Construction element in lintel form for windows and doors with front face roller shutter has angled recess with protruding flange on vertical and/or horizontal face and with cross sectional reduction as design break point

摘要

The construction element in lintel form for windows and doors has an angled recess (4) with a protruding flange (7) on the vertical and/or horizontal face (5,6). The flange has a cross sectional reduction as a design break point. The height or width of the flange corresponds to the diameter difference of a front face roller shutter (3) for a window (2) or a door, and is especially 2-4 cm. The width of the construction element may correspond to half the wall thickness or to the whole wall thickness, and is especially 36 cm.