You need to create the bay window roof separately.
Revit roof unwanted valley.
Using shape editing tools.
Tutorial on roof construction modeling in revit.
This tool is located in the modify tab.
Use join unjoin roof tool.
This is not a revit problem but a roof design issue.
Is there any other way of creating roof valley.
I need to create that to be able to get in schedule lenght of it.
To create a dormer model required walls and additional roof.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
I believe this tools are not design for this purpose.
You have to make the lower roof wider grow to the right to raise the ridge to eliminate the valley or you need to modify your porch roof moving it left to ellimnate the unwanted valley.
Then follow these 2 steps.
Creating complex sloping roofs in revit 2014 roof junctions controlling roof slopes and levels.
This video will show you how to do it automat.
But i m not really sure if this is a best practice.
9 join roofs add opening to create dormer.
This is the easiest way to do it.
I did on my model but i am not very happy with the results.
How do you join perpendicular gable roofs in revit to give it a smooth join and make it look well put together.
Get these project files and all advanced 1h courses.