Roof-mounted and free-standing installation

Please also read and observe all General instructions for module installation.

Dimensioning of approved loads

Solarwatt solar panels meet all requirements of the extended test standard IEC 61215, including the test load increased by a safety factor of 1.5 in the mechanical load test.

Snow loads
The local regulations or the EUROCODE 1 (EN 1991-1) standard must be used to calculate the snow loads occurring on the module. It should be noted that these standards are designed for the effects on supporting structures and do not explicitly take into account the installation of solar panels.
In particularly snowy regions, snow overhang or snow accumulation can far exceed the compressive load assumed according to the standard and the local snow load specifications. This can result in an above-average load on the lower edge of the frame. 
Solarwatt therefore tests its products beyond the requirements of the IEC 61215 standard in accordance with additional standards, taking additional loads into account, in order to reflect the loads that actually occur in practice and to ensure safe operation of the products over their entire service life.

The following pages show you for each mounting variant

• the type of fastening with screws, clamps or insertion system
   
• the areas approved for fastening to the module frame (in mm)
   
• the maximum permissible pressure and suction load on the module 
  (the approved pressure load / suction load corresponds to the test load for pressure / suction divided by a factor of 1.5 (in accordance with IEC 61215) 
   

Panel vision XS (except product line vision construct)

Panel vision M (except product line vision construct)

Panel vision L

Panel vision XL

IMPORTANT NOTES ON CLAMPS AND RAILS:

The specified maximum loads correspond to the max. tested pressure test loads / suction test loads in Pascal (Pa). They are based on tests with clamps that cover the module frame by 8 mm.

Ensure that the clamps or mounting systems are correctly dimensioned. It must be possible to fully absorb the expected mechanical loads.

The module clamps must lie completely in the clamping areas shown. If the module clamps are not all located in a clamping range belonging to a maximum release load, the lower release load applies.

Information on the tightening torque of the clamping screw can be found in the clamp manufacturer's documentation. 

The solar panel must not be deformed by the clamping and the front glass must not be touched by the clamps. This does not apply to imprints in the module frame caused by clamps with a pin for potential equalization.

Under mechanical load, there must be no contact between solar glass and hard materials (e.g. metal, glass).

To prevent glass-glass damage, additional rubber coating must be provided on the rails if high pressure loads are expected (Solarwatt recommendation: EPDM rubber 'Krevolan' from Kremer).