Insulating

[D.MIDNIGHT]

 

[D.MIDNIGHT]

 

[D.MIDNIGHT]

 

[Keith in Co]

That looks like an excellent solution and should make your camper floor much more comfortable.
As far as I know, that polyisocyanurate (Rmax JM, etc) is the best foam board insulation. However, I haven’t been able to locate any 1.5” in the big box stores in my area. They list it on their web sites but say it’s unavailable.

 

[D.MIDNIGHT]

Keith,
found this in my local Homecheapo. went with it as it was moisture resistant and non wicking. Also, the lovely lady at the register rang both up as the 1 1/2" price so i saved $10 on materials.