The STOP-PTAK modules are designed for installation on cornices, ledges and sills, verge trims, sculptures, advertising boards, alarms, air-conditioners, cable tubes, and other projecting architectonic elements. For wider places it is recommended to install modules in two or more parallel rows. However, it is practiced only when we want not only to protect the facade (for this purpose one row would be enough) but also to prevent the birds from accessing the entire protected place. If needed, the STOP-PTAK modules may be easily divided into shorter sections and installed on arches - when glued to the surface, a module combined from several shorter sections has identical parameters and properties as a one-section module. In places where it is required, metal elements may be bent back to some extent, although that would make them significantly less aesthetic.