Most styrene products are made up of 90% air, making them difficult and expensive to recycle. #polystyrene #recycling #waste | Insider Science

How it works: ​Giant foam blocks (made of Expanded Polystyrene or Styrofoam) are stacked like massive LEGO bricks. ​Steel rebar is placed inside the hollow core. ​Concrete is poured into the forms. ​The foam stays permanently in place, acting as powerful insulation on both sides of the concrete wall. The result is a wall that is far stronger and more durable than traditional construction, offering superior insulation to keep your home warm in winter and cool in summer. Plus, ICF walls can better