Well Jim, you have touched on a subject near and dear to my little Burro
heart! For us an entirely different climate: moderately warm and usually dry in the summer and wet in the winter so that you can drive the moisture out with heat.
I'll go at it in this sequence:
1) Make sure (and this is not always easy) that there are NO ways moisture can leak in. All leaks
tracked down and sealed.
2) If you have a roof vent, get a cover which will allow you to keep it open even when it rains, and even a Maxx-whatever-it-is for a window to be able to keep it open. Air circulation is good.
3) In colder weather keep a small electric heater going on low to help drive the moisture out, and..........
4) Most importantly: As you suggested, a floor covering which can easily be removed to check for moisture is a must. While I agree with Donna that what moisture goes in can also get out, the problem is: What can leak in, in one minute, if it oozes, spreads, and gets sucked into stuff it may take 100 times (estimate) as long to get it out again. By that time you'd have a death trap of mold, mildew, foul odors, rot, and aggravation. What I did: Removed the blue carpeting (they must have gotten quite a deal on this stuff) and used it as a pattern to cut another one of some cheap Berber remnant. Utility knife works well here. If you want it bound, go to a competent and friendly carpeting place and get the information and supplies to bind the piece. Easier than it sounds. Here comes the important part: Cut an extra piece sized to cover the entire area from the door all the way to the kitchen counter, full width. Then slice the main carpet underneath with an L-shaped cut so that the joint is entirely covered with the extra piece.
5) Get some thin plastic foam-style underlayment, the bluish-greenish stuff and fit it under the carpet. It will not absorb moisture, so that when you pull it all up a small electric heater or fan will dry the moisture off the resin-coated floor with amazing speed.
We like the carpeted floor, and if you can divide it into two, three, or even four parts, you can whip the pieces out of there in no time flat. Dry using your method of choice.
Oh, by the way, Oregon does not have "wet" climate. We have other words for it here (unprintable).