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    LYSAGHT LOCKED SEAM

    Roong and Walling Solutions

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    LYSAGHT LOCKED SEAM

    1) PRODUCT PROFILE

    LYSAGHT LOCKED SEAM is a

    high quality lightweight engineered

    standing seam roof for use as fully

    supported roong and walling

    cladding in curved, pitched and

    tapered condition. LYSAGHTLOCKED SEAM prole offers

    qualities of economy and durability,

    which are adapted to contemporary

    architecture.

    LYSAGHTLOCKED SEAMoffers:Water tightness - Excellent water

    tightness for areas with high rainfall

    intensity and can be designed to

    with stand high wind conditions.

    Discreet - At 32mm, the specially

    designed height of the standing

    seam contributes to the modernity,

    lightness and regularity of the

    roong in its architectural function;

    particulary when used on morecomplex shapes, giving them a

    distinctive high-tech appearance.

    Outram MRT - Zinc Titanium,Singapore

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    LYSAGHT LOCKED SEAM

    LYSAGHT LOCKED SEAM

    comprises of metal trays mechanically

    seamed during installation, folding

    the panel edges 180 or 360 degrees

    to form an angled or double seam

    producing structurally strong and

    rainproof joints.

    This exclusive seaming process

    integrates both moving and

    non-moving clips into the seam to

    accommodate expansion and

    contraction of the roof panels.

    LYSAGHT LOCKED SEAM is

    based on metal trays roll form in

    the factory, or on site in a controlled

    environment.

    The panels require a solid substrate

    such as LYSAGHT SPANDEK or

    LYSAGHT TRIMDEK Alternatively,

    it can be supported on rigid

    insulation such as rockwool.

    Straight Straight WithDouble Flute

    Convex Tapered Convex Tapered

    2) PHYSICAL PROPERTIES

    Finishes

    Nominal

    Thickness(TCT)(mm)

    Fastener

    Compatibility

    Material

    ManufacturingStandard

    Colour &

    WeatheringCharacteristics

    Cover Width

    (mm)

    Nominal

    Weight(kg/m2)

    Clean COLORBONDSteel

    - Ultra

    - XPD(PVDF paint system)

    - XRW (Polyester)

    0.6

    0.6

    0.6

    510

    510

    510

    5.43

    5.37

    5.37

    Zinc/Aluminum

    Alloy

    Australian StandardSubstrate-AS1397

    Paint Coating-AS2728Category 3

    Colour-homogenouswith little colour

    change. Changes incolour to be based

    on E unit ofHunterlab count.

    Zinc Titanium*

    - Quartz Zinc

    - Quartz Zinc Plus

    - Bi-lacquered

    0.70.8

    0.70.80.70.80.70.8

    410410

    510510410410510510

    Stainless Steel European

    Standard EN988

    6.127.00

    5.916.756.257.126.036.87

    Uniform andhomogenouspatina in light

    matt grey colour

    Copper*

    - Green Patina 0.60.70.60.7

    410410510510

    6.537.626.187.22

    Stainless Steel or

    Copper / Brass

    European

    Standard EN1172

    Natural greenpatina colour

    ranges from softgreen to seagreen. Patinagreen mature

    overtime.

    Panel cover widths are meant for non-cyclonic area

    For cyclonic area and high wind conditions, panel cover width will be congured separately.

    Please contact BlueScope Lysaght Sales Ofce for design details.

    * Available in Singapore onlyAS- Australia Standard

    EN- European Standard

    4. Tapered sheets

    5. Tapered curved sheets

    LYSAGHT LOCKED SEAM also offers multiple design options in:

    1. Straight sheets

    2. Straight sheets with optional stiffening rib in the pan

    3. Smooth curved sheets without crimped marks

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    LYSAGHT LOCKED SEAM

    Fastening Method of LYSAGHT

    LOCKED SEAM

    LYSAGHT LOCKED SEAM

    panel is designed to be suitable for

    fastening onto a solid substrate, a

    corrugated prole, structural

    decking or plywood. Concealed

    clips are integrated into thestanding seam rib.

