Greetings! We have a 2018, Pace Arrow 35 M. The walls are covered with a shiny covering. The instructions that came with the RV specifically say DO NOT drill holes or screw into walls. I think blind penetrations is bad idea with wiring and plumbing everywhere.
Nothing sticks to the walls. I have tried 3M, Museum putty, nano tape, gaffers tape, every type of adhesive I have ever seen recommend. They all fall off after a couple of hours.
Any secerets not on internet?