Hi We’ve got a 2015 Bailey Valencia just had it serviced and engineer found water ingress from roof cross strip over the bed. The van is still under 12 month warranty period from dealer and they have agreed to carry out repairs but unable to take it into workshop for 2 weeks with wet weather we are having we want to try to prevent any further damage any advice on any tape etc we can use that will not mark the top of the van when it’s removed. Any advice appreciated