Put your rafters on top of the walls.....so soffit area can be left open, but covered in HC.
As I mentioned in your other thread:
https://www.backyardchickens.com/threads/began-our-coop-build.1290597/#post-20943857
As I mentioned in your other thread:
https://www.backyardchickens.com/threads/began-our-coop-build.1290597/#post-20943857
