I am trying to create a roof for a building. I am not really sure how to do that. Playing around with the editor I created a hexagon brush and resized it until it made a trapeze shape. I rotate it to the angle I needed it and cloned it, mirrored it and so I have the top part. The side part I made it from a triangular prism, clipping it to the other brushes. It looks ok in camera view. But on grid it seems to have small imperfections. Also since I cannot snap it to grid I am afraid it can do some Z fighting. After playing around more I can do the top part with normal (not prismed) brushes, but it requires another clipping above to make a good angle. I would like to know if there is a good/clever way to do it or I would appreciate any hints.