A process for producing fiber reinforced building material coatings

The invention relates to methods for manufacturing fiber-reinforced building material coatings, by, be sprayed into a current architectural coating composition by means of a spray nozzle architectural coating compositions containing mineral binder, optionally fillers and optionally additives and one or more fibers are introduced in the architectural coating composition current and the resulting fiber-modified architectural coating compositions flow then impinges on a substrate, characterized in that the architectural coating composition additionally containing one or more polymers based on ethylenically unsaturated monomers.