Window lintel, socket and guide for a roller shutter

摘要

The lintel has a gap for receiving a part of a rolling shutter box (6), where the box is set before a window in an embrasure. The gap containing a part of the lintel is formed by a shaped part (11), which is made of plastic e.g. polystyrene. The shaped part has a recess filled with concrete or other building material. A vertical side piece facing a wall outer side (2) is longer than another vertical side piece.