Industry experience shows us that it is much easier to specify on a BIM Execution Plan when all parties involved in the collaboration are on the same version of the Authoring system. If this is not possible there is a lot of groundwork to do get a Revit model into the correct state to export to IFC.

• There are multiple versions of IFC, so specifying which Version to use is important.
• There is typically data loss that occurs due to the different packages having modelling engines that operate on different principles.

To have access to a Revit IFC model in an earlier version of Revit, export the model to IFC in Revit 2019.

Modify the IFC export setup

Import the IFC model into Revit 2016, for instance.

The IFC import can be bound

Ungroup

Note the material assignment (information) is missing on elements.

Note the wall type properties are now completely different

Here is a link that explains the export setup in more detail:

• https://help.autodesk.com/view/RVT/2019/ENU/?contextId=HID_EXPORT_IFC