    The anchorage and the method

    of fastening are crucial factors in

    the xing of the roof skin to the

    substructures. All forces arising from

    the wind pressure must be safely

    directed from the roof skin via all

    other building components into the

    anchorage. The suction forces

    applicable to a roof are inuenced

    by the roof shape as well as height

    and position of the building. Peaksuction will occur at the exposed

    roof edge and overhanging area.

    Fastening Method for High Wind &

    Cyclonic load

    LYSAGHT LOCKED SEAM can

    be designed and congured to

    withstand High Wind Pressure and

    Cyclonic load. The test has been

    carried out in accordance with:

    Structural Adequacy Test underStatic Pressure to ASTM E330 and

    Structural Adequacy Test under BD

    PNAP 106 Cyclic

    Tests and simulation were conducted

    in a specially designed prefabricated

    steel chamber that is HOKLAS

    (Hong Kong Laboratory Accreditation

    Scheme) Accredited.

    Reg. No. HOKLAS 110.

    Please contact BlueScope Lysaght

    for details on cover width, thicknessand design load application for

    LYSAGHT LOCKED SEAM panel.

    The design calculation and wind

    load analysis of the xing

    methodology has been specially

    designed by BlueScope Lysaght

    Australia Research & Development

    department and veried by the

    National University of Singapore,

    Department of Civil Engineering.

    ACOUSTIC ROOF SYSTEM

    As a result of laboratory measurement of airborne sound transmission loss of BlueScope Lysaght Acoustic Roof System,

    Spring Singapore (Acoustic Test Laboratory) had rated the roof system tested on October 10, 2002 as having a sound

    transmission class 51 (STC 51). The test was conducted in accordance with ASTM E90 97.

    LYSAGHT LOCKED SEAMprole as roof cladding

    Concealed Clips

    1.5mm thick Galvanised Zed Subgirt

    @ 600mm c/c

    1.5mm thick self adhesive bitumen felt

    1 layer of 50mm thick rockwool insulation

    (density 80kg/m2)

    LYSAGHT TRIMDEK or LYSAGHT

    SPANDEX 0.47mm TCT. in

    ZINCALUME steel as roof substrate.

    PURLIN@ 1200mm c/c by main Contractor1 layer of 16mm thick Cemboard(by others)

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    Material Fact Sheet

    OPTION FOR PRE-PAINTED STEEL (Choose whichever applicable)Coated sheet shall be factory coiled painted and oven-baked to AS2728(Prepainted organic lm/ metal laminate products)

    a) Clean COLORBOND Steel:Recommended for benign exposure in marine environment (>1000m from breaking surf)

    Top coat : Custom formulated polyester paint system of 20m over 5muniversal corrosion inhibitive epoxy primer

    Reverse coat : Custom formulated Shadow Grey. Wash coat of 5m over 5m ofcorrosion inhibitive epoxy primer

    b) Clean COLORBOND XPD SteelRecommended for benign exposure in marine environment (>1000m from breaking surf)

    Top coat : PVF2of 20m over 5m corrosion inhibitive epoxy primerReverse coat : Snowgum Green wash coat of 5m over 5m of corrosion

    inhibitive epoxy primer

    c) Clean COLORBOND XPD Pearlescent SteelRecommended for benign exposure in marine environment (>1000m from breaking surf)Top coat : PVF2of 20m over 5m corrosion inhibitive epoxy primerReverse coat : Snowgum Green wash coat of 5m over 5m of corrosion

    inhibitive epoxy primer

    d) Clean COLORBOND Ultra SteelRecommended for severe marine environment (100m - 200m from breaking surf,

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    Quartz Zinc is pre-weathered zinc

    whose light grey colour is similar to

    that of the light grey of natural patina

    upon installation. Quartz Zinc offers a

    uniform and homogenous patina and

    colour from the moment of fabrication.

    Its patina remains absolutely stable

    over time and is perfectly environmentally

    friendly.

    This unique process of pre-weathering

    on Zinc leads to a more uniform

    appearance and gives the roof and

    the cladding the gloss and colour of

    the natural patina of natural Zinc from

    the moment it is installed.

