You didn't post the exact model and year or your RV. From the picture it looks like a motor home. Do you have fiberglass, aluminum or laminate? In any case, it is most likely a sandwich of inner and outer layers with a layer of foam insulation between.
Why take that layer off?? Just add the insulation over it. Taking the inner layer off will probably make it a much weaker door anyway.
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2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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