Cladding
Architectural Envelope Experts
Table of Contents Company Introduction Mission
2-3 4
Products
5-7
Manufacture of ACP
8-9
Mechanical Properties
10-11
Composite Cladding
12-13
SCM Section Detail
14-15
Fixing Method
16-17
Installation Methods
18-19
Quality and Reliability
20-21
Cladding Interior
22
Cladding Workflow
23
Cladding Machinery
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COMPANY INTRODUCTION Cladtech International is the region’s leading building envelope specialist. Backed by Al Rajhi Holding, a distinguished building solutions firm, we strive to provide our clients with comprehensive answers to their needs. Our vertically integrated business structure, including design, development and processing capabilities, allows us to meet all your construction requirements. The Aluminium, Metals, Cladding and Glass divisions offer a full range of services including the very best in customer care. No project is beyond our capacity and we can respond to any challenge. The company’s skilled craftsmen are capable of producing more than 600 bespoke, unitised wall panels per day to the highest standard of quality. Using the latest technologies and techniques, they ensure that Cladtech products continue to enjoy a reputation for excellence. Line managers and quality control officials carefully check every step of the production process, making certain your products arrive in perfect condition. Installation professionals are available to assemble them into a customised whole. Expert teams of engineers and consultants can enhance your project with unique integrated solutions through value assessments and site management. Competitive pricing and built-in cost savings will ensure the success of your venture in both the short and long term. Cladtech. We are the solution.
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COMPANY DESCRIPTION by Others Division to support it’s primary activity as a fabrication of high performance aluminium façades. The Cladding Division employs the most modern and advanced CNC machinery including cutting equipment and roll bending together with all other important facilities for the fabrication of composite cladding panels. CTI’s Cladding Division is staffed by a team operators, supervisors and managers with a strong background in all the engineering aspects of the production of high quality composite and noncomposite cladding panels. CTI follows current internationals standards to achieve the required high quality and performance sets by modern architectural design.
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OUR MISSION
To strive at the highest level to achieve • • • •
Craftsmanship Durability Beauty Value-for-Money
on behalf of our customers
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PRODUCTS Cladtech International source their requirements for composite panels from a variety of highly reputable international suppliers and are thus able to meet architectural and engineering specifications at every level of cost and performance. Aluminium composite panels are a superior alternative to solid aluminium sheets and offer a superb combination of light weight, rigidity, flatness, attractive appearance and durability. Aluminium composite panels are available in non Fire-rated and full fire-rated grades.
MATERIAL SPECIFICATION OF ACP Non fire-rated composite cladding consists of a layer of thermoplastic low density expanded polyethylene sandwiched between two 0.5mm aluminium sheets fire-rated composite cladding consists of a non-combustible light weight mineral-based layer again contained in a sandwich of two sheets of 0.5mm aluminium sheets. Composite panels are therefore frequently known as “sandwich panels”
AVAILABILITY – Composite cladding panels are available in 3, 4 and 6mm thickness. – Composite cladding panels are available in PVDF-Based paint system or Lumiflon-based paint system – Composite cladding panels can be supplied with an additional service coating on the rear face to protect the aluminium surface from possible corrosion in areas of poor ventilation. – Composite cladding sheets are delivered to site, and installed, with a “Low-tack” protection film which is removed on handover of the works.
Composition of ACP Cross-section of ACP
PVDF / Lumiflon - based fluorocarbon coated Aluminum 0.5mm
Polyethylene or non-combustible mineral filled core
Aluminum 0.5mm Wash coating or service coating Total thickness: 3.4 and 6mm
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PRODUCTS COMPOSITION
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COMPOSITE PANELS MANUFACTURING PROCESS The manufacturing process involves two primary procedures
COLOUR RANGE OF ACP Aluminium composite sheets are available in a wide range of standard and non-standard colours including-
namely: – COIL Coating is a mass-production process in which
– solid (enamel) colour
fluorocarbon paint is applied to the continuous aluminium
– metallic
sheet which is coiled in readiness for use in the composite
– sparkling
panels.
– stone
– LAMINATION is a process in which the expanded low
– timber
density polyethylene or mineral core is laminated under
which are adequate to meet the most demanding aesthetic
heat and pressure between the two coated coils, thus
requirements of architect and property owners.
forming the finished ACP product, which is now ready for delivery, in sheet form, to end-user.
FEATURES OF ACP – light weight – flatness – rigidity – workability – wide variety of colours – uniformity of colour
❶ Top Coating ❷ Primer ❹ Pretreatment layer ❺ Aluminum skin ❹ Pretreatment layer ❻ Corrosion resistant primer
❼ Polyethylene or non-combustible mineral filled core
❻ Corrosion resistant primer ❹ Pretreatment layer ❺ Aluminum skin ❹ Pretreatment layer ❽ Wash coating or service coating
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PRODUCT RANGE
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MECHANICAL PROPERTIES
APPLICATION
Differential expansion and contraction of ACP is similar to solid
ACP has becomes established as one of the most cost-effective
aluminium sheets and is accommodated by using aluminium
materials for the cladding of opaque areas in the structure
fixing systems and accessories during installation.
of modern buildings. It is also a frequent choice of infill for
Since steel and concrete have somewhat lower coefficient of
spandrel areas of typical aluminium curtain wall. The versatility
linear expansion compared to ACP, this differential movement
and aesthetics of ACP assure it of a secure and long-lasting
is accommodation through provision of slotted holes in the
future in contemporary architectural design, inter alia-
fixing brackets. Due to the typical folded edge-detail of ACP, it is not easy to seal the external joints with pre-formed gaskets.
