Large Marge, your memory is failing you, I am not a Newbie.
Some people have enough āsmartsā to think through and analyze how to prevent issues such as mold. I am one of those people. My bed area as well as all of my small travel trailer has zero mold issues. I thought all that stuff through before I started renovating. I have spent the last 50+ years professionally building things. I do not need to be told what to do and I am not even close to being a ānewbieā. I have 50 years of professional building experience and that means I have skills and knowledge and the result of that background is I have zero mold issues in my travel trailer. Your way is not the only way. Moisture never reaches the boards under my mattress or even gets into my mattress cushions and all my cabinets are constructed with ventilated cabinet doors. I have mesh panels that allow air movement on every one of my custom cabinets that I designed and built myself. They are designed specifically to prevent mold issues by allowing for a constant air exchange. If you think before you build you can avoid problems such as mold.
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