An option would be to cut hole in the roof is to use roof voids the following way.
Revit trim roof.
The bad thing about extruded roofs is the fact you can t follow along with the footprint of your building the good thing is we can do something about that the objective of this video is to go to the plan view we will then create a void where our walls jag in and out this is going to allow revit to cut the roof properly in plan to get started jump into your revit roofs.
You can also extend non parallel elements to form a corner or trim them to form a corner if they intersect.
Trim and extend elements you can use these tools with.
Valid boundaries are a joined roof or its bottom face a side face of a wall a bottom face of a floor an edge of the roof to be cut or a model line on the face of the roof to be cut.
In this video i show you how to attach the walls in revit to the roof above them.
Https youtu be noznjnfia2u walls in revit.
Create an in place family roof at choosing void extrusion ideally in a section view draw the contourline of the void using the pick line option on the base of the inside edge of the roof determine the length of the void ideally in 3d view at wireframe mode extend this in order to intersect the.
Get these project files and all advanced 1h courses.
Use the trim and extend tools to trim or extend one or more elements to a boundary defined by the same element type.
You can cut openings in the faces of these elements or you can select the entire element to make a vertical cut.
When you select an element to be trimmed the cursor position indicates the part of the element to retain.
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.
In this example side faces of walls and joined faces of the roof were selected.