Floor damp question

Surfer
Surfer Club Member Posts: 1,303
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edited December 2013 in Caravans #1

As per my other thread regarding damp.  We have 60% damp in the floor on the front nearside of our 2011 caravan. 

Does any one have any idea what work needs to be done to remove damp from a floor as obviously lifting the floor would be impractical?