Select the closed loop.
Revit wavy roof with voids.
Edit the family and check the cut with voids when loaded checkbox then re load the family and cut.
In the family category and parameters dialog select cut with voids when loaded and click ok.
In this video we will go through adding a roof by extrusion to our house.
You can cut openings in the faces of these elements or you can select the entire element to make a vertical 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.
Use one of the opening tools to cut a vertical or perpendicular opening in a roof floor or ceiling for example to accommodate a chimney.
Click modify lines tab form panel create form drop down void form.
Please like this video.
On the create tab draw panel select one of the drawing tools.
Click in the drawing area and draw a closed loop that intersects solid geometry.
Open the revit family with unattached voids and click create tab properties panel family category and parameters.
Load the family into the project and place it.
After that you can click finish to execute the cut.
This video is part of a series that walks you through the process to model a house.
Use the cut command to cut the desired object with the family.
Click modify tab geometry panel cut drop down cut geometry.
In this tutorial i am going to show you how to create void extrusion by watching this video you will learn how to create it how to create void extrusion in.