This video demonstrates the following.
How to add a dormer to roof on revit.
First a work plane needs to be decided upon.
Architecture tab opening panel dormer opening structure tab opening panel dormer opening highlight the main roof on the building model and click to select it.
Then create a dormer opening to make vertical and horizontal cuts in the 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.
Or add dormer walls create a dormer roof and attach it to the main roof.
To create a dormer roof we first need to start with the smaller roof portion of the dormer.
The pick roof wall edges tool is active so that you can pick the boundaries that compose the dormer opening.
Add a dormer to a roof and use the dormer opening tool to cut the opening for it.
Select the wall type and constraints for a dormer that will be added to a roof.
Create the roof opening and finish the dormer.
Use the join roof tool to join the dormer roof to the primary roof.
Move the walls to the dormer.
After adding a dormer cut an opening for it through the roof.
Create the walls and roof elements that make up the dormer.
In a plan view alter the roof sketch to create a dormer consisting of a smaller roof only.
Create the dormer roof and join it to the main roof.
When using a.
How to model a dormer roof in revit.
Watch the status bar to be sure that you are highlighting the main roof.