The most striking feature of the Green family’s house is the stone-like blocks made of papercrete. Papercrete is a construction material composed of pulped paper, clay, and cement and has existed since the early 1920s, but has never been used extensively. As such, the wall is an experiment and consequently is protected by a big roof and does not carry any load.
Papercrete is a construction material composed of pulped paper, clay, and cement.