Essentially used tires and then a straw/sand/clay mix in between - at least that is what it looks like in between as a lot of times it is just packed mud. VERY efficient but not mainstream and laborious to build. The wife wanted to build one but I have bigger and better things in mind. Not made of tires so I'll keep it off this thread. (hint: concrete geodesic dome)
Apparently it's illegal here to use tires for landscaping, planters etc, so I doubt I could get away with a tire and mud igloo either.
I remember The RoadWarrior..To understand who he was, you have to go back to another time..the world was powered by the black fuel & the desert sprouted great cities..Gone now, swept away..two mighty warrior tribes went to war & touched off a blaze which engulfed them all. Without fuel, they were nothing..thundering machines sputtered & stopped..Only those mobile enough to scavenge, brutal enough to pillage would survive. The gangs took over the highways, ready to wage war for a tank of juice