Check out the full thing.
Revit 2018 cut extruded roof.
Valid boundaries are highlighted.
This is a general.
The wall must be attached to the target roof and the target roof must be a footprint roof.
Add vertical or by face opening this is part of the revit pure basics package.
In the roof reference level and offset dialog select a value for level.
After that you can click finish to execute the cut.
Determine the length of the void ideally in 3d view at wireframe mode extend this in order to intersect the roof surface that will be cut use the cut geometry command and select first the roof than the void.
Specify the work plane.
You can use model in place when you want to cut system families like roofs or walls.
You can join roofs to other roofs or walls or unjoin them if they were previously joined.
The highest level in the project is selected by default.
Display an elevation 3d or section view.
Posted june 18 2009.
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.
Creates a roof by extruding a profile that you sketch.
If the go to view dialog displays select the appropriate plan view in which to edit the profile.
Click architecture tab build panel roof drop down roof by extrusion.
Closed loop sketches in sketch mode click.
I can t seem to cut out the roof where the walls of the 2nd floor extrude up past the roof.
Cut openings in an extruded roof select the extruded roof and click modify roofs tab opening panel vertical.