For those of you who aren’t familiar with coroplast, it is the stuff that they make all those campaign signs out of, it basically looks like corrugated cardboard, but made out of plastic. I have always like this stuff because of it’s properties. First off, it is cheap, it is really durable, you can buy it in many sizes including 4′ x8′ sheets. It is flexible but really strong, since it is made out of plastic it is water proof and cleans really easy, it’s also pretty light and the air gap gives some insulation properties.
So when I saw this sub $100 22lb house for homeless or emergency recovery shelter I was pretty excited. In 50″ stack of coroplast sheets you can build 50 houses, assemble them quickly with zip strips, it is pretty amazing. The other thing I realized is that these things can be easy to clean. In the event of disasters or homeless use these things will get pretty dirty over time, but you would be able to take a standard garden sprayer with a bleach water mix and sanitize the thing in 2-3 minutes.