We realized the other day that we need to tear down all or parts of the wood paneling in our uninsulated sunroom due to water intrusion and suspected mold, and then we started to think about what we should have there afterward. What can/should you use for wall material in an uninsulated sunroom? Moisture-resistant gypsum board? Spruce or pine paneling? Is there any advantage in choosing sauna paneling which is "prepared for changes in temperature and humidity"?
Currently, there is beadboard on the walls, probably made of pine.