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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 mechanism involves lifting the door to open it and lowering it to close.
The speed doors are flexible and light doors for intensive industrial use. High-speed doors are door systems, mainly used in industrial applications. They are technical enhancements of the generally known sectional doors, PVC fabric doors or roller shutters. The main difference is that the durable construction provides a higher operating speed ...
Oversized roller doors in commercial premises are not sprung (except in the US), and a manual pulley and chain system or a geared motor is used to raise and lower (roll up and roll down) the door. Roller doors cannot be effectively insulated. In the UK (and other parts of the EU), 'insulated' roller garage doors are available, using an aluminum ...
A roller shutter or sectional overhead door is one variant of this type. A tambour door or roller door is an up-and-over door made of narrow horizontal slats that rolls up and down by sliding along vertical tracks; it is typically found in entertainment centres and cabinets.
The Randwick substation is constructed in load-bearingtuck pointed face brick. The windows appear to be metal framed multi-paned. Large plant access doors are steel roller shutter type. The architectural style is Interwar Mediterranean. Exterior materials used were face brick, rounded ceramic roof tiles, and steel roller shutter doors. [1]
Fire rated hinged steel door with panic bar Fire rated vertically sliding gate, fire rated swing door and fire rated roller shutter. Fire rated horizontally sliding gate. This European Standard identifies safety and performance requirements applicable to all fire resisting and/or smoke control products intended to be used in fire and/or smoke ...
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