LCP CAPLOCK®

Metal Roof & Wall Cladding System

BUILDING PRODUCTS

Integrity In Partnership CERT NO. FM 59595

BS EN ISO 9001 : 2008
LCP CAPLOCK ®
FEATURE

LCP CAPLOCK® is an aesthetically pleasing architectural

metal roofing profile with slim looking battens and flat
pans running along the lengths of the roofing sheets.
LCP CAPLOCK® is ideally suited for both roof and
cladding applications. No fixing clips are visible and the
installation is simple.

AESTHETICALLY PLEASING & COST EFFECTIVE GOOD THERMAL & ACOUSTIC PROPERTIES

300mm or 500mm nominal cover width – ideal flat The improved clean COLORBOND® pre-painted
pan width steel and use of suitable insulation materials provide
energy efficient roofing systems.
Batten height of 27mm – provides slick looking
narrow ribs. When a steel roof is designed with an effective
acoustic system, it provides good sound insulation
Design flexibility – allowing curves. for the building.

Quick to install and easy handling – economical

choice. MATERIALS
Easy fixing – using specially designed concealed The strength and formability of steel makes it an ideal
clips material for roof and wall panels. LCP CAPLOCK® is a
cold roll formed roof and wall cladding manufactured
A variety of Clean COLORBOND® pre-painted steel from high strength steel of G300 base material (300MPa
offers excellent gloss and long lasting beauty. minimum yield stress), with ZINCALUME® steel (Zinc &
Aluminium alloy) coating, in accordance with AS 1397
and COLORBOND® pre-painted steel in accordance
GOOD STRUCTURAL CAPACITY with AS 2728.

COLORBOND® pre-painted steel shall achieve CLASS ‘0’

Lightweight and high strength steel substrate.
in accordance to BS 476 PART 6 & 7. The core material
ZINCALUME® shall be non-combustible in accordance
5 degrees minimum roof pitch (see Minimum Roof
to BS 476 PART 4.
Slope Table inside) – minimal support structures.
Also available in other materials and various finishes.
Design flexibility – long lengths possible. For further information, please contact LCP Building
Products Pte. Ltd.

ADVERSE CONDITIONS
If LCP Building Products Pte. Ltd. range of roofing, walling
or rainwater products are to be used within 1km of salt
marine or industrial and unusually corrosive environments,
please contact our Technical Department for advice.

01 LCP BUILDING PRODUCTS PTE. LTD.

 LCP CAPLOCK ®
ARCHITECTURAL SPECIFICATION
The roofing and/or wall cladding metal sheets shall be 0.55mm BMT. LCP CAPLOCK® produced by LCP Building Products
Pte. Ltd., with rib height of 21mm at 27mm batten height spaced at nominal 300mm or 500mm cover width. The sheets
shall be installed using concealed fixing clips in accordance to manufacturer’s recommendations. The fasteners used
to secure the fixing clips to the supports shall conform to Australian Standard AS 3566 and be compatible with the
roofing material used. The clips shall be concealed and no fasteners are to penetrate the cladding. The LCP CAPLOCK®
ribs must be mechanically seamed to complete the installation of the roof.

The sheeting material shall comply to Australian Standard AS 1397 with a minimum yield stress of 300MPa (Grade
G300), metallic hot-dip coated with aluminium/ zinc alloy comprising 55% aluminium, 43.5% zinc and 1.5% silicon. The
minimum coating mass for the aluminium/ zinc alloy coated steel shall be AZ 200 (200g/m2 minimum coating mass) as
determined by Australia Standard AS 1397.

Wherever applicable, the installation of the metal sheets shall be in accordance to the “Installation code for metal
roofing and wall cladding; Standard Australia SAA HB39-1997”.

A minimum of 50mm shall be provided for projection into gutters. Flashings shall be supplied in compatible materials,
as specified. Minimum cover of flashing shall be 150mm.

All sheeting shall be fixed in a workman like manner, leaving the job clean and weather-tight. All debris (nuts, screws,
cuttings, filings etc.) shall be cleaned off daily.

COLOUR COATING OPTIONS

Clean COLORBOND® pre-painted steel is resistant to dirt
pick up and staining. The various categories of Clean
COLORBOND® pre-painted steel finishes offer excellent
gloss and long lasting life span to the roof and wall
cladding.

