The Rolling Steel Tent is pretty well insulated. Two-and-a-quarter inches of foam board in the roof, an inch-and-a-half in the walls. That usually results in a ten to fifteen degree difference from the outside temperature.
However, in cooler seasons, like autumn, when I’m glad the sun is up and warming things, the Rolling Steel Tent wants to maintain its lower overnight temperature.
In the summer, when the insulation makes a 90 degree day a slightly more tolerable 80 degrees, it wants to hold onto that 80 degrees into the night when the outside temperature is much more pleasant.
This is why Jason Odom, author of Vanabode, is against insulation. The van takes longer to warm up and cool down. True, but insulation also helps keep things warmer and cooler when I want it to. So it’s a tradeoff. And there are solutions. I can turn on some heat or go outside on mornings like today. I can sleep with the windows and door open on summer nights. Or, in the spirit of living closer to nature, I can just tough it out.