I havent ever worked with it, but if it is for a green house roof I would hope it does not sag. It comes in "clear" so fingers crossed that equates to allowing more/plenty of light. I wonder if it has sharp edges and such, if that could be softened with something. I haven't looked up the DIY on it as of yet. I was hoping it faired better than all I have looked up on acrylic since acrylic warps. I suppose final option would be to make my own glass top...I'm not sure of that stuff allowing more light...
I'm familiar with that stuff. Sharp edges, saggy and ugly, but then again. So am I, I suppose.