The following Clean COLORBOND® pre-painted steel

finishes are available:

1. Clean COLORBOND® Ultra Steel (Used for severe

applications that require durability.)

2. Clean COLORBOND® XPD Steel (Used for moderate

/ severe applications that require premium
durability.)
FLASHING DETAIL
The profile of the LCP CAPLOCK® sheet needs to be
3. Clean COLORBOND® XPD Pearlescent Steel (Used taken into account when detailing the flashing.
for moderate / severe applications that require
premium durability and a decorative alternative.)

For appropriate coating option or other materials,

please contact LCP Building Products Pte. Ltd.

Ridge Capping Eaves Flashing

Apron Flashing High End Flashing

Valley Gutter Gable End Flashing

Typical common flashings used. Full range of flashing is
available.

LCP BUILDING PRODUCTS PTE. LTD. 02

LCP CAPLOCK ®
TYPICAL ROOF LCP CAPLOCK® CONCEALED
FIXING CLIPS @ 600mm C/C
LCP CAPLOCK® RIB BATTEN 0.61mm TCT COLORBOND®
LCP CAPLOCK® METAL ROOF
FIXING CLIP SCREW
Note: BUILDEX® 10-16x16 WAF DAMPENING LAYER (Optional)
For other types of roof build-up, COLORBOND® 75mm WIDE
FLAT BATTEN @ 600mm C/C 0.48mm TCT ZINCALUME®
please contact LCP Building LCP MULTIDECK® LINER
FLAT BATTEN FIXING SCREW
Products Pte. Ltd., Technical BUILDEX® 10-16x16 WAF 1 LAYER OF 50mm THK
Department. SELF-DRILLING HEX HEAD
GLASSWOOL OR ROCKWOOL
FULL THREAD WITH BONDED 1 LAYER OF ALUMINIUM FOIL
VAPOUR/RADIANT BARRIER
Applications requiring acoustic WASHER FASTENERS
1 LAYER OF ROOF MESH 3315
performance are also available LCP GALVANISED Zed/TOPHAT
SUB-GIRT
upon request.
LCP HIGH TENSILE GALVANISED
C/Z PURLIN (To Engr’s Detail)

TYPICAL LCP CAPLOCK® INSTALLATION DETAIL

Effective Cover Width = 300mm/500mm

27mm

21mm

LCP CAPLOCK® for ROOF and WALL SUPPORT BATTENS

The external roof system is available in 21mm rib height The battens are used as support for fastening the
with a 27mm high batten. The standard cover widths concealed clips. These support battens can either be
will either be 300mm or 500mm wide depending on a flat, Z-shape, or top hat section depending on the
application. Please contact LCP Building Products Pte. depth of the roof and application of the internal liner.
Ltd. for non-standard cover widths availability.
INTERNAL LINER STEEL DECK
PANEL FIXING CLIPS The internal liner steel deck is the structural component
that provides support and mounting surface for
The LCP CAPLOCK® uses specially designed concealed roof building materials. The deck will normally be a
fixing clips to securely fasten the flat pan metal roof to galvanised, ZINCALUME® steel (Zinc & Aluminium alloy)
the substrate below. The strength of the clip attachment or Clean COLORBOND® pre-painted trapezoidal profile
method and spacing are therefore coordinated with available at LCP Building Products Pte. Ltd. The internal
the panel size and structural characteristics to provide liner can also be a perforated product, which is used for
the necessary wind uplift resistance. sound absorption.

