[Reiver]

I use a shipping container for an extra garage...often park my 911 inside and I live in the Phoenix area with common 110 ambient degree's....it is under my pole barn steel roof and stays comfortable due to that.....the only way is to get it out of the direct sunlight unless you sprayed a foot of foam (properly) thru out the interior and that is still not as effective....most of the mobile homes in our area do the same...a roof overhead with a clear air space between.