ᐅ HPL facade panels show dents in the center and around the screw holes.

Hello dear building experts,

For the facade cladding, we have chosen large-format, anthracite-colored HPL panels.
Part of it has already been installed, see photos.
The substructure is made of wood.
At first glance, it is clear that the facade does not have the smooth appearance we expected and have seen in photos of similar claddings.

The initial response from the contractor was basically "it can’t be done any other way" – which we do not want to accept.
A handover has, of course, not yet taken place.

Does anyone know this issue?
How could these dents have occurred?
How can the damage be repaired or prevented in a reinstallation?

I look forward to your insights!

Best regards,
Janine

Are those Tre*pa panels (am I allowed to mention that here)? What thickness do they have?

Hi, thanks for the question.

I also believe these are Tre*pa panels, but I can't confirm it for sure.
I just measured them, and they are about 0.55 cm (0.2 inches) thick, see photo.
I’m also attaching a photo of part of the substructure.

I would ask the same question directly to the company Trespa, including a few pictures. You should get a reliable answer there that will also hold up when dealing with the contractor.
Not exactly ideal...

It would be interesting to see how the panels looked upon delivery. I suspect that the screws were overtightened. The assembly instructions clearly state that the screws should only be tightened by hand. You could try this as a test on a few of them.

The fact is, this is not acceptable. Go to the company with relevant example photos and ask them to explain why others were able to achieve a flat surface.

Thank you for your reply, Pagoni2020.

As I mentioned, I am not sure if these are the exact ones – our construction company couldn’t say either. We are waiting for a response from the roofer about which manufacturer he ordered them from.