The Double Facade of the Cube in Berlin

The Cube Berlin, designed by Danish architects 3XN, is characterised by a fully glazed, ventilated double facade. All sides reflect the surroundings and change their appearance depending on the viewing angle, weather and time of day. Under the glass outer skin, which wraps the building in a series of triangles, there is a stepped thermal insulation facade. Openings ­arranged on all four sides of the outer skin and on several floors provide access to the inside. To prevent the space between the facades from overheating, the architects used ­solar-control coatings and ­solar-absorbing PVB films for the outer skin. ­A structurally-­effective intermediate layer that is compatible with the solar-­absorbing PVB film had to be added to the facade glass. This solution was developed from scratch to increase edge stability while reducing the risk ­of delamination and the yellowing index. In addition to the coated glass products, the Guardian Glass project team also provided advice during the design process.

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