Tim, you're probably over-thinking this thing. Quality brands of heat tape will probably be your best answer with a quality insulation wrapped around the taped areas.
The very best insurance against the shredded tire damage is to keep the tire pressures exactly where they should be every morning when leaving, check temperatures/pressures along the way on your journey, and tell us what brand tire your RV came with. If the tire brand includes the word "King" you need to tell us sooner rather than later when you have shredded tire damage.
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Jim and DW 50 years Brenda
2018 40rssa and 2021 Jayco Eagle 40'
2019 F450, ruby red
Harley Road King & sidecar
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