The system is built on a set of base feet laid directly on the roof, onto which the vertically mounted modules are screwed. According to Over Easy Solar, no additional ballasting is needed, as the system’s dead weight of eleven kilograms per square metre provides sufficient stability. The vertical orientation also reduces wind uplift compared to conventional solutions.
Wind pressure acts primarily on the edges of the modules, while airflow swirling behind them creates a counterforce that pushes the system against the wind direction. As a result, it remains stable even at wind speeds of up to 47 metres per second – equivalent to wind force 12. According to the company, the system has been tested to this value in a wind tunnel.
