sheet of glass maybe 3/16" thick
I don't know. I suppose Lexan might be a good choice as far as weight and scratch-proofness go; I don't know about its shatter property, and don't feel like looking it up. But I did look up the brand that Skywagon mentioned, Webasto, and their models use "tinted Venus ® glass". (What's with the stupid forum s/w not allowing HTML special characters?!)Brightonuk said:Are there not acrylic roofs?