To allow some leaking underfloor pipework to be replaced, I've had to remove the kick-board and base of my sink unit, and was it damp under there! I'm 99% sure that it's not because of the pipe leaks, and it's drying out quite nicely with a dehumidifier. But at one end there's the rising main (which, of course, was above the unit base) and my water-meter. The rising main has been dripping condensation, the more so since I had double-glazing installed last year, and perhaps this has soaked down to the concrete floor.
I understand why the rising main gets wet, but I'm wondering whether it would help to incorporate a ventilation grill in the kickboard when I re-instate it (and fit a new base)?
On the one hand, it would allow warm air to interact with the rising main, increasing condensation; on the other hand ventilation is meant to reduce it. Perhaps if I installed the grill at the end of the kickboard four feet from the main?
As for the main itself, I intend wrapping felt lagging around it and the other pipework, which will leave some of the meter still exposed. I'm thinking of applying a spray mastic to it (apart from the screen, of course).
What do others think?