The art of building a shelter made from blocks of ice is passed on from father to son among the Inuit, native peoples who inhabit the northernmost regions of the planet. The circular plan, the entrance tunnel, the air outlet and the ice blocks form a structure where the heat generated inside melts a superficial layer of snow and seals the gaps, improving the thermal insulation of ice. In a storm, an igloo can be the difference between life and death and perhaps this is the most iconic and radical example of what it means to build with local materials, few tools and lots of knowledge. In this case, ice is all you have.
Taking advantage of abundant resources and local labor are key concepts for sustainable architecture, which are often overlooked at the expense of solutions replicated from other contexts. With new demands and technologies, the globalization of building materials and construction techniques, is there still room for local materials? More specifically in relation to 3D printed constructions, are we destined to erect them only in concrete?
When we searched for 3D printing on the Internet, we quickly came up with two main sets of results. The first is in relation to the boom of 3D-printed buildings in concrete, the most used building material in the world, but which is also responsible for high carbon emission rates. The second group concerns experimental and innovative construction projects on other planets.
