FAQ: The solar panels and the snow – how to install properly?

The solar panels are designed to resist the heavy winds and the pressure from the loads by thick layers of snow.  What requirements are defining the module load resistance? 

The solar panel load resistance depends on the selection of frame and glass, also is affected by the way a solar panel is installed. Solar panel should have the ability to resist strong winds and heavy snow (for example snow thickness in some areas of northern Europe, or in the mountains may reach up to 2 m). The poor load resistance can lead to solar cell occur micro-cracks.  Unfortunately some producers lower the costs through reducing the thickness of aluminum alloy frame and solar panel glass, in fact weaken load resistance ability of solar panel. In addition, installers could further improve module stability and load resistance by adding multiple module supports (see pictures).