All photovoltaic panels presented by us have undergone initial durability tests by leading expert committees - TUV SUD, CQC. Frequently declared load indicators are: permissible snow load up to 5400 Pa, wind up to 2400 Pa (or 40-50 m / s). Therefore, the panels are almost as windproof as the roof. Photomodules are also tested for hail drops up to 25 mm thick at a speed of 23 m / s. In addition, the angle of inclination of the panels slightly reduces the impact of hail on its strength. But in our climate, such natural anomalies are extremely rare.