By default room separation lines are visible in plan views and 3d views.
Room separator revit hidden.
Use a visibility graphics setting to change their visibility in a view.
Revit has a tool called the room separator and can be found next to the room button.
Ifc file exported from revit project displays room separation lines and areas which cannot get displayed in the original revit model.
Duplicate your floor plan view views that you need to use room separation lines on.
Open a plan view or 3d view.
This allows you to draw an invisible line which will act as a boundary now when you try to place a room it will be confined with the walls and the room separator line.
This behavior can be an effect of a workflow where areas and area plan views were deleted in a project file but the areas were not deleted accordingly in the schedules and area plans were deleted before deleting all area boundary lines in the related area plan.
Then i usually get the disappointed look.
Use a visibility graphics setting to change their visibility in a view.
Architectural modeling rooms and areas rooms room boundaries room separation lines showing or hiding room separation lines open a plan view or 3d view.
Create rooms tags room separator and room tags with room area in revit.
But then i go over this little way of being able to have them hidden on the printed plan and still be able to add remove manage the room separation lines.