ob1thx1138
Member
The only thing I can see with a glass roof would be the possible accumulation of mineral or plant deposits from the rain and surrounding trees (just look at the build-up on the current roof after about a year), but thats nothing that a yearly cleaning couldn't fix.
That and condensation leading to the roof being a real mess to look at. It would probably only take a few months before the whole thing started growing a nice green film on the underside due to it being such a nice humid surface with plenty of sun light. It would end up looking more like the green house for the haunted mansion than a set piece from Fantasy set piece from Alice. lol