Select the walls and on the properties palette set the base constraint to roof line.
Roof to wall line revit.
By default all walls created in revit are joined together.
By attaching a wall to another element you avoid the need to manually edit the wall profile when the design changes.
A common issue among revit beginners is the unability to properly control if a line will display between 2 walls.
You can set an overhang on roofs created with pick walls.
Then choose attach top base 2 and finally select the roof 3.
The other element can be a floor a roof a ceiling a reference plane or another wall that is directly above or below.
Once again select the wall first 1.
Select each boundary line and set the value in properties or in option bar.
For her expertise with revit but also for her knowledge of how programs can work in real life situations.
After placing a wall you can override its initial top and base constraints by attaching its top or base to another element in the same vertical plane.
Sketch mode is used to allow you to define the boundary of your roof.
Use pick walls if you want the roof to automatically adjust when walls are moved.
Roof by footprint can be used for both flat and sloped pitched roofs.
In some cases you want to see a line between two walls especially in a case where an interior wall is joined with an exterior wall.
Next the walls need to be moved to the roof line to create the dormer.
5 activate overhang on picked walls roofs.
As another option to hosting the extra fascia cap to the soffit revit also allows you to host the roof.
Select the roof tool.
I drew a model line along the workplane of the rake and along its return back to the wall.
In this video i show you how to attach the walls in revit to the roof above them.
Fascia to a model line.