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.
How to make a dormer roof in revit.
To create a dormer model required walls and additional roof.
Create the dormer roof and join it to the main roof.
9 join roofs add opening to create dormer.
Then follow these 2 steps.
Get these project files and all advanced 1h courses.
Use it to extend the dormer roof to the main roof.
After adding a dormer cut an opening for it through the roof.
Place the cursor in the drawing area.
This tool is located in the modify tab.
Structure tab opening panel dormer opening highlight the main roof on the building model and click to select it.
Watch the status bar to be sure that you are highlighting the main roof.
Select the wall type and constraints for a dormer that will be added to a roof.
To create a dormer roof we first need to start with the smaller roof portion of the dormer.
This video was recorded using revit 2018.
Create the roof opening and finish the dormer.
First a work plane needs to be decided upon.
How to model a dormer roof in revit.
Use join unjoin roof tool.
The pick roof wall edges tool is active so that you can pick the boundaries that compose the dormer opening.
This video demonstrates the following.
Add a dormer to a roof and use the dormer opening tool to cut the opening for it.
Move the walls to the dormer.