LCP MULTIDECK® Liner LCP LYCORRIB® 762 Liner

OPTIONS

Striations Pan Flute

03 LCP BUILDING PRODUCTS PTE. LTD.

 LCP CAPLOCK ®
INSTALLATION PROCEDURE FOOT TRAFFIC
Depending on the thickness and density of insulation, When walking on LCP CAPLOCK®, always wear clean,
there are 2 common system proposals. non-marking and flat rubber soled shoes. Avoid
unnecessary foot traffic and walk on the flat of the
If the insulation is not too dense, the Fibreglass insulation panel at or near the supporting roof structural members
shall be sandwiched in between purlins and supported as much as possible. Do not use the roof panel as a
by either wire mesh and reinforced vapour barrier. working platform.
LCP MULTIDECK® liner will be installed directly onto
purlins, with the flat batten strips fastened to the top of
the LCP MULTIDECK® liner. The dampening membrane is
LAPPING OF SHEET
placed on top of the LCP MULTIDECK® liner before the The minimum end lap should be 250mm. It is
concealed clips. Final roof sheets is secure to the system recommended that the laps be laid in a staggered
via the concealed clips. fashion on adjacent roof sheets so as to enhance
aesthetics. For other types of lapping, please contact
When Mineral Wools of higher density is required,
LCP Building Products Pte. Ltd. Technical Department.
LCP MULTIDECK® is used as a supporting decking for
the roofing system. Top Hat / Zed Sub-Girt must be
LCP CAPLOCK®
installed to serve as an insulation spacer before placing CAPPING 2 CUTTING LINE
the required insulation, radiant barrier/Aluminium foil LCP CAPLOCK® OF CAPPING 1
and dampening membrane. The concealed clips are CAPPING 1

then installed on Top Hat / Zed Sub-Girt directly before

securing the final roof sheets. LCP CAPLOCK®
CAPPING 2

FIXING REQUIREMENT
LCP CAPLOCK®
SHEET 2
In a completed installation, there are loads that will act LCP CAPLOCK®
CAPPING 1
on the panel parallel with any plane. This has the effect LCP CAPLOCK®
of pulling the panel down the slope of the roof. If the FLAT BATTEN SHEET 1
LCP MULTIDECK®
panel is not adequately fixed to the structure to prevent LCP CAPLOCK® LINER
such drag loads, it will creep down the plane of the roof. CONCEALED CLIP
Establishing the point of fixity depends on the roof type, LAPPING DETAIL
clip type and amount of movement. Please contact
LCP Building Products Pte. Ltd., Technical Department
for more details.
COMPATIBILITY
DESIGN EXAMPLE
Lead flashings should not be used in conjunction with
For a maximum 20° pitched roof, place at least 2 nos. ZINCALUME® steel or Clean COLORBOND® pre-painted
of Gauge 12 fasteners equally spaced in each pan at steel sheeting. Drainage from ZINCALUME® or Clean
the high-end ridge to take the drag force developed COLORBOND® pre-painted steel roofing (inert materials)
from a maximum 14.80m length roof with 0.75 kPa live should not be allowed to discharge onto galvanised
load. These fixings need to be placed behind the ridge rainwater components. Drainage from copper roofing
flashing. Please consult LCP Building Products Pte. Ltd., should not be allowed to discharge onto ZINCALUME®
Technical Department for other roof pitch, lengths and steel, galvanised, Clean COLORBOND® pre-painted
load configurations. steel or aluminium rainwater components. Each of
Note: For some curve roof applications such as barrel roofs, these combinations may lead to premature corrosion.
a special fixing may be required. Please consult LCP Building
Products Pte. Ltd., Technical Department, for further assistance.

LCP CAPLOCK® THERMAL and ACOUSTIC SYSTEM

ACOUSTIC and THERMAL REQUIREMENTS
LCP Building Products Pte. Ltd. can provide standard details for various Sound Transmission
Class (STC) and Impact Isolation Class (IIC), if required. The thermal resistance will vary
depending on the roof design and would have to be calculated by the designer, if
required. Please consult LCP Building Products Pte. Ltd., Technical Department, for
assistance with your roof design.

BUILD-UP FOR STC

0.61mm TCT LCP CAPLOCK®
(SOUND TRANSMISSION LCP CAPLOCK® CONCEALED CLIPS
METAL ROOFING
CLASS) 56, TESTED IN 1 LAYER OF 1.5mm THK BITUMEN FELT
1 LAYER OF 50mm THK
ACCORDANCE WITH 1.00mm THK GALV. 50mm Ht. Zed SUBGIRT ROCKWOOL, DENSITY 80kg/m3
ASTM E90 – 97 LCP 0.48mm TCT ZINCALUME®
LCP HIGH TENSILE GALV. Cee/Zed PURLIN LCP LYCORRIB® 762 LINER
1 LAYER OF ALUMINIUM FOIL
1 LAYER OF 12mm THK CEMENT BOARD
RADIANT/VAPOUR BARRIER

LCP BUILDING PRODUCTS PTE. LTD. 04

LCP CAPLOCK ®
TECHNICAL SPECIFICATION
PROPERTIES

LCP CAPLOCK® - Effective Cover Width Table

Effective Cover Width (mm) 300 500
Mass Per Unit Area (kg/m2) 6.15 5.53
The allowable tolerance shall be ± 4mm. For other cover widths availability, please contact LCP Building Products Pte.
Ltd., Technical Department.

