Dominique Perrault, Bibliothèque François-Mitterrand, Paris

Glass alone does not guarantee an adequate level of thermal comfort of the interior space. It did not do so a hundred years ago, when the purist composition of the Modern Movement scorned centuries of experience in filter design by imposing the schematic pan de verre. But neither does it do so today when glass has substantially improved its capacity for solar control and thermal protection, but without approaching the demands that energy saving imposes on us. And all this with increasingly unaffordable and less profitable cost increases... [+]