The reason SketchUp has such a rich "roofing ecosystem" compared to other CAD software is its Ruby-based API
A quality roof plugin automates the heavy lifting. You typically just select your exterior walls (or a face), tell the plugin your pitch (e.g., 6:12), and click "Generate." roof plugin sketchup
: Often listed as a top architectural toolset , it includes specific utilities for building roofs and roof frames alongside stairs, doors, and windows. How to Install These Plugins The reason SketchUp has such a rich "roofing