KBE offers a combined system with 88 mm installation depth, including residential door variants. This can be upgraded with an optional centre seal to a high quality centre seal system.
Window & residential door systems : 88 mm systems
A double seal system is generally understood to be a window system with two sealing levels. The window is sealed with an outer and an inner sealing level at the extended leg.
In the centre seal system, the outer, and hence more important sealing level is in the middle of the profile. KBE normally offers the centre seal systems with only three seals, for a further enhancement of thermal insulation properties.
In addition to balcony, terrace, and parallel sliding/tilting doors, KBE also offers extremely stable inward and outward opening residential doors. This section presents these residential doors in all their variants.