(08 May 2014, 7:28 pm)busman101 wrote A good question & one that I don't know the answer too off the top of me head, but will find out. All I will say is that I remember hearing a tale of a well known independent operator being short of a bit of glass and plated over the rear emergency exit with a bit of metal - the emergency hammer was still available as a means of escape !
I'll not be naming names !!!
It is maybe worth looking at, before VOSA or the HSE click on...
Cant imagine a long lasting sticky material - which is designed to last for a significant period of time and go through the rigours of every day wear and tear, will be too easy to break through from the inside, when covering an emergency window.