Good morning Jack, Thanks for the tips. now i would like to ask another question. I used the  gable wall in this project but the problem is i have a cathedral ceiling in my kitchen and also in the living room behind it and when i use the gable wall (look at pic 2) it looks great on the outside but inside the wall goes through my kitchen, and the only way i can figure it out is to delete the wall but then the sun shines in around the edges, any suggestions on where i'm going wrong or what a person should do here. Thanks Conrad