– is intended to reconcile the different scales of the adjacent Market Conservation Area on one side and broader scale Church Way on the other. Two distinct blocks follow the existing road lines and are linked by a prow-like corner, which helps to unite the two geometries and

creates a distinctive and recognizable feature. A key element of the Doncaster hotel’s design is the use of pre-patinated copper to create an abstract surface made up of horizontally orientated bands of varying heights. Three different intensities – ranging from solid green to a special finish – were developed to meet the architect’s requirements. The different finishes were then used in random combinations, adding richness to the flat façades. Another exciting development for copper as a modern

architectural material for façades is the introduction of an alloy with a striking warm golden surface. This alloy of copper with aluminium and zinc is very stable and keeps its golden shade over time. It behaves differently to pure copper, with a thin protective oxide layer containing all three alloy elements when produced. As a result, the surface retains its golden colour indefinitely and simply loses some of its sheen as the oxide layer thickens with exposure to the elements. This has been demonstrated with accelerated weathering tests. As well as exuding a sense of visual richness and quality, the golden alloy offers outstanding mechanical abrasion resistance, extremely high corrosion resistance and durability, as well as excellent stability and material rigidity. The material can be easily cold-shaped and processed using standard techniques.

Golden Tears

Preformed trays of the golden alloy have been used to wrap the

roof, sides and underside of Freya’s Cabin – one of two allegorical visitors’ shelters overlooking Kielder Water, northern Europe’s largest man-made lake. The design is inspired by a fairytale that was created by its designers, Studio Weave. The copper alloy sheets were perforated to symbolise the golden tears of Freya, who cried gold when she thought that her lover Robin had spurned her. Fortunately, the story does have a happy ending with the lovers united!

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