They are an effective aid for the evacuation of large numbers of people from buildings and for the rapid intervention of the safety and security services.
It consists of glass fibres with an aluminium coating giving it a resistance of 600° for one hour which complies with EN 12101-1.
An overlap of 300 mm will be provided for every modulation to obtain complete water tightness.
The screen starts to operate when it picks up a signal from the alarm installation.
Under normal conditions and when there is a current, the screen stays in position rolled inside the casing with the ballast bar at a predetermined level.
When the alarm sounds, the screen unfolds up to a predetermined height and at a controlled speed.