ZRM+ was previously available in the M450 on-roof module and, since November 2025, has also been offered as an option for Level Up. The technology stands for Zero Reflect Matt+ and comprises a microstructured glass surface. According to the manufacturer, luminance remains between roughly 3,000 and 18,000 cd/m² even under steep irradiation, comparable to clay tiles. At an angle of incidence of 70 degrees, luminance reaches 29,000 cd/m², still well below the 50,000 cd/m² threshold.
A glare assessment by Bern University of Applied Sciences confirms that the legally relevant luminance of 20,000 cd/m² is not exceeded at any measured sun angle. The frameless glass-glass modules offer an efficiency of over 200 W/m², hail resistance class 5 and rain tightness in accordance with CEN/TR 15601. The system is intended to serve as an alternative to traditional roof coverings such as tiles or slate. (nhp)
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