Most plywood is rotted and worthless by the time a building is torn down. However, the wiring, most metal, and even the concrete are often recycled. Perhaps t

Most plywood is rotted and worthless by the time a building is torn down. However, the wiring, most metal, and even the concrete are often recycled. Perhaps the plastic will be as well if it becomes economically viable. Right now I'm guessing they're using plastic already separated out by residents as part of a community recycling program. What I want to know is how they deal with dirty plastic? No one will want these plastic sheets if they smell like sour milk.