Roller shutter

A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The shutter is attached to an axle at the top (the roller), and this axle is rotated to lift and roll up the shutter to open it, or to lower it to close. The axle is typically rotated either manually, typically by pulling a strap, or an automated, motorized system may be employed, particularly for larger doors.

This versatile design offers comprehensive protection against various elements, including wind, rain, fire, and theft. When used as a shutter in front of windows, it serves as a formidable deterrent against vandalism and thwarting burglary attempts, reinforcing the security of the enclosed space. It also usually completely blocks out sun light.