I inserted edge loops to create the 'windows' but I have now so many faces. What should I do to have a clean topology without changing the geometry?

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If I remove the edges in the middle of the windows (Dissolve Edges option) I loose the geometry. So I don't know how I can clean this mesh up? enter image description here enter image description here Here is the original geometry I want to keep. enter image description here

  • $\begingroup$ Updated...see below $\endgroup$ – Patdog Nov 25 '16 at 9:43

ALT select edges in Edge Mode, and X - dissolve.

dissolve edges

Update: In response to your Sub-div issue. Instead of just removing geometry, you might look at how you are modeling. In the example below I have made the windows edge loops. The one on the left is all quads, and the one on the right has one N-gon in the window - if you don't mind N-gons. The advantage of this geometry can be noted on the sides [top & bottom] where less faces are needed.

enter image description here enter image description here

  • $\begingroup$ I use a subdivision surface modifier. If I remove the edges inside the 'windows' will this not affect the geometry? $\endgroup$ – Grobby Nov 24 '16 at 22:29
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    $\begingroup$ If it is only the sub-surf modifier- the shape will probably change at the corners. If your edges are Marked Sharp and have edge crease of 1 - they will not be affected. $\endgroup$ – Patdog Nov 24 '16 at 22:38
  • $\begingroup$ thnaks. There can be issues with N-gones? $\endgroup$ – Grobby Nov 25 '16 at 10:22
  • $\begingroup$ Yes and no. Nice explanation here blender.stackexchange.com/questions/89/… $\endgroup$ – Patdog Nov 25 '16 at 12:21

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