Sure enough the way a toposurface works is by defining a 2d z boundary surface and then whenever a boolean operation is applied on the toposurface everything z is considered to be cut.
Roof cut out revit.
The forgotten options 5.
Two additional options two cut plumb and two cut square require us to also input the fascia depth in order for them to work properly.
Structure tab opening panel.
Load the family into the project and place it.
Use a tape measure to measure the entire width of your building.
You can cut openings in the faces of these elements or you can select the entire element to make a vertical cut.
Click by face or vertical.
Open the revit family with unattached voids and click create tab properties panel family category and parameters.
Revit doesn t allow you to do cut out tunnels horizontal burrows or anything really into it s topography.
You can use model in place when you want to cut system families like roofs or walls.
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.
You can cut openings in the faces of these elements or you can select the entire element to make a vertical cut.
Architecture tab opening panel.
Measure the width of your building.
The default is plumb cut as we have seen in the previous images.
Revit gives us three options.
Before you start cutting you first need to determine how long your roof rafters need to be and the angles at which you ll cut the top and bottom of the rafter.
Click modify tab geometry panel cut drop down cut geometry.