SUNSYSTEM TPO-EW is a ballast mounting system designed for flat membrane roofs. The modules have an east-west orientation and a tilt angle of 5, 10 or 15 degrees. Membrane roof ballast systems ensure a safe and durable installation of the photovoltaic modules. The fastening of the system is carried out by means of metal plates, which are fixed to the membrane roof with the help of an additional piece of membrane. In addition, ballasts are placed on the slab to ensure maximum resistance against adverse weather conditions. The modules are spaced at a sufficient distance from the membrane thanks to the sufficient height of the aluminum profile.