I live in Texas, and it get hotter than ^(&* in the summer. I have been thinking about building some sort of heavily insulated box or room to store long term storage items in the attic. Has anyone heard of this being done? Do you think it would be easy to create a room that would keep it at reasonable temps? I bet it gets 120-130 degrees up there easy. I remember I used to work at a plant nursery as a kid. They had the back end of a refrigerator truck there they used to store seed in. It would be 100+ in the summer and very comfortable in that refrigerator truck (fridge was shut off so it was basically just an insulated box). It was out in the open in the sun. If I could create something like that up there (obviously not metal) It think i would be OK... but I am concerned about cost and weight. Thoughts?