Random Polygons rendered in 3D View

[pulsar99]

Hi,

while building my house random polygons show up in the 3d view. This occurs especially often when i create triangular walls.

It is quite annoying, because these wrong polygons block the view to the room. Is there a way to fix this?

Thanks!

[Puybaret]

These must be some parts of the ceiling which weren’t computed correctly.
Unselect the Display ceiling option for the rooms you created to make them disappear.

[pulsar99]

Yes, it definitely has something to do with the angled ceilings. Deactiving the ceilings fixes it - thanks for that fast advice!

But is there another way to fix it while leaving the ceilings active?