By replacing old patio doors which are no longer up-to-date technically by modern high-quality patio door systems with considerably improved insulation properties, you will benefit from a simple and efficient way of energy saving and also reduce heating costs naturally. Nowadays, highly effective insulating glass or heat protection glass is used in window manufacturing. It can achieve a heat transition coefficient of up to Ug = 0,4 W/m²K. Of course, insulating and caulking the whole building envelope also represents a significant supporting factor for energy saving. This way, you will not only save money, but also contribute to the protection of the climate and the environment which gets more and more important these days. At the same time, the value of the entire property / real estate is raised. On windows24.com, you can find double glazing with a thermal transition coefficient of Ug 1,1 W/qm2 or 1,0 W/qm2. Triple glazing systems are available at Ug 0,7 W/qm2 and Ug 0,6 W/qmK. As a general rule, the smaller the Ug value is, the better the heat insulating properties of the glass panel.