Saving energy is closely related to environmental protection. But saving energy is also very closely related to cost savings. Thus, not only the environment is protected, but also your wallet. These two goals can be achieved simultaneously, on the one hand, through the use of highly effective thermal insulation glass, and on the other, with the most modern façade architecture. Functional glass serves several purposes at the same time, both for windows and for façades. Above all, insulating glass ensures optimum daylight and low heat loss, but it is also involved in passive solar energy production.