Use join unjoin roof tool.
Join roof tool revit.
This tool is located in the modify tab.
2 use the wall join tool to remove join cleanup another technique to remove the join clean is to select the wall join tool in the modify tab.
This is a general.
With the join unjoin roof tool selected you need to click on the line of the roof which is on the face of what you want to join to the other roof.
You can join a roof to the top face of another roof and the wall below that roof if you select the wall as the target.
Use the join geometry tool to create clean joins between 2 or more host elements that share a common face such as walls and floors.
Put your cursor at the walls junction.
Use it to extend the dormer roof to the main roof.
9 join roofs add opening to create dormer.
We want to join this face to the roof.
You cannot join a roof to more than one top face of another roof.
A grey square will highlight the join.
The joined elements then share the same line weight and fill.
In the options bar select the don t clean join option and a thick line will appear.
You can join roofs to other roofs or walls or unjoin them if they were previously joined.
You can also use the tool to join hosts and in place families or hosts and project families.
To create a dormer model required walls and additional roof.
I ve zoomed in closely here hoping that you can see.