Copper or lead work best because it's easy to flash.
The flashing is the metal that keeps the water from getting between the roof and the wall.
for different material when designing
There is a lot of information on the treatment and decor of bay and windows that can be found. This information may help you out: http://www.bhg.com/decorating/window-treatments/basics/bay-and-bow-window-treatment-ideas/
A corbeled bay window is an upper floor only bay window that is supported on corbels or brackets. It is called an oriel.
Blinds look much better in bay windows as they can be mounted inside the window frame.
form_title= Bay Window form_header= Give your home a classic look with a bay window! Where do you want to install the bay window?*= _ [50] What size do you want the window?*= _ [50] What color do you want the framing around the window?*= _ [50]
Window treatments for bay windows can be found online at HGTV. At HGTV they have put together what they think are the best 6 window treatments available. Also one could check Wikipedia for information.
An oriel is a bay window on an upper storey that does not extend to the ground.
There's a lot online stores that offers bay window but I'll recommend andersenwindows.com. They will enhance the beauty and personality of your home with a high quality Andersen bay window or bow window.
Silk draperies can provide a touch of class to a bay window in an older home. Another option would be to use valances to underscore the antique value of an older home.
A bay window is a window that projects from the outside of a home or commercial building. It will make a cozy place inside for a window seat, or just add interest to the structure.
A window built to project outward from an outside wall.
A bay window begins at the foundation (or in some instances the floor system) and forms the offset the "sticks out from the house" and extends to the ceilings. Normal windows are actually installed in a bay window. A bow window is made so that just the window sticks out from the house and the floors and wall above and below the window remain straight.