I believe this tools are not design for this purpose.
Roof with 2 angles revit.
Create a sloped roof in revit step 1 draw your roof step 2 define the slope.
Whether you want a double gable roof with 6 pyramid shaped dormers or a simple gambrel roof the basics remain the same.
9 join roofs add opening to create dormer.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
To create a sloped roof in revit modify the footprint sketch of the roof by selecting and specifying the slope defining edges of the roof.
You need to create the bay window roof separately.
This is the easiest way to do it.
A quick revit video tutorial showing you how to set roof truss heights to match the angle of your pitched roof.
Use join unjoin roof tool.
In the drawing area angle icons identify which lines of the sketch define slope.
Revit roof slope can seem complicated at first glance but by learning a few critical features you can create any roof shape you desire.
Using shape editing tools.
This tool is located in the modify tab.
But i m not really sure if this is a best practice.
To create a dormer model required walls and additional roof.