A system of aluminum sections with a thermal break designed for external applications. It allows you to build doors and windows with the characteristic appearance of wooden windows in a retro style. Three-chamber profiles with a retro style depth. Three-chamber profiles with a frame depth of 81 mm, the patented Spidertechnology® insulator system and numerous insulation elements ensure high thermal insulation. Proven in the construction of external partitions in new buildings and in the renovation of existing buildings requiring high aesthetics of joinery in a classic retro style.