01-09-2009, 08:59 AM
I have a container and I have slept in it. It gets very cold at night but some of that is because I prop the doors open so I can't get locked in. I am usually up and out with the sun so I can't comment on the heat in the day I have entered in the day of course to retrieve tools and I can't say that it is all that bad although I am only in and out. The conclusion I have come to is that the single most important thing to do is put on a roof with as large an overhang as possible. Keep the sun off of as much of it as possible. This also helps with the cold at night. Further insulation would be good but go to the source of the problem first, the radiant heating and cooling of the metal.