I want to create the ceiling using Dynamo like Floor.ByOutlineTypeAndLevel for typical flat ceiling ( basic & compound for different material type)
I don’t think we have that feature yet in Dynamo 1.0.

We need Roof.ByOutlineTypeAndLevel also as the basic generation from Dynamo to Revit even though the clockwork has Roof.SlabShapeByPoints.

Revit does not seem to expose any ceiling creation methods to the api, so it looks like Ceilings are out of the question.

Roofs should be possible with the “NewFootPrintRoof” method. There’s an existing topic on that: