Replaced the material last year due to it ripping in windy conditions.
There does seem a fair collection of tapes etc
http://www.amazon.co.uk/s/?ie=…lb1ourox_e
Best solution however would be to take the awning off (Full info on Fiamma site)
Your would see then that it is held onto the winder by a hem with a plastic tube insert.
If you have or know someone who could re-sow a new seam after cutting off the ripped portion it would make a better job
David