The W4v is a further development of the W4, which has been tried and tested since the 1960s. The small-format roof tile, which is based on the style of the famous brick manufacturer Johann Wilhelm Ludowici (1896–1983), enjoys great popularity, especially in southern Germany. The special feature of the W4v is that it can be moved by up to 15 millimetres, which makes the brick interesting for renovations and new buildings . The small-format tile creates a beautiful cover pattern, especially on small house roofs.
