So your going to install in the inside wall of your RV? Will you put some sort of paneling or interior wall to make it look factory on the inside? Are you going to just glue it in place? I would install in such a way that you can reverse if you need to in the future.
I would think it would be fine on the inside of your RV but you never know what the long term result will be when you might be the first person to do this mod.
You could try a wall of the refective bubbles as well. It would be thinner.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor