About 80 % of all products of the masonry industry in Germany are used for new residential building. If products for the refurbishment of masonry buildings are added to this, then over 85 % of all masonry products are used in residential building. Regarding residential building activity, it can be stated that about 73 % of all residential buildings in Germany are of predominantly masonry construction, with a slightly increasing tendency. Table 1 shows the development of market shares of the various construction methods reinforced concrete, masonry and timber over the years 2012 to 2017.