Entrance doors quite rightly determine the style of a house or a building. They fulfil a representative role, and at the same time, must take care of the safety of residents. The aspect, which is not irrelevant, includes thermal insulation. Thanks to different series of profiles, such as Schüco ADS 112 IC, the entrance doors, which meet the requirements for passive houses, are available. Another advantage involves a thermally insulated threshold protecting from bad weather.