Ihave a low line Chausson 09 on a fiat just out of warranty ,I have had a look for first time on the top and across the roof at the back of the front doors there is a bead this looks to cover a joint in the roof .It runs across the van from side to side. It would appear water is standing along the edge of this bead instead of running of, Could anyone tell if this is normal? many thanks dorry.