Frequently asked questions

Do you have any questions about our mounting systems for solar systems or about a specific project? Our team is happy to help you — contact us directly or use the form for your request.

info@varista.de
+49 8377 929 40 90 30
Do you make custom metal replacement bricks?

Yes, you will find a large part of our range of metal replacement bricks in our product catalog. If you can't find the right one or don't know which one you need, send us an email with the information about the type of brick or a picture and dimensions of the brick. We can offer a metal replacement tile for almost every roof tile.

Do I have to flex my tiles with every roof hook?

No, not with the VSM series product. Thanks to the hook neck geometry, brick processing is not necessary. It is also possible to mount on both deep and high beads.

Does the hook come in different neck heights?

Our roof hooks allow a neck height adjustment of 30-50 mm.

What is the minimum roof pitch do installers need to install hooks for PV systems?

The required roof pitch depends on the type of hook used: For hooks with flex work, a minimum slope of 15 degrees is required. For hooks with metal replacement bricks, the recommended minimum slope is 18 degrees.

Up to which snow load zone are your roof hooks suitable?

Our roof hooks are suitable for snow load zones up to and including zone 3. To safely design the system, we recommend that you also carry out the static calculation using our pro.tool planning software. This ensures that all components meet regional requirements — even with heavy snow loads.

What do I have to consider when it comes to roof insulation?

Roof insulation requires the use of insulated spacers in combination with longer screws to prevent thermal bridges to avoid and ensure the mechanical stability of the PV installation.