PERFORMANCE

LCP CAPLOCK® Permissible Wind Load Table

Effective Cover Width Rib Height Clip Spacing Permissible Wind Load
500mm 27mm 600mm 2.5KPa
300mm 27mm 600mm 3.5KPa

Note: The LCP MULTIDECK® or LCP LYCORRIB® 762 will be used as liner beneath the LCP CAPLOCK® . The purlin spacing
is to be in accordance with the loading allowable in the LCP Building Products Pte. Ltd. Product Catalogue for either
LCPoMULTIDECK® or LCP LYCORRIB® 762 profiles.

For maximum purlin spacing, contact LCP Building Products Pte. Ltd., Technical Department.

THERMAL MOVEMENT

LCP CAPLOCK® Thermal Movement

(For COLORBOND® Steel)
Temperature Differential Thermal Movement for Every
Rib Height
(Degree Celsius) Metre Length of Roof
30 0.3mm
27mm 50 0.5mm
70 0.8mm

Please contact LCP Building Products Pte. Ltd., Technical Department for additional information on Thermal Movement
of other materials.

CURVED PANEL

Roof Pitch & Curving Characteristics

Minimum Radius Minimum Radius
Minimum Pitch (Convex Pre-Curve)
Rib Height (Convex Sprung
(Degrees)
Curve) Steel/Stainless Non-Ferrous Metal
27mm 5 10m 1500mm 300mm

The water carrying capacity of LCP CAPLOCK® roofing allows for a minimum slope of 5 degrees, subject to specific
design factors. It is imperative that this minimum slope is adhered to all points of the roof to prevent ponding from
occurring. If the roof slope is 7 to 5 degrees, a sealant to be installed over the male rib of the LCP CAPLOCK®. For more
information, please contact LCP Building Products Pte. Ltd., Technical Department.

LCP CAPLOCK® can be pre-curved in the factory prior to delivery to site or sprung curved on site during installation.

TAPERED SHEET: For concave sprung and pre-curve sheet requirements, please consult LCP Building Products Pte. Ltd.,
Technical Department.

