Welcome to the Forum!
Important posts/threads you should read:
Welcome New Users
How to get good answers
How to attach pictures
The exterior wall that is common to the bay windows must, for the roof generator, be a single, unbroken wall even if just temporarily from front to rear to get the geometry you want.
I call that sort of thing a "Temporary wall" so that you get the roof geometry you need and want. Once you have it, you turn off "Auto-Build Roof Planes" in the "Build Roof Dialog" where you can then remove the temporary wall segments. That is what you must do to get your roof done, there is no other way in Suite 8.
DJP