We can learn it with watching this video.
Revit how to create a custom roof.
Please like this tutorial.
Located in the architecture tab this tool is used to create a dormer shaped hole in the main roof.
You need to create the bay window roof separately.
How can make mansard roof in the revit architecture.
Creating complex sloping roofs in revit 2014 roof junctions controlling roof slopes and levels.
This is the easiest way to do it.
Select the main roof then click on dormer walls and roof.
Using shape editing tools.
4 generate revit roof in revit create a new mass and import the sat file from the previous step.
But i m not really sure if this is a best practice.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
Create two vertical reference plans on each side of the center axis.
Click the green check to complete the opening.
Create a dormer opening.
I believe this tools are not design for this purpose.
Tutorial revit architecture 2017 lezione 40 inserire e personalizzare scossalina tetto in revit how to create and custom fascia and flashing roof in.
You may have to adjust its xyz location before finishing the mass which can be accomplished in plan or elevation.