There are two ways to repair canopy covers.Step 1, clean the torn area and wait for it to dry.Step 2, use tent repair tape, apply it to the inside and outside, then cover it with unsealing sealer.If it is a larger tear, you will need a patch of the same fabric.Step 1, trim off the threads and unevenness of the torn edges.Step 2, apply the patch with the appropriate glue and press it against the tear on the inside of the top until the glue is completely dry, then repeat the same process for the exterior patch.