In particular the blue glass façade of the Wellcome Wing called for intelligent design combined with expert technical skill. It was essential to cut down the daylight without making the exhibits appear blue, while also retaining the transparency of the glass.
A range of tests were conducted to find the right glass laminate, which could guarantee that the exhibits would not be at risk from exposure to sunlight.
The test phase lasted almost three years, until finally the optimum solution was found. The product chosen was an insulating glass made by the German firm Okalux of Marktheidenfeld. This comprises one pane of clear float glass, an 8 mm thick pane of blue “Imera” colored glass by SCHOTT Spezialglas AG, Standort Grünenplan, and a special reflective louvre system in the air space between the two panes of glass. This solution meets both the design requirements – the light throughout the whole space is very soft and diffused – and it has also proved to be extremely energy-efficient. Optimum control of the daylight by the louvre system saves on heating and lighting costs.
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