Self-supporting, Curved Glass Roof by Schollglas
The gently curved roof appears to lie on the building like a light cloth. In reality, however, the steel structure weighs 500 tonnes and spans the two-storey passages partly as a dome and partly as a vault. Daylight, thermal insulation and solar protection are provided by 2,670 Gewe-therm 4SG insulating panes with external solar protection from Schollglas. None of the trapezoidal or triangular panes is like the other. The glass panes, which were produced flat, were installed with slight tension in the curved profiles using the installation bending method.