If you don't know the workflow on how to render the exterior of your home design, here's how Farnsworth House by Ludwig Mies van der Rohe works demonstrated on our youtube channel：
Model in SketchUp
Upload it to your personal library
Drag and drop to adapt the materials
Set up your camera angle, and render!
Tips for uploading
There's a size limitation of 30x30m, so make sure to scale it after uploading if you need to
Make sure your SketchUp models are as clean as possible
Make sure that there is not a backward surface in the model, otherwise, it will be missing once it's uploaded
Roofs and ceilings are independent components
SketchUp texture sets can be recognized in Coohom
Turn on the sunlight for exterior rendering, as the lighting will be low by default
Useful link: