I need to work on familiarizing myself with the roof generator. I have no problems creating rooms and the roof although I am doing it incorrectly. I select all sides and bring the pitch down. Adjust the thickness and create the roof. I then go to modify in furniture editor and adjust the pitch. I cannot lower the roof below 0" elevation when I do it that way. See screenshot. https://ibb.co/kGw7gtN

I am also wondering if there is a simpler way to make a roof or what I am missing.

Thanks again, oh and I am working on your model so I can try and compare the differences. Is there a way to open the roof generator on an existing roof, the one you use to select and modify the faces in the beginning?