What Are Houses Made of in the Atacama Desert?

In the Atacama—Earth’s driest non-polar desert—traditional and modern homes use adobe (sun-dried mud bricks).

Why Adobe?

• Thermal Mass: Thick walls absorb daytime heat, release it at night—natural air conditioning.
• Local Materials: Clay, sand, straw, water—all available on-site.
• Low Cost: Labor-