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. In some parts of the world, roller shutters are subsidized by local governments due to the inherent security benefits. In areas that are frequently exposed to inclement weather, roller shutters are used as a method of insulation and can protect windows against hail damage.

Aluminum profiles are the best material of the framework, they have the excellent processing and mechanical performance, and a wide variety of color choices (powder coat, PVDF coat, anodize and wood) that adapt to variety of decoration styles and long-lasting colors against all weather conditions.