With its new glass fiber concrete, Rieder aims to gradually substitute cement completely in its products in order to become climate-positive by 2030.

The facade manufacturer Rieder has developed a CO2-reduced concrete, which will subsequently become cement-free. The idea behind this is thousands of years old: the Pantheon in Rome or, more precisely, the opus caementicium used there. The Roman builders mixed natural pozzolana – volcanic ash, trass and similar minerals – into this "cast masonry". Gradually, therefore, the cement used in the facade panels at Rieder is being replaced by natural pozzolans, which have significantly lower CO2 emissions during production. In the first step, 50 percent cement was substituted, resulting in a saving of 30 percent CO2. The result can be seen in the color "pine green" and the texture "slate" on the facade of the new Rieder headquarters glemm21 in Maishofen, Austria. The products "concrete skin", "öko skin" and "formparts" are available with the CO2-reduced matrix in selected colors. By 2027, Rieder plans to convert its entire product range to a cement-free material. This makes the family-owned company the first facade manufacturer to produce a CO2-reduced glass fiber concrete.