Love what you are doing with your kids. This past summer my 14 year old and I rebuild our front porch and roofed the garage - I had a great time with him. Only wish that I involved him more in the eariler years.
I am going to steal some idea's from this build. I absolutely love what your doing with the house. As for the barn? What can be said other than outstanding. I can already see the OSB coming off the interior walls of the garage and being covered in shiplap. Thanks for the inspiration!