Roof mat is made of waterproof material, and has grid matrix and fixing unit for photovoltaic modules, where fasteners are permanently attached to roof mat or integrated into it
摘要
<p>The roof mat is made of a waterproof material, and has a grid matrix and a fixing unit for photovoltaic modules (5). The fasteners are permanently attached to the roof mat or integrated into it. A permanent connection is formed as a riveted joint.</p>
