Yes, it’s a Westfalia and is apparently their own roof fitted by them in Germany. I was sort of trying to avoid contacting the dealer (there are only 3 in the UK) to tell them of the damage as I had an idea that them knowing about the repair what reduce what they offered me if I came to sell it back to them at any point. Maybe a bit of a strange thought I know, but their dealers always offer the best prices for them as they know they have a ready market to off them to. I think I’m going to have to bite the bullet though, I’m ok with doing a temporary repair but I don’t want to be sewing patches on, I’d rather leave that to someone who really knows what they’re doing.I would speak to the supplier of the roof,ask for a m2 of matching fabric.. then cut to shape,so that it goes round window from the top.. this will help prevent water ingress from above. Then double stitch it or get someone like mrs @BiTurbo to stitch..
If the thread is the correct type then the wetter it gets the more it swells and seals thread hole..
Not very technical but will help with looks and sealing.