Revit: Lost / missing room

Rooms in Revit can be a great tool, but what can we do when they go wrong/missing! Here are some tips on solving the problem.

Trouble creating a room?
  1. Room separation lines: Room separation lines are ONLY for dividing an open plan space that does not have a dividing wall. Do not draw over a wall that isn’t containing the room – there is another problem.
  2. Joined: Are all the surrounding walls touching? Rooms are like water and can seep out of the smallest gap.
  3. Room bounding: In the properties of the walls there is a tick box called ‘Room bounding’. Make sure this is checked.
  4. Vertical: Check the floor and ceilings. If the walls don’t go all the way down to the floor, or all the way up to the ceiling, the room will escape.
You’ve created a room, and now you can’t see it?!
  1. Visibility Graphics: Turn everything on under the room’s category (VV>Model Categories>Rooms> Colour Fill + Interior Fill + Reference). This should help identify all the rooms, and those that are missing!
  2. Schedule: Create a room schedule, is it in there? (Check all phases!) If not, then the room has been deleted and will need to be remodeled. If it is there but the level says ‘not placed’, this means it has been deleted from the model but the information still exists in the file. You can
  3. Phasing: This is often the first place we look. It may be that the room was created in the ‘existing’ phase, and you are looking at the ‘proposed’. To solve this you can copy the room, move to the proposed phase, and paste ‘Aligned to same place’.
  4. Worksets: Is it in the correct workset? Has the workset been turned off?
  5. Hidden: It may have been temporarily hidden in view. Turn on the lightbulb on at the bottom ribbon.
  6. View template/visibility graphics: Check in the view template or visibility graphics that you’ve not hidden the rooms, or overridden the graphics.
  7. Filter: is there a filter turned on that hides that room?
  8. View range: does the view range include the room? You can check this by putting a plan region (View>Plan Views>Plan Region) over the area and changing the view range of this.
  9. Levels: If the room is built on the floor plan level ’00’ and the floor slab in that room is set to ’00’ with an offset (for example, +100mm) it may be that the floor becomes stuck between the level and the floor slab above.
  10. Computation Height: The base of the room will not be able to go higher than the level to which it has been built. If the floor in that room is raised, you may have to edit the computation height, so that the room does not escape below the floor. (Click on the level, and it’s in ‘properties’)

If you have found other causes and solutions, please comment!


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