We have a 2015 Bailey Unicorn Valencia. Mobile caravan engineer been out to service today all ok except the damp readings on floor from the front of the front unit to where the bedroom starts is showing readings of 40/45 % but inside front unit and under front seats are showing readings of12/13 doorway showing 45% but then in front of fridge & cooker 15% under bed 12% and washroom 16% all 4 corners dry and no obvious signs underneath. The engineer said it was very strange not come across before (just middle section) door seal seems fine any one had anything similar? Thanks Anne