The classic Nelskamp concrete roof tile is the Finkenberg Tile. Nelskamp began series production of roof tiles in 1953 with this product. Its form has remained almost unchanged until today. Progress has been made in terms of colours, surfaces and functions. Thanks to its sophisticated interlocking profile it prevents rain, snow or dust from entering the roof and makes it especially storm-proof.
Since 2007 the Finkenberg Tile has been "environmentally active" as the surface ClimaLife removes pollutants from the air. It contains titanium dioxide and converts, for example, nitric oxide into harmless nitrate. This continues for the life of the roof as titanium dioxide is a catalyst. The next rain simply washes the nitrate from the roof.