Revit Backwards Compatibility and IFC

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Revit is not backwards compatible (a later file version, say, 2019, can’t be opened in 2018).

You can get around this is through the Industry Foundation Class (IFC) file format. This file format is to BIM what the Drawing Exchange Format (DXF) is to CAD. Like the DXF format, the IFC format is first and foremost meant to be a way of transferring files between applications. Read more about IFC here:

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.

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

Modify the IFC export setup

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

Import the IFC model into Revit 2016, for instance.

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

The IFC import can be bound

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

Ungroup

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

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

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

Note the wall type properties are now completely different

Micrographics, Autodesk, Revit, IFC, Industry Foundation Class, Backwards Compatibility

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

If you wish to know more about collaborating with others on construction projects, contact Micrographics so we may assist you in the best BIM workflows for your situation.

 

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