g. quality ofworkmanship, particular design requirements, etc.)the Company accepts no responsibility for or inconnection with the quality of the systems, or theirsuitability for any purpose when installed .All conditions, warranties, obligations and liabiliti(~of any kind which are or may be implied or impos~to the contrary by any statute, rule or regulation orunder the general law and whether arising from thenegligence of the Company, its servants or agentsor otherwise are hereby excluded except to theextent that the Company may be prevented by anystatute, rule or regulation from doing so.Hardie's reserve the right to revise without noticeinformation and specification herein.

James Hardie & Coy Pty Limited have developedHarditex as the most suitable cladding substrate .The successful performance of textured coatingsystems depend on numerous factors outside thecompany's control and therefore James Hardie &Coy Pty Limited accepts no responsibility for thecoatings' performance.

I HARDIE &

COYo PTYo, LIMITEDA division of James Hardie Impey Limited

OFFICESHead Office and Works:50 O'Rorke Road,PenroseAUCKLAND

Postal Address:P.O. Box 12-070AUCKLANDTelephone 599-919Telex 21355Fax 597210

SALES OFFICES11-19 Downer Street.Lower HuttWELLINGTON

Postal Address:P.O. Box 30-482Lower HuttTelephone: 693-251.693-252

~"',\272 Tuam Street.CHRISTCHURCH

Postal Address:P.O. Box 325CHRISTCHURCHTelephone: 61-209