Room separation lines have two major issues that are exposed int the Revit Warnings dialog:
- Room separation lines do not have a "Disallow Join". Walls have a "Disallow Join" property that allows the user to specify exactly where they terminate. Room separation lines do not have this property and need it. Room separation lines connect to the center line of walls. When a room separation line and a wall corner join they overlap, and generate a "A wall and a room separation line overlap." error. It's both time consuming and very finicky to remove the error, since the room separation line must be pulled back far enough to keep the line from auto-joining, but not so far to stop bounding the room. This can also create be a graphical issues if the line needs to be seen as continuous from corner to corner.
- Room separation lines do not know if the wall they overlap with are room bounding. There are some wall configurations that don't room bound properly, like a wall with a sloped top or other edited profiles. A room separation line is needed for the rooms adjacent to such a wall. Unfortunatly, even if that wall that doesn't bound the rooms has "Room Bounding" unchecked it still generates the error "A wall and a room separation line overlap." There is no way to both eliminate the error and have the rooms bound because there is no way to shorten the room bounding line. If the wall the line overlaps with is not room bounding, no error should be generated.
