PRODUCTS:
CGL Copper Rainscreen System
Utilising Prepatinated Copper

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CGL's standard copper ventilated facade, this system incorporates the CGL CS3 support system and 1.5mm thick copper cassette panels. The system features are -

• Excellent panel flatness
• Modular shadow joints
• High quality oxidized copper finish (blue/green patination)
  
• Full system warranty
  
• Zero maintenance requirements and self healing
  
• Natural variegated appearance

Case Study

Project: Green Park, Reading
Architect: Scott Brownrigg
Installer: McMullen Architectural Systems Limited

This development features 6000m2 of prepatinated copper incorporated into the CGL Copper Rainscreen System. The panels are 3000mm x 600mm landscape format and exhibit a natural variety of shading which would take many years to achieve through natural weathering. This "natural" metal is maintenance-free and will continue to consistently patinate over the years ( a life span in excess of 60 years will apply)

CGL Copper Rainscreen System

GENERAL DESCRIPTION
The system comprises prepatinated copper panels which are secret fixed to the Cometec CS3 extruded aluminium hanging system. The system is designed to avoid bi-metallic corrosion, a dangerous possibility when copper and aluminium are used together. Being a rainscreen system, this facade is ventilated and requires to be hung from a structural internal wall which is air-impermeable, insulated, and acoustically satisfactory. The cavity between the backing wall and rainscreen is pressure equalised and thus inhibits the ingress of driven rain and also allows any penetrating moisture to dry out naturally. All CGL systems are independently tested and are compliant with the 'Standard for Ventilated Facades' as produced by the Centre for Window and Cladding Technology at Bath University.

PREPATINATED COPPER
Copper sheeting is a structurally- strong sheeting in 1.5mm thickness. The material is prepatinated in a unique factory process and thus gives quality control over thickness and oxidisation of finish. Individual sheets display a variegated 'natural' finish which ranges from blue/green to yellow/green CGL has developed extensive expertise in fabricating cassettes , cappings, curved details, and louvres from this material and takes full responsibility for designing the structural attachment and stiffening of the panels. Particle wash-off from copper can quickly corrode aluminium. CGL system design ensures that such corrosion cannot occur.

CGL CS3 SUPPORT SYSTEM
Rainscreen support system technology under the CGL brand gives the installer total flexibility to produce a flat, modular facade to exceptional tolerances. Essentially a vertical rail system with wall brackets, the design detail built into the extrusions and tension cam connectors is unequalled in this market. All materials are aluminium, stainless steel, and neoprene compression gaskets.

MAINTENANCE
Generally, metal facades should be washed down annually with clean water, a neutral cleaning agent, and a soft applicator. Copper, however, requires no maintenance to protect or enhance its appearance or performance.

WARRANTY
CGL Systems offers warranty over system design and performance for varying periods dependent on location and material used, covering replacement of defective product.

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