When selecting building materials, the costs incurred for maintenance, maintenance, cleaning and care are ideally also taken into account. However, a building material or component should never be considered individually, but always in the context of the building. This applies above all to the service life of the different materials. Building materials with similarly long life cycles are well suited, as this ensures that less needs to be replaced and that no great effort or high costs are incurred by renovation measures. Recyclable materials are preferable.