– Commercial and residential Towers
Therefore, joint-sealing is generally done with structural silicone.
– Industrial buildings
However, open joints and gasket joints are available from CTI
– Airports
and are explained in the following pages of this brochure.
– Educational buildings – Hotels – Medical buildings – Signage Applications.
ELONGATION SHRINKAGE (mm/meter)
80
4.0
70
3.5
60
3.0
50
2.5
40
( 50 ºC )
( 1 x 10-6 ºC )
LINEAR THERMAL EXPANSION COEFFICIENT
2.0
30
1.5
20
1.0
10
0.5 0
0 Acrylic Sheet
Glass Concrete Stainless Steel (304) Steel Aluminum ACP
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COMPOSITE CLADDING The range of composite cladding is comprised mainly of three types: – Titanium composite materials (TCM) – Stainless Steel composite material (SCM) – Zinc and copper composite material ( ZCM/CCM)
TCM SECTION DETAIL
Cross-section of TCM
Titanium 0.3mm
Non-combustible mineral filled core 3.4mm
Stainless steel 0.3mm Total thickness: 4mm
Overall thickness: 4 mm Titanium Composite Material is widely-used in the construction industry on account of it’s superior resistance to corrosion even in the most aggressive environments. TCM is a composite sandwich panel as indicated in the above sectional detail and in available in a subdued matt finished. CTI employs specialised cutting and grooving technology especially suited to the machining and fabrication of TCM composite cladding panels
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SCM SECTION DETAIL
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Stainless Steel Composite material is a high-quality architectural finish for external as well as internal applications and is available in a range of decorative treatments including hairline finish, matt finish and mirror finish. SCM is supplied with top quality metallurgical stainless steel alloy and is highly favoured by designers for its good appearance, low maintenance and durability in all environments CTI employs the same production techniques to manufacture SCM panels, as those of TCM.
Cross-section of ZCM
Zinc alloy 0.4mm
Non-combustible mineral filled core 3.2mm
Zinc/Aluminum alloy 0.4mm Total thickness: 4mm
Cross-section of ZCM Z-A
Zinc alloy 0.4mm
Non-combustible mineral filled core 3.1mm
Aluminum alloy 0.5mm Total thickness: 4mm
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FIXING METHOD FABRICATION PROCESS Ease of fabrication is a major benefit of a types of composite panel, especially those with one, or both, faces in aluminum. The panels are cut and grooved by CTI using purpose made CNC machinery in our well-equipped factory. CNC control from drawing board to factory-floor ensures a high degree of precision in the tolerances of the finished panels. These CNC automated machines are capable of extremely high output to meet the requirements of any fast-track project. From the following diagrams the forming process starts with cutting of a U-groove along the bending axis ( 1 ). A folding jig is then used to bend the panel along the line of the groove (2). Prior to bending, the corners are mitred to ensure a perfectly smooth 45ยบ joint (3). Where composite panels require to be curved, this is done on a 3-roll bender which can be accurately set up to provide curved panels of exact design-radius (4).
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INSTALLATION METHODS
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INSTALLATION METHODS 1. WET SEALANT JOINT METHOD This method is widely used in a large variety of cladding applications. The panels are folded at the edges to form a tray-configuration. Following mechanical attachment to the sub-structure, the joints are filled with an expanded polyethylene backer-rod to support the correct thickness of the structural silicone weather-seal.
2. HANGING METHOD This is also a popular fixing method which allows for easy and quick installation. The joints are interlocking and there is no need for external weathering sealant. The open joints are self-draining and the system can accomodate differential movement in the sub-structure.
3. NARROW OPEN JOINT METHOD This method is recommended for fixing of stone or timber patterned panels since the narrow joint presents a more aesthetic appearance. Joints can be sealed with structural silicone or with EPDM gaskets.
4. ROOFING APPLICATION Aluminum composite panels are extensively used to clad the roofs of airports, stadiums and commercial buildings where it is necessary to combine elegance and durability. The ACP panels are typically laid on an underlying extruded aluminum mullion which is usually self-draining, although the folded edges of the panels are sealed with structural silicone.
5. CURTAINWALL SPANDREL AREAS Folded, or flat aluminum panels containing a bonded insulation material (eg. expanded polyethylene) are generally required to be installed in the space between the glazed spandrel and the edge of the concrete slab. The outer face of the aluminum sheet is usually painted with a dark polyester powder coat finish to ensure that there is no risk of "ReadThrough" of the back-pan when viewed from the exterior.
6. SUN SHADES AND CANOPIES Aluminum composite panels can shaped to fit a wide variety of canopy-configurations giving a smooth, permanent and aesthetically-pleasing finish from all angles.
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QUALITY AND RELIABILITY
Cladtech International QA / QC Department undertakes detailed inspection of work-in-progress at each stage of fabrication through to final packing and dispatch to customer or to CTI projects site. CTI provides a 10-year standard product warranty for all metal compositen panels.
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CLADDING INTERIOR
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CLADDING WORKFLOW
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CLADDING MACHINERY
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www.cladtech-int.com
UAE : Tel.: +971 7 244 61 14 Fax: +971 7 244 61 12 P.O. Box 6674 Ras Al Khaimah, UAE
KSA : Tel.: +966 (1) 219 05 66 Fax: +966 (1) 293 57 52 P.O. Box 18927 Riyadh, KSA