Wayne-Young: First, thank you very much for your response (100') at to the radius of the main roof curve. I'm a layman considering a curved roof over a modest sized new home I'm planning, and I'd just like to be sure of nomenclature: by "100 feet", does that mean the arc that a geometry drawaing compass would draw if the radius for the compass was set at 100"? Thank you very much for, again, the courtesy of a response. Thank you...!