Painter's fleece wallpaper - switch boxes without covers

Hello everyone,

The wallpapering work has just started here. We have chosen the option of painter's fleece wallpaper. Since unfortunately we don't have anyone in our circle of friends who has used painter's fleece before, we wanted to ask here. All the walls have already been wallpapered but not yet painted, and we were wondering why all the switch boxes that had a blank cover (Blinddeckel) were removed by the wallpaperer and then wallpapered over. According to him, it would be better this way because you wouldn’t see any bulges of the covers under the wallpaper, resulting in a nice, smooth surface. He is right, BUT there must be a reason for the covers.

It would be great if you could share your opinions and experiences, maybe even people who have wallpapered with painter's fleece.

Best regards

According to VDE not allowed.

Didn't you have the walls filled and sanded again?
For us, the covers were there so that the filling compound could be applied over them.

The most important thing is that you remember (preferably photograph and measure) where the empty boxes are.

Oh, that's not allowed? May I know why? Actually, all walls and ceilings would be filled before wallpapering, and defects in the wallpaper would also be filled afterward. However, the painting is still pending as the tiler is currently at work.

To your question:
... So that no moisture penetrates into the housing through the plaster?

According to VDE, all switching points must be directly accessible. However, it obviously looks bad. If you make sure to locate the boxes again (plan, magnet), then it is possible.