The large-scale use of the material of glass in facade design will also remain the trend in future. Not only because glass facades provide a maximum of light, but also because they make buildings appear more representative. However, the high amount of glass also causes the problem of overheating, so that a transparent facade cannot do without an appropriate sun protection system. If you plan to work with glass, you must thus make sure that it is equipped with additional functions for shading and air conditioning. The climate protection goals of the EU countries allow fewer and fewer emissions. Multifunctional glass facades can come up with solutions. Up to now, these are not standard; however, science and research are paying ever more attention to them. Experience the current “state of the art“ at glasstec, also when it concerns the future of multifunctional, high quality insulating glass. Are windows with quadruple insulating glass a step in the right direction?