A device for the prevention of vegetation on surfaces exposed to weather

摘要

The invention relates to a device for the prevention of vegetation on exposed to weather surfaces, in particular roof surfaces, comprising at least a web of a metallic material with a structured surface, wherein the surface area is increased and thus the residence time of on the surface of the fluid media, in particular water, is increased. Dollars a the invention is characterized in that the metallic material, which can in particular high-purity electrolytic copper is, such a thickness, that at any desired roof shapes can be adapted freely.