I believe this tools are not design for this purpose.
Make two roofs join in revit.
But i m not really sure if this is a best practice.
Move the roof up and see if it will join.
Select the wall and use the attach top base button to attach it to the underside of only the 5 1 2 roof.
You like these direct simple and to the point revit tips.
Then from the modify tab on your ribbon use the join geometry command and select the 7 1 2 roof and the wall.
Click view tab create panel default 3d.
You need to create the bay window roof separately.
If desired set the lines of the second roof to be slope defining except the roof line that will be coincident with the.
It will join in the wrong order and you will need to use the drop down menu next to join to switch the join order.
Move the roof toward the middle of the other roof to see if it will join.
Join roofs after you sketch walls and a roof for your design sketch another roof that you want to join to the original roof.
Use join unjoin roof tool.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
9 join roofs add opening to create dormer.
If the eaves don t line up exactly the join will fail and with two different pitches it is likely that the eaves are not lining up.
Using shape editing tools.
Select the roof and choose between raft cut and two cut in roof properties under rafter cut parameter.
Then follow these 2 steps.
This is the easiest way to do it.
Click view tab create panel default 3d.
This tool is located in the modify tab.
Use it to extend the dormer roof to the main roof.
Join roofs after you sketch walls and a roof for your design sketch another roof that you want to join to the original roof.
To create a dormer model required walls and additional roof.
We have plenty more for you.