Hope this is of assistance.
How to change a roof in new renovation revit.
You can use phase filters to control the flow of building model information into views and schedules.
If anyone is still looking for a solution you can make a roof cut into an existing roof using component model in place.
This should keep you existing roof in tact and show a cut in the new construction phase.
There are several things to consider during a roofing conversion even if it s changing an existing flat roof to a pitched roof.
Roof construction in revit.
If the go to view dialog displays select the appropriate plan view in which to edit the profile.
A plan view representation of the roof displays.
In either case you ll probably need to consult with a structural engineer to make sure the home itself can handle the change.
Many projects such as renovations proceed in phases each representing a distinct time period in the life of the project.
Revit tracks the phase in which views or elements are created or demolished.
Https youtu be pl5jqj8btfc wall layers in revit tutorial.
Create a void extrusion and make to required cut in the new construction phase apply the cut and done.
Cut openings in an extruded roof.