The newly developed concealed fastening system hidden fix for öko skin facade slats enables quick and easy installation. With the concealed attachment, the öko skin slats are even more effective, since the overall appearance is not marred by rivets or screws. Rieder supplies all fastening components as well as the öko skin slats. These are delivered to the site already pre-drilled, whereby the installation effort is reduced. Rieder provides a calculation tool to calculate the exact number of required components.