All doors situated on escape routes must be regularly checked

to make sure that they can be opened easily and immediately in

the event of an emergency.

If a door has to be fastened shut while people are in the

building, it should only involve the use of a simple bolt or latch or

other type of fastening that can be readily opened by all staff

and others.. The operating instructions for the fastening device

should be displayed clearly on the door. Doors designed to

close automatically on the sound of the alarm must never be

obstructed by objects that would prevent them from fully closing.

Signs can be fitted to these doors to remind people of this

equipment