Puzzling as I've got the Hymer stickers in my book issued by an Eriba dealer. The damp check was all I had carried out in order to maintain the water ingress warranty. At a cost of £50.00 plus vat I wasn't expecting much, but the gentleman using the damp meter took almost two hours to complete the test & fill in the paperwork. So it wasn't simply a case of him removing my money.
I wonder what would happen in the event I made a claim
It's a moot point however. I was out of the country for an extended period & could'nt get the third annual water ingress check done. So my water ingress warranty's gone.
I did discuss at length with the dealer the construction of the joints & likelyhood of failure. He's been at the factory on several occasions to see the vans being put together. He was of the opinion the water ingress through the main construction joints was a very rare event. He said in the event of a leak the plastic sealing strip could usually be seen to protrude from from the bodywork IE not sitting flush where it should be.
I think taking a van several hundred miles with the sole intention of getting a damp check carried out is farsical. Silly situation IMO