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I am trying to create a loop cut on the walls of a section of a house, however, it doesn't go all the way around. Ngons can't be the problem since I'm sure all faces are quads. However, it might be the orientation of the faces? Could it be the way I have a single-faced wall?

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Yes, it's the single-faced walls. You have some places where there are 3 planes sharing one edge. The loop tool can't create a loop past these places. You need to model those walls - the ones where you just have a single plane - like you've modelled most of them, as a U shape.

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  • $\begingroup$ I may miss something in your explanation but I'm not sure why you're talking about normals, you could create an edge loop through a series of faces with some flipped normals... Actually, as you pointed out, it's just that it can't create an edge loop through an edge that is shared by 3 or more faces. $\endgroup$ – moonboots Jul 15 at 6:12
  • $\begingroup$ @moonboots OK, just tried what you said and you're right. I was assuming that flipped normals was the reason the tool didn't work on 3+ faces that share an edge, without realising it was just an assumption. Thanks for the correction. $\endgroup$ – Susan Jul 15 at 7:27
  • $\begingroup$ yes so maybe edit your answer and just keep the real explanation ;) $\endgroup$ – moonboots Jul 15 at 7:38
  • $\begingroup$ @moonboots OK, done. $\endgroup$ – Susan Jul 15 at 8:33

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