Vapor barrior and foam on refer box floor?

[6cuda6]

So looking for some opinions....should i out vapor barrier down on the aluminum floor of the reefer box then foam/ sub floor or foam directly in floor?

 

[Motor Coach Dreamer]

I'm not 100% sure, but if you spray no vapor barrier is need.

 

[6cuda6]

I'm not 100% sure, but if you spray no vapor barrier is need.

Thanks, thats what i thought.