Mine had a hole just above the gutter that had been plugged with an oval-shaped piece of baked bean tin. It had evidently been pushed through the hole and then held in place while the glue dried using a piece of elastic through a hole in the middle. It was then smoothed over with white bathroom sealant, and since my van is white too it looked better than it sounds!
"I'm a man of means, by no means....King of the Road!"