Search for "Roof" in the SketchUp Extension Warehouse. There are several free or lower-cost alternatives like RoofBuilder or native SketchUp tools that can get the job done. Support the Creator:
Cracking Instant Roof requires some technical expertise and patience. Here's a step-by-step guide to help you get started: instant roof nui sketchup 2021 crack work
If you want to create professional roofs efficiently, here are better ways to go about it: Free Trial: Search for "Roof" in the SketchUp Extension Warehouse