    China Technical College - Zinc Titanium,Singapore

    Kranji Racecourse - Stainless Steel, Singapore

    OIL CANNING

    Whether a metal will appear at or

    not depends on the distribution of

    the stresses across its surface. These

    stresses will change as temperature

    changes. The ability of a metal to

    transfer the effect of these stresses

    across the surface without buckling or

    distorting out of plan, will determine

    the level of oil canning that will

    occur.

    Oil canning is a metaphorical term

    used to describe the tendency of at

    surfaces to show variations in

    reectivity. For example, a curved

    mirror will show a stretched and

    distorted image of a person standing

    in front of it. So too will a metal

    surface distort the reection of light if

    minor variations in and out of a levelplane exist. The appearance of atness

    is very much dependent on surface

    reectivity. It is also caused by mill

    tolerances, variations in the substrate/

    decking and purlin alignment. Some

    paint nishes and metals that have

    high gloss index will exhibit highly

    apparent distortion. The visual effects

    of oil canning can be exacerbated by

    different light conditions and

    orientation. Darker colours visually

    accentuate oil canning to a greater

    extent than the lighter, more neutralcolours.

    There are several precautions that can

    be taken to reduce the oil canning

    effect. One is to use thicker material,

    because thicker metal tends to oil-can

    less than thinner metal. An alternative

    is to specify for LYSAGHT LOCKED

    SEAM trays with stiffening ribs in the

    pan of the panels.

    Oil canning is an inherent characteristic

    and not a defect of a standing seamprole. It is therefore not a cause for

    panel rejection.

    3. ZINC TITANIUM

    Zinc titanium is a metal consisting

    of Pure Zinc (99.99%) alloyed with

    a small quantity of titanium and

    copper. It corresponds to the Z1

    classication that is the highest

    quality of Zinc titanium in the

    European Standard EN1179

    Zinc Titanium is produced to conform

    to European Norms EN 988 and

    EN1179. EN1179: regulates the

    classication of the alloy elements.

    EN988: controls the nishes and

    tolerances of the rolled products.

    The metallic zinc surfaces react with

    the main constituents of the

    atmosphere like oxygen, carbon

    dioxide and hydrogen to build a

    supercial patina. This layer is

    compact, adherent and insoluble inrainwater and will hinder any further

    exchange between oxygen and zinc

    thereby maintaining a very low

    corrosion rate of rolled zinc.

    The buildup of natural zinc patina

    takes time and environmental

    conditions.

    VM Zinc has developed a chemical

    process by which the external surface

    of the natural zinc can be modied

    in chemical bath: the pre-weather-

    ing process is carried out on naturalzinc as per NFA55-201, NFA55-211,

    DIN17770 or BS6561 and is therefore

    neither a paint or a coating resulting

    from any colour coating, spraying or

    brush painting process.

    The factory controlled pre-weathered

    surface is similar to the patina formed

    by natural zinc after a few years of

    ex-posure to the atmosphere.

    The name given to this pre-weathered

    zinc is called: Quartz Zinc.

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    Esplanade theatres by the Bay - Zinc Titanium, Singapore

    Project Reference for LOCKED SEAM

    Woodleigh MRT - Zinc Titanium, Singapore

    Wong Tai Sin Temple - Copper, Hong Kong

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    Copyright@2003by BlueScope Steel Limited. All rights reserved. No part

    of this brochure may be reproduced, stored in a retrieval system, or

    transmitted in any form or by any means, electronic, mechanical, recording

    or otherwise, without written permission from BlueScope Steel Limited.

    LYSAGHT & SELECT SEAM are registered trademark and LOCKED SEAM

    is a trademark of BlueScope Steel Limited ABN 16 000 011 058.

    BlueScope is a trademark of BlueScope Steel Limited.

    For Further Information, Kindly Contact

    BlueScope Steel Asia

    No.6, Persiaran Kemajuan,

    Seksyen 16, 40800 Shah Alam

    Tel: (603) 5519 2000

    Fax: (603) 5510 5484