No Exit signage

[Dave]

In an office block of 4 floors, there is a set of double doors leading to a large flat roof area.  The roof area is surrounded by a chest high wall and there is no means of escaping from it.  There is no fire brigade access to the roof even by TL or HP.

The area is occasionally frequented by visitors and members of the public who will be unfamiliar with their surroundings.

Would anyone consider provisioning the doors with 'No Exit' signage?

[AnthonyB]

From a health and safety point of view they should be locked with "no unauthorised persons" signage anyway that would also deal with the problem

[Dave]

Thanks Anthony

I may have misled you a little with my explanation.  When I said that the area was frequented by visitors and members of the public, I didn't actually mean the roof area, I meant the office area.

No locking device is fitted, so it is not possible to permanently lock the doors.

My main concern is that if someone did decide to exit the building on to the roof in the event of a fire, they may think that they were safe as they would be in the open.  The roof area is so large that it would take them a couple of minutes to realise that there is no escape from it.

I know that under normal circumstances its not good practice to use 'No Exit' signage, but I thought that in this unique situation it may not be a bad idea.

[Ken Taylor]

So why can't we have a lock and the no unauthorised access sign?