Cladding toilet front element directly on the frame?

Hello,

I am new here in the forum and would like to ask my first question(s).

I installed a Geberit cistern in cooperation with a sanitary company. (Company pressed water connection and co, and I clad with 2 x 12.5 mm Fermacell)

Now to my actual question:

- After cladding, I noticed that in the installation instructions screws were driven directly next to or into the frame of the cistern. In my case, there is about 10 - 15 cm of space to the next metal profile as shown in the pictures. Is that sufficient?

- Or should I afterwards screw in self-drilling Geberit panel screws into the frame so that it does not spring later and the tiles in the toilet area crack?

- If yes, I am concerned that the resulting metal shavings could "fall" into the construction and eventually start to rust, etc.

What would you do?

Thank you in advance for the answers

Regards Markus

- After the cladding, I noticed that in the assembly instructions screws were driven directly next to or into the frame of the flush tank. In my case, there is about 10 - 15 cm of space to the next metal profile, as can be seen in the pictures. Is that sufficient?

The Geberit frame is self-supporting. However, I won't have more than 40cm distance to the next support. By the way, with the original Geberit system supports, a maximum distance of 55cm is specified.

In the variant where screws are driven sideways into the metal profiles, this is only done if the front wall element is not anchored to a rear wall itself, or cannot be anchored. In other words, it is free-hanging (e.g., if the wall behind it is a drywall).

And yes, Geberit itself screws the cladding to the two vertical supports at a spacing of 12-16cm using self-drilling screws.

If yes, I have concerns that the resulting metal shavings might "fall" into the construction and eventually cause it to rust, etc.

Why? That's what the whole thing is built for. And if something in your front wall rusts, you have a completely different problem.