Most leaks under the awning come from that joint and are an easy fix by adding caulk to the joint.
Repair leak by awning.
However you may want to take a repair kit shown below with you on holiday in case a leak does happen.
Try to overhang one edge of the tape over the strip beneath so there aren t any gaps think of them like shingles.
Use a sealant that is uv resistant exterior grade and designed for seams and metal.
Put a dab of the silicone caulk on your finger.
Clean the area surrounding the leak.
Step 2 spread vinyl glue on both surfaces and allow it to dry then position the patch over the torn area.
That way you can repair the leak.
Check the awning fabric for holes.
The surface must be free of dirt grease oil rust tar and any other contaminant that will inhibit a proper seal.
However if that air tube is still under warranty when you get back you should contact kampa vango or the retailer you purchased the air awning from for a replacement air tube.
The two surfaces should bond immediately.
Fix a tear in a vinyl patio awning by attaching a patch of vinyl with similar size and weight characteristics as the awning.
If it is a darker fabric use the clear silicone caulk.
Wash the awning with a mixture of warm water.
Step 2 clean any grime and or rust off the aluminum awning with a wire block brush to have a clean surface for the patch to stick against.
If it is a light colored fabric use the white silicone caulk for the repair.
Wash the leaking area and after it dries apply a line of polyether sealant to cracks or gaps in the awning.
The sealant will fill the crack as it dries and plug the leak.
First lay the awning on a flat surface and then using the repair tape cover one side of the leaking area with multiple strips.
Make sure the awning fabric is clean and free of mildew before repairing the holes.