05 LCP BUILDING PRODUCTS PTE. LTD.

 LCP CAPLOCK ®
PROJECT REFERENCES

Residence at Toh Crescent, Singapore Red Swastika School, Singapore

Tampines Market, Singapore

Woodlands Primary School, Singapore Glentrees Condominium, Singapore

Changi North, Singapore Marsiling Secondary School, Singapore

LCP BUILDING PRODUCTS PTE. LTD. 06

MANUFACTURING and CONSTRUCTION
ORDERING HANDLING
When ordering, please have the following information LCP CAPLOCK® (especially Clean COLORBOND®) should be
available to ensure a speedy processing of your requirements: handled with care at all times to preserve the quality of the
finish. Packs should always be kept dry and stored above
Customer/Company name, address, phone number & fax ground level whilst on site. If however the sheets have become
number. wet then they should be separated, wiped and placed in the
Contact person name & phone number. open to aid in drying.
Name of Product (e.g. LCP CAPLOCK®) and material (e.g.
G300 steel). Thickness of product (e.g. 0.61mm TCT). FASTENERS
Coating or Colour (e.g. Clean COLORBOND®: Enduring
White colour). All fasteners should conform to AS 3566 and be compatible
Number/quantity and sheet length (e.g. 10 pieces of 5 with the roofing material used. The fastener of the roof clip to
metres length per piece). support the standing seam is Buildex 10-16 × 16 WAF. The flat
Flashing – style, quantity and colour. shape of the screw head is very important, as a high head will
Delivery address (e.g. No. 10 Telok Kurau Lane, Singapore). puncture the flat pan of the roof sheet.
Delivery date & preferred time.
Site access (please specify whether current access to CUTTING
delivery location would permit entry by standard 12 metres
length flat-bed trailers). Sheeting can be cut, where necessary, by means of metal
Cranage requirement (please specify whether cranage snips or electric nibbler. The use of cutting discs should be
will be required at site). avoided but if it is used, the Clean COLORBOND® pre-painted
steel sheeting should be placed downwards, or carefully
LENGTH shielded, to minimize the risk of hot filings embedding in the
painted surface.
The sheets are manufactured at LCP Building Products Pte.
Ltd. factory or on construction site. The length of the sheet is CLEAN UP
a function of design requirements, geometry of the roof (i.e.
curving or other factors), site conditions and workability, height Ensure that all debris, nails, rivets, screws, rags, and especially
of the rib and transportation constraints. filings & particles from cutting or drilling, are carefully cleared
from the surface after each day’s work or premature corrosion
Lengths specified must be actual site measurements and not
could occur.
plan dimensions. The length should be measured accurately,
and allowance should be made for clearance at the ridge
(unless the sheet is continuous over the ridge) of normally
OIL CANNING
around 50mm. At the eaves, allowed overhang into the gutter As in all flat pan-roofing profiles, the flat surfaces of the metal
is not more than 50mm. Where a “step down” or expansion sheets may exhibit some degree of undulation known as “oil
joint is incorporated into the roof, an allowance of not less canning”. The extent and degree of oil canning will generally
than 300mm should be added. The tolerance of the length of depend on factors such as width of the flat pan, the radius
product supplied is +0, -15mm. of the curved roof, variations in level of the purlins or batten
supports, etc. Please note the oil canning is regarded as an
FLASHING inherent characteristic, not a defect of flat pan roofing profiles.
As such, oil canning of LCP CAPLOCK® , if present, shall not form
Standard flashings are readily available for use with the basis of product rejection by the end-user.
LCPoCAPLOCK® roofing. LCP Building Products Pte. Ltd. will
give design advice for flashing details and manufacture the
required flashing.
PAN FLUTE
The flat pan of the LCP CAPLOCK® can be strengthened by
DELIVERY the addition of either 1 or 2 flutes in the pan. The flute will help
reduce the oil canning, strengthen the pan if it is trafficked,
Delivery can normally be made within 2 or 3 days, subject and provide a linear feature in the panel. The positions can
to the delivery location and material availability, or can be be varied. By placing the flutes at the 1/3 point across the pan
at a pre-arranged date and time. Please assist us to provide you can get the best results. The minimum centre to centre of
undamaged product by ensuring that suitable arrangements the two flutes is 175mm and the minimum distance from each
have been made for truck unloading. When lifting sheeting by rib is 52mm. The width of the flute is 25mm and the height is
crane, care should be taken to ensure that the load is spread 1mm. For further information, please contact the LCP Building
to prevent sheeting damage. Where a crane is not available, Products Pte. Ltd., Technical Department.
sufficient labour must be supplied to assist in manual unloading.

IMPORTANT NOTE: The information published in this brochure is as far as possible accurate at the date of publication, however, prior to
application in a particular situation, LCP Building Products Pte. Ltd. recommends that you obtain qualified expert advice confirming
the suitability of product(s) in question for the application proposed. While LCP Building Products Pte. Ltd. accepts its legal obligations,
be aware however that to the extent permitted by law, LCP Building Products Pte. Ltd. disclaims all liability (including liability for
negligence) for all losses and damages resulting from the use of the information provided in this brochure.

LCP BUILDING PRODUCTS PTE. LTD. LCP BUILDING PRODUCTS PVT. LTD. Photographs of the premises displayed in
CO. No. 200009173 C (CO. No. U28112 TN2004 PTC053236) this Brochure are not to be construed as an
endorsement or recommendation by the owners
No. 6 Gul Circle, Singapore 629562 Old No.6, New No.17, 4th Floor, of the premises to LCP and its products.
Viswanathapuram Main Road, LCP CAPLOCK® Brochure 05/18 ©2018 LCP
BUILDING PRODUCTS
Tel: (65) 6865-1550 Fax: (65) 6861-4218 Kodambakkam, Chennai – 600 024, India Building Products Pte. Ltd. All rights reserved.
Email: lcp@lcp.sg website: www.lcp.sg
LCP CAPLOCK® Brochure 05.2018 edition.
Tel: + 91-44 -298 92772
Fax: + 91-44 -298 92772 ZINCALUME®, COLORBOND® and Clean COLORBOND®
Email: lcpindia@lcpgroup.asia are registered trademarks of BLUESCOPE STEEL LIMITED
website: www.lcpindia.com
A member of LCP Group of Companies