Depending on the base geometry revit may make editing the mass accessible via grips push pull arrows but this is not always the case.
Rhino to revit roof.
Exporting elements from rhino so you can import useful shapes into revit.
In this case rhino is not used as an intermediary.
By enabling the directshape component in the grasshopper canvas grasshopper will then create a roof based on the lofted surface from grasshopper.
See hd version of video tutorial here.
This sample shows how to take normal rhino breps curves and points into revit.
Rhino to revit rvt revit model for the sample.
There are a lot of ways to bring in the rhino geometry but in this case we will.
Rhino office 3dm rhino model containing the source building model.
Creating a revit directshape roof.
In this video scott davidson of mcneel will demonstrate how to transfer information from rhino to revit creating revit objects from rhino geometry.
However the best method to generate native revit elements from rhino is to use the wall by face roof by face curtain system and or mass floors commands.
Rhino to revit gh grasshopper definition for the sample.
This will set the view so you can see the rest of the transfers.
Click on the zoom extents icon in rhino to find the roof geometry.
These elements will be hosted to the rhino geometry.
Bringing across the model.
The surface is then used to create a roof in revit.
Of course with a little more work that roof could be a roof from boundary and create a roof system family.