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 Topic: MAJOR damp problem - help/opinions needed
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25/2/2013 at 9:45am
Location: south cheshire
Outfit: VW Caddy Maxi
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So sorry to hear this.
If it's any consolation, my caravan was the same. It had been stored in a garage, and the chap selling said the 'tide mark' on the roof was just condensation - and I believed him!
Of course when I pitched it on the drive and it rained, the tide mark started getting larger and larger on the inside of the roof. There was also a leak through the window seal. And another where the roof joined the front (it's a pop top, so the roof lifts on a hinge).
The first thing I did was to cover the caravan with a tarp to stop any more water getting in while I fixed it.Then I put in an oil filled radiator to dry out the inside... when it had all dried out, I began to fix it, never seen so much sealant in my life! LOL.
A persistent small leak led me to look very closely at the outside, and the front trim had perished, so that had to be done as well! It's the black stuff in the middle of the trim on your third photo down. Easily replaced, you can buy it at seals direct. If it's only the ends, you can buy black marine sealant (liquid rubber) to just do the ends.
At the moment, I'm leak free (touch wood!!)
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25/2/2013 at 10:57am
Location: south cheshire
Outfit: VW Caddy Maxi
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this is the stuff I used on the outside for the seals (get a proper gun sized one - I bought a little one you have to press from the bottom, very hard work!), and this- screw cover trims (scroll down the page to see them, there are several different widths so make sure you get the right one) are what I bought to replace the trim. I put the marine sealant underneath, then threaded it through (I pulled it across with a pair of pliers) and then sealed each end with the sealant before screwing the ends back on.
Edited to add - seals direct will send you samples if you email them with the numbers, so you can be doubly sure you have the right one.
A further edit - when you take out the old trim, just check if you have rusty screws, if so, replace them with new ones if you can get them out. Some of mine I actually screwed into a blob of sealant just to make extra sure!
After you've finished the outside and found out where it's getting in, get the inside dry and start in there. You will have to replace the rotten framework. Before you put in the insulation and put everything back in, take off the tarp and run a hose over the van, while someone is inside to see if there are still any leaks you might have missed anywhere. I wish I had done that, as a repair to the inside had to be undone again as I had missed a bit on the outside!
Post last edited on 25/02/2013 11:09:48
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