Gorgo said...
Don't bother. The tape should be sufficient. If it starts to peel then you can redo the the tape and sew around the edges.
One tip, you need to round the corners of the tape patches so there are no sharp corners to peel off.
Heating the tape with a hair dryer will help the glue to bond better.
If you sew then use polyester thread. Gutermann is ok and available at any fabric shop. Bonded polyester is the best but it's harder to buy. A sail maker might let you have the end of a spool for not too much money (that's how I got mine.)
Use an iron on the SILK setting to heat the glue up, this will help the glue soak into the canopy and once it cools off it'll never come off.
I once fixed a tear about 50cm long this way.