To first export an IFC model from Revit, select Export > IFC:
See Exporting to Industry Foundation Classes (IFC) on the Autodesk website to learn about required settings in Revit:
Users should include "Export Revit Property Sets" under "Property Sets" and set the "Level of Detail" to "Medium" for best results.
The exported file can be uploaded to dRofus Web or dRofus client (desktop application). Read more:
Connecting to one or several IFC Models for 2D/ 3D viewing
In order to be able to upload IFC models to the dRofus model server, the User must have Model Server Rights.
For more information on IFC with dRofus, go to IFC and BIM .