Roller Shutters
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.
Applications
Roller shutters have many applications, including doors for vans, garages, prisons
and warehouses.
Types and operation
- Built-on Roller Shutter Doors
Describes the type where the roller shutter box is fixed to the exterior of the
building facade.
- Built-in Roller Shutter Doors
Where the roller shutter box is built into the lintel above the window.
- Integrated roller shutter
A roller shutter and window combined as a single unit.
- Roller shutter with tilting laths
A roller shutter with laths that tilt, similar to an external venetian blind.
- Manual
With gear drive from the shutter roller traced through the building facade to a
universal joint on the room side that is operated by a cranked winding handle.
- Manual tape
A tape drive around a flange on the roller is traced through the building facade
with pulley guides to an inertia reel on the room side.
- Electric
With a tubular motor fitted within the roller. Automatic operation can be added.
Components
- Lath
Aluminium or PVC extrusion, single or multi wall.
- Roller (or roller tube)
Aluminium tube supported at either end by an end cheek.
,Shutter box Aluminium extrusions designed to protect the roller assembly.
- Guide rail
Aluminium to retain the shutter curtain. Rubbing strips to reduce rattle and draught
strips can be added.
- Bottom lath
Aluminium or PVC to match the lath. Rubber tubes to reduce draught can be added.
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