You could ask Bob from Northern greenhouse sales, he might be able to clue you in - and he sells a great woven poly product.

Thanks - I just e-mailed him. Was actually looking at their site, since another gardener suggested their poly product and said it was terrific... thanks! if i find out, i'll post here for other folks

I do not think anything can glue polycarbonate. I've tried many glues that claim they work. None I've tried do.

Possibly, with woven materials, an engineer could come up with a product that could hold two components together. I have not found any Chemists that can in six years of looking.