Overview

Constructed from 75 mm wide x 20 SWG curled interlocking galvanised steel laths with steel end locks, these doors have fire ratings ranging from 2 – 4 hours. They are ideally suited for the protection of large external building access areas and internal building compartment walls to confine an outbreak of fire to the smallest area.

In the event of a fire, any fire resistant roller shutter that has been left in the open position is automatically closed by a thermally actuated thermal link mechanism.  When the temperature of the fusible link reaches a pre-determined temperature, it activates, to rapidly close the roller shutter.  Fire Resistant shutters are one of the most effective methods of resisting the intense heat applied to one side of a large area door to the other, without excessive distorting and without affecting the fire integrity of the door.