After converting mass faces to a roof, you can use shape handles to extend the roof boundaries.
- In the drawing area, select the roof face.
When you select the roof face, roof shape handles display. Shape handles are available for all non-horizontal side surfaces. Shape handles are not available for surfaces created by openings placed in roof faces.
- Drag the shape handles to extend the roof face.
These extensions remain in effect after an update to reflect changes to the mass.

Extending roof face using shape handles