Ribs, broken ribs and wave patterns lend a building either lightness or solidity. They can pick up the existing lines of a structures part and give it additional contours. They enable straight-lined and esthetic pattern directions and can be realized chipped and broken, horizontally, vertically and diagonally. When applied to noise insulation walls, ribs and waves can enlarge the surface and combined with the correct concrete even contribute to higher noise absorption levels.