A roller shutter, roller door or sectional overhead door is a type of door or window shutter consisting of many horizontal slats (or sometimes bars or web systems) hinged together. The door is raised to open it and lowered to close it. On large doors, the action may be motorized. It provides protection against wind and rain. In shutter form, it is used in front of a window and protects the window from vandalism and burglary attempts.
Read more about Roller Shutter: Applications, Types and Operation, Components, See Also
Famous quotes containing the words roller and/or shutter:
“To believe that Russia has got rid of the evils of capitalism takes a special kind of mind. It is the same kind of mind that believes that a Holy Roller has got rid of sin.”
—H.L. (Henry Lewis)
“The rays which stream through the shutter will be no longer remembered when the shutter is wholly removed.”
—Henry David Thoreau (1817–1862)