Hi all. I'm posting this on behalf of a good friend. He has an Avondale Avocet. These 'van's all seem to have the same curved roof and low awning rail height. This poses a problem for my friend because any awning he tries, seem to "dip" back into the 'van side rail. This allows rain water to collect in the roof. We have tried a Sunncamp nylon porch of mine, but this is worse. Anyone with an Avondale on here that can help please? He's been to several awning dealers and so far, they have been unable to advise.