Natural cleaning by rain is far from sufficient, especially with low roof pitches, near farms, new development areas, forests and regions with little precipitation. On average, there is a performance loss of up to 15 to 20 percent within 1 to 2 years. Use conventional cleaners that can damage your system through glass corrosion due to aggressive ingredients. Thanks to its ingredients, this premium product is extremely gentle on materials and does not change the surface structure. A special active formula leaves behind a roll-off protection that significantly delays new soiling. Specially developed for all solar and photovoltaic systems in regions prone to dirt and with low roof pitches. To protect galvanized gutters, they should be pre-wetted with water. Depending on the degree of contami.