Chamberness. The inner cavity of the window profile is filled with partitions that form chambers. The more cameras in the window profile, the less heat loss and better noise insulation.

The thickness of the partitions. The chambers located in the profile are separated by partitions. Partitions are divided into internal and external. The outer partitions are thicker than the inner ones. The thicker the partitions, the more expensive the window profile and the less heat loss.

The mounting depth (profile width) is the thickness of the profile in cross section. The thicker the profile, the less heat loss and better sound insulation.

The maximum thickness of the double-glazed window. This parameter determines how thick the double-glazed window can be installed in this window profile. The greater the installation depth, the greater the maximum thickness of the double-glazed window. The coefficient of resistance to heat transfer is the most important parameter, in fact, it takes into account all factors and shows how effective the window profile is. The higher this parameter, the better.