The client can choose between the so-called “cold” and “thermo” box
Because of the disruption of the thermo-bridge of the shutter box, high thermo-insulation is achieved
Good sound insulation
When installing, the construction of the window is not damaged, therefore its thermo-insulation is kept intact as well
Can be installed on newly-built buildings, as well as when changing already-existing window profiles on already-built buildings