Bill, Next time your in Auckland, get in touch and I will show you through the factory and If you give me time I will make a 3mm tank and show you the effects of it breaking. I will show you the wind loading tabled with the deflection figures and how far the glass will fly and if I can, get in touch with one of the industry leaders and see if they will have a talk to you.
Again
This IS MY TRADE and if people are not willing to listen to a person with 40 years in the glass trade and all the books that are used then thats their problem (and anyone else thats around when they break)
I know people that drive home drunk almost every day and have never had a problem but one day they will, and when that day arrives, it becomes other people problem.
Bill, this is NOT a go at you and it should NOT be read this way, Im just quite simply scared at the problems when something goes wrong when the glass is used for something other than what it is designed for