Does any one have recommendations on thermal insulation for putting inside of door panels?  I have removed the interior for body work and rust removal, which is done.  We have used the camper for nearly 30 years of camping, so interesting to see that the factory installed fiberglass behind the kitchen unit did indeed absorb moisture and cause rust. Most of the rust to be removed was in that location, the lower panel.

Currently installing Fatmat (cheaper on Amazon than GW) for sound deadening.  Not planning on 100% coverage, more like 40% or so.  Plus I am not sure this provides much thermal insulation.

We camp in all weather in Oregon, so moisture/cold for sure, and heat in summer.  Thought installing some thermal insulation would be a benefit, but after reading several threads on samba I am wondering what to do.

Options:

1) Fiberglass.  I won’t do this given what I found behind kitchen
2) Denim insulation.  I have to assume this will trap even more moisture than 1!
3) Something like reflectix? But this is more for radiant heat and it may not have an airspace on both sides.

Other options?

Thanks!  

Doug
87 Westy