TD4 gs (51) back door seal problems?

We have a problem with the roof lining going into the seal it is very damp the fabric has come out of the seal it seems to be in the area of the seal ontop the car where the back door closes, would appricate any advice if anyone has had this problem cheers

have you got roof rails on check if they are tight the bolts that is other than that will be the door seal

I would be very surprised if this is not the same problem I had with my TD4. Water is coming off the roof and finding a route behind the the plastic trim that runs horizontally above the rear door. I had to remove both vertical trim pieces then remove the horizontal trim. Clean it all up and re-fix the horizontal trim with new trim clips and some mastic that will provide a water tight seal across the top. New trim clips will be required for the vertical trim pieces and some patience. I got the new trim clips from Britpart who knew exactly the pieces I required. Total cost for the job was about £10 and I suppose it took me about an hour. I now have a water tight door AND a dry boot storage box. Good luck.