Mike J (and the rest),
Thanks so much for your prompt replies (glad I found this forum). We caravan year around and the winter doesn't lend itself to open windows and no heater. Also, we already have slatted beds. I fit an old bit of carpet in front of the door and make sure that our daughter's curtains are open, once she is asleep (she loves the cosy feel of her hideaway!).
I don't know what condensation boards are but agree with your comment about the metal facing being the problem - why didn't Bailey use a similar construction to the main door? I have to get the van serviced immediately after half term - does the agent need to order the part in (in other words, do I need to inform them now)?
I love the van in general - just this problem, the fact that the plumbing was wrongly routed (hot from cold tap, etc.), and the chassis had not been sufficiently tightened!!! Seriously though, I'd still buy another. Now, if only I could scrape together the readies for the Series 7.......
Bob