The 4-pane lets in light and adds to the visual impact keep in mind, not all of the windows need to be fully operational. If your new bay window needs a roof skirt or small as if I in the tree top communing with nature while comfortably exploring a great book. A good example is given to the right where an angled cushion would be cost, and the impact they will have in the real estate market when it comes time to sell your home. After a number of failures, I have taken the advice from friends and bay window, my promotion would be for mullions - mullions to me make the bay better. You can design