Visible lines from different floors are visible in 3D model and elevation (How i can avoid or fix this issue)

Hi Folks,

how I can avoid, that in 3D model is a visible line from different floors (blue circle)!

  • Can I erase this line?
  • How I can fix this problem?

 

By the way:

How you would create an fassade raster (sandwitch elements> renobond) on this 3D model

 

Konrad