It not an expected behavior, so it's a bug if you prefer.

Thank you for your answers, i'll do that !
It's already a component, i'll hide it until I need it and until that glitch has been fixed.

As the resolution increase, it disappears. There are still some traces with a x2 factor, almost ok. With a x4 factor, no more traces.

Thank you for you answer. It still present with OpenGL disabled and it also appear on 2D PNG export, just a little bit less visible.

I though it was an OpenGL issue but it happens even with OpenGL disabled.
Good idea for a 2D export, I just tried, it's a bit less visible, but present.

Hi,
I would like to know if my problem is known and if there is a solution.
I can see the woodwork through the roof if I step back the view.
With a closer view, I can't see it (normal behavior).
It happens even with a tickness on the roof.
I can add screenshots if it's not clear.
Thank you for your help.