The new generation of ALU windows has gained outstanding features with numerous technological innovations. These ALU windows match the strictest energy saving regulations, can compare in insulation features to 5-chamber PVC profiles, and are appropriate for installation in low energy buildings (Uf=1,3). The innovative interrupted thermal bridge with a sponge and multi-chamber seal of large dimensions help meet the highest requirements of thermal protection with the coefficient of heat transfer through the profile of just Uf=1,6W/m2K. This system of ALU windows is suitable for installation in housing. Due to their solid insulation features, these windows are suitable for installation in housing and for the manufacture of elements with larger static requirements. Furthermore, they are compatible with other systems and they offer a wide variety of options of use. All aluminum building furniture is available in all RAL colors, spray colors and different wood imitations. Maintaining is simple and easy, mainly due to the very smooth surfaces and durability of the materials and colors.