Thanks - it’s called sentinel pro fabric and I think it’s either where stitching is or we had it set up on a slope so the beams were not symmetrical during heavy rain.From your question I’m guessing you have the TC - technical cotton - fabric? We haven’t needed to proof our Vango awnings yet, but we had a Cabanon frame tent with cotton fabric, and used Fabsil spray on an area that would get soaked through. It worked to a degree but not a total success, as sections of stitching had become stretched. I’d give Vango after sales a call for their advice.
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