I've noticed condensation/moisture build up below the mattress in my v-berth this Winter after the few nights that I've stayed on the boat. Is drilling holes below the mattress a good option for helping to keep the bottom of the mattress dry? I have been considering drilling 1 inch holes spaced 5 or 6 inches apart under much of the mattress. The platform for the mattress is structural to some degree and is glassed to the hull
on port and starboard sides. I was thinking that drilled holes shouldn't be made through the tabbing, or too near the aft bulkhead.
I know there are systems that add a layer below the mattress, and I may go with one of these, but if drilling holes is effective then it seems a much cleaner/simpler setup and that it wouldn't interfere with access to storage
, etc. like the other options probably would. I've also read about using a vapor barrier on the top of the mattress, which I will probably add as well.
Anyone had luck simply drilling holes for ventilation? What are the best techniques for avoiding moisture build up?