You need to create the bay window roof separately.
Revit join roof tool.
Revit structure 2014 concrete join order duration.
Select the second geometry to join to the first for example an edge of a floor.
If necessary use the viewcube to spin the design to facilitate selecting the wall or roof edges.
This tool is located in the modify tab.
Then follow these 2 steps.
Jaylord mirafuentes 3 867 views.
It is possible to change the join order.
To exit the tool click modify or press esc.
This is the easiest way to do it.
Click modify tab geometry panel join unjoin roof.
You should end up with another roof like this we are going to join these roofs together.
I believe this tools are not design for this purpose.
Using shape editing tools.
Use the join geometry tool in the modify tab to join the walls together.
The first wall you click using the tool has priority meaning the material layers inside the core boundary will go through the other wall.
To create a dormer model required walls and additional roof.
Click the join dropdown menu and select switch join order.
We are around the back side of the building now select this tool in the geometry tab called join unjoin roof.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
Use join unjoin roof tool.
Go back to the modify tab.
Revit arch 2012 geometry 11 join unjoin roof duration.
If you selected multiple join continue selecting other geometry to join to the first.
9 join roofs add opening to create dormer.
Use it to extend the dormer roof to the main roof.
But i m not really sure if this is a best practice.