Smartia S77 system is Alumil's latest proposal for advanced insulating hinged systems which meets the high standards of private and public buildings in Western Europe, combining the demanding levels of thermal insulation, waterightness and sound insulation.The system includes a wide range of profiles with modern flat shape, as well as with Alumil’s characteristic curved shape. Furthermore, it provides the choice of using concealed sash and concealed fittings for windows and doors and also, of making constructions with totally aligned sash and frame profiles internally and externally for the entrance doors. It is the ideal solution for any kind of constructions that require strict standards for high performance and maximum safety.