Concrete roof tiles

An innovative building material

Nelskamp has been producing concrete roof tiles since 1953. They are made using quartz sand, cement, water and colour pigments. The first model – the "Finkenberg Tile" – is still in popular use in Germany. Four further concrete roof tile models are also available for individual roof architecture: S-Tile, Planum concrete tile, Crown Tile and Sigma Tile.

Necessity is the mother of invention

During the period of reconstruction after the Second World War there was a great lack of building materials. The availability of clay roof tiles, for example, was far too low to cover the demand. It was only when modern concrete roof tiles started to be produced that this demand could be met, since all the natural materials needed for their manufacture were readily available. Furthermore, production of these tiles requires little energy as no kiln is required. So concrete tiles became a popular roofing material.

Top-quality roofs are almost completely self-cleaning

Nelskamp research continued to develop this building material: in 2001 the especially smooth low-pore surface "Longlife" was added to the portfolio. Lichens, mosses and algae are hardly able to grow on this smooth surface. Rain simply washes any dirt away – so the roof tiles always remain clean, as if they had been freshly installed. Since 2013 this even includes a low-pore visible front edge to the tiles.

The surface "ClimaLife" continues the technical development of the concrete roof tile. These roof tiles actively break down pollutants in the air. The micro-concrete contains particles of titanium dioxide, which convert health-endangering substances such as nitric oxides into harmless nitrates. The Institute for Technical Chemistry of Hanover University confirmed in 2009 that: "Overall, the ClimaLife roof tiles show a stable degradation efficiency." Every year, a 200 square metre roof surface neutralizes the nitric oxide produced by a Euro-4 car in 17,000 km. With every new or renovated roof the owner therefore has the chance to make a contribution to protecting the environment. The "air cleaner" continues to work for the life of the roof because titanium dioxide works as a catalyst and is therefore not consumed.

The high requirements on production and the continual investment in research are, and have always been, decisive for the success of Nelskamp concrete roof tiles. This also includes the development of solar modules which are designed to fit exactly with the concrete roof tile model "Finkenberg Tile" (SolarPowerPack).

Roof tiles with DINplus

Whether for a new roof or a renovation, robust, durable and easy-to-use products are always in demand. The DIN guidelines "Concrete roof tiles and fittings" (DIN EN 490 and 491) set the standard for this type of roof tile. At Nelskamp these criteria are exceeded by around 20 percent. Therefore, all our concrete roof tiles are certified "DINplus". The certificate relates to load-bearing capacity and breaking strength as well as resistance to wind and weather.