Overlap is an innovative sectional door with an original opening system that doesn’t require any ceiling rails thus reducing the internal encumbrance by half. Using Overlap there’s the best space usage inside the garage and the light passing through, both in height and in width, is optimized. With the gate open, the passage height is of only 200 mm lower than the height of the ceiling. The standard construction of the Overlap sectional gate uses the Silvelox Combimatic engine incorporated in the upper crosspiece of the fixed perimeter frame with masonry. This system actuates the movement of the gate through the rotation of the gear of the counterweights and do not need any visible and encumbrant motrization device. It’s allowed to park your car right under the gate both internally and externally and it’s ideal for shallow or street facing garages. The Overlap sectional door has a mechanical unified for each type of wall opening and also easily adapts to different situations of restructuring of any type of buildings. It lends itself to be used in special situations of indoor environments characterized by the presence of tilted ceilings, with lowered beams and side walls with narrow radius of curvature, as well as oblique.