Innovative Cardboard Construction: The Netherlands’ Modular House Built with 24 Layers of Rolled Cardboard

Interesting. Sounds like it’d burn up pretty quickly though. And cockroaches and other beetles like to eat cardboard.

People used to insulate modest homes (tar paper shacks etc) with paper, cardboard, fabric and the like, any found items really. Mold is a real problem though. Unless they can seal it perfectly, it seems like a problem