Construction in the village of Krotoszyn. The investor decided to install the window joinery warm, where elements of the Frame system were used. The system has been adapted to the investor’s needs by a team of installers. The unusual set consists of a double Thermo-BEAM and a Thermo-FRAME. One of the thermo-belts, 24 cm deep, the other, 20 cm deep. A warm window sill will be installed during the installation of windows.