THE FAÇADE The distinctive identity of the building , however , is most emphatically defined by its shimmering façade , which is essentially an artwork in its own right : a complex unitised design of individually machined metallic materials and glass surfaces etched with a powerfully symbolic design . The envelope becomes a canvas for a large-scale image that wraps around the building ’ s elevations .
While the glint of the metallic finish makes reference to the mineral wealth beneath the soil , its copper and golden colour is drawn primarily from the rich ochre tones of the soil that is endemic to many parts of the country . The highveld ’ s golden sunsets after its famous summer thunderstorms introduce an atmospheric dimension to its range of potential associations . The façade ’ s shimmering finish enhances the effect of the building ’ s fluid lines , adding dynamism and constant variance to its appearance , constantly refreshing its appeal .