A shutter is a solid and stable window covering usually consisting of a frame of vertical stiles and horizontal rails (top, center and bottom). Set within this frame can be louvers (both operable or fixed, horizontal or vertical), solid panels, glass and most any other item that can be mounted within a frame.[1] Shutters may be employed for a variety of reasons, including controlling the amount of sunlight that enters a room, to provide privacy, to protect against weather and to enhance the aesthetics of a building. Depending on the application, and the construction of the window frame, shutters can be mounted to fit within the opening or to overlap the opening. On some styles of buildings it is common to have shutters to cover the doors as well as the windows by mounted rolling shutter inside of double glazing.
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