Probably about eight years ago, I bought a shooting house that had never been set up from some guys over in Granger County. It was self-constructed of OSB and the corners were framed out with plywood… Not ideal but for the money, it was good. I painted it pretty heavily with outdoor paint, put tin over the shingles, setup using elevators, and it has lasted pretty good, but those plywood corners were really starting to delaminate. Knowing I was looking for something to apply to the outside to make last longer, my son found these plastic corrugated sheets that was used as some kind of shipping container. It's pretty heavy, close to half inch thick. Friday, I spent a good part of the day working on getting this applied to my older shooting house, and I believe it turned out pretty good. I still need to put on some paint to break up the solid gray sides and I need some gum rubber or something else to protect the window joints. It should last several more years now!