Is there any detailed documentation about roof baseline polylines and how they work?  I can't seem to find anything, but have got a lot done just by tinkering.   One question I have is, where should the polyline typically stop on exterior walls?  When generated automatically, it seems to go to different areas (sometimes to the outside of bricks, sometimes only to the outside of framing, sometimes to the inside of framing).   Overlapping doesn't seem to cause any problems, in