That looks really cool!
I'm not too worried about the glass itself since you can add chemical compounds to make it durable and all. Glass isn't a limited resource last time I checked ... although the energy costs @_@
Glass is also pretty much impervious to chemicals. The only two that come to mind is Sodium Hydroxide (NaOH) and Hydroflouric acid (HF). Not really all that common, except for the Sodium Hydroxide (NaOH). NaOH reacts slowly to glass, it's only molten NaOH you need to worry about.
Of course, what ordinary person has molten NaOH and HF? [S]Except me.[/S] Just kidding.
Good Stuff. Good Stuff.
Yeah, HF is pretty strictly regulated. For good reason too as that stuff will kill you.