So inspecting a motorhome for damp

[TheWM]

I've read plenty of posts here that describe damp issues that are prevalent in motorhomes and some comments that you should have checked beforehand etc... But I cannot see that there are any details as to where and how people should be checking.

Whilst ideally getting a survey of some description seems to be the way forwards - it appears that even some habitation certificates aren't worth the paper they are written on.

So, I can get a decent meter - any specific places I should be checking? Or is it a case of everywhere?! I'm guessing that perhaps removing panels, under seats and wheel arches but I'd appreciate some specifics if possible.

I'm looking at the swift 686.

 

[Lenny HB]

To some extent a damp meter is only as good as the person using it. The non-invasion type give the best results but they are not cheap, the type with prongs will only check moister near the surface and can cause damage to the surface.
Tread carefully with a Swift they have the worst reputation in the industry for damp & water ingress problems.

 

[DP+JAY]

I agree with Lenny on this.
I use this one Broken Link Removed with this meter reading of 20 or less is dry.

Practice is the key, find pieces of wood etc to practice on, then be aware that what you are actually measuring is the conductivity of the material. if there are wires ot bits of metal brackets they will give high readings. the most common leaks are around windows, doors, rooflights etc. but also any seams or joints.

 

[hilldweller]

Tread carefully with a Swift...............

Otherwise your foot might go through the floor -- the floor being one area reported on here more than once.

 

[Jim]

As well as using a meter. Look (and smell) for damp and/or its effects.. Look for water marks on ceiling, especially around skylights. Check the ceiling in overhead lockers, feel for it around and under windows and vents and in corners. If buying from a dealer ask for a damp guarantee, the worse thing they can do is laugh. Best of luck

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[CWH]

We weren't aware of water ingress till when the moho was in for something else, our dealer pointed out the 'pimpling' on a side panel, which they duly replaced.

 

[hilldweller]

Look (and smell) for damp and/or its effects.

I was surprised to find some serious rot in the lower frame but no hint of damp smell. I was surprised.

Prodding with a thin screwdriver was frightening.

 

[CWH]

Prodding with a thin screwdriver was frightening.