I live in a humid area and currently have wool carpet on yellowtongue. In really humid periods, the wool soaks up the moisture and even starts to get the particleboard underneath damp. It stinks and the legs of the wooden furniture start growing mould!
I'm going to replace the carpet with a nylon so that it is resistant to moisture. I feel like I would also like to put on a waterproof layer on the yellowtongue, but I'm confused as to what I should use. Most of the advice I can find online assumes that I am either leaving the yellowtongue bare, or laying wooden flooring or tiles over it.
What should I use to make the yellowtongue water resistant in such a way that it doesn't leave an odor and won't interfere with the laying of the carpet?