This stainless steel suspension bolt from Van der Valk - with the Van der Valk product number 747915 is used to mount solar panels on the roof.

The bolt is screwed into the wooden substructure of the roof, then a hanger bolt clamp (721100) is attached to the bolt, to which a Side++ aluminum profile can then be attached.

This stainless steel screw from Van der Valk with 1 EPDM seal and 1 lock nut is for wooden beams. It measures 12×250 mm and must be used together with a hanger bolt clamp to attach the bolt to the aluminum profile.

The bolt can be mounted on the most common roof types. For example, on tiled, steel, Eternit and corrugated sheet metal roofs.

Watch the installation videos for a better understanding:

Click here to watch all the installation videos for a better understanding of the Van Der Valk installation systems and find the right system for your roof type.

You can also use the Van Der Valk planning tool to calculate your required components and you can view the installation instructions in the download section.

You can also consult our solar guide on common questions such as:

1. costs and income - Are solar installations in Switzerland worthwhile?

2. subsidies - Will my system be subsidized by the state?

3. steps to the solar system - Which individual points do I need to tick off?

And many more.