In my Revit model all rooms Upper limit is set to the Upper level. This way all the floors, ceilings and roofs with different heights and slopes creates a proper volume of the rooms.
The problem is that when I export it to an IFC, those vertical boundaries in an IFC model are ignored and rooms (exported as spaces) are shown as their height is from Level to level.
An example bellow:
Revit model:
Exported IFC:
Anyone knows how to solve this problem? This happens in every model and on different devices so I think the problem is in an export parameters.
