In the dialog click yes to attach the dormer walls to the roof.
Revit dormer roof.
To create a dormer roof we first need to start with the smaller roof portion of the dormer.
Get these project files and all advanced 1h courses.
Architecture tab opening panel dormer opening highlight the main roof on the building model and click to select it.
On the modify tab click join unjoin roof.
The dormer roof is extended to meet the main roof.
Watch the status bar to be sure that you are highlighting the main roof.
This tutorial will show you how to create a dormer on your roof in the revit prog.
How to model a dormer roof in revit.
The pick roof wall edges tool is active so that you can pick the boundaries that compose the dormer opening.
In the 3d view select one of the back edges of the dormer roof and then select the plane of the main roof.
Dormers are creative features in houses that are tricky to create in revit.
Watch the status bar to be sure that you are highlighting the main roof.
You can model this in any of the 3 primary roof modelling methods but in the example i have opted to use the roof by extrusion tool.
The pick roof wall edges tool is active so that you can pick the boundaries that compose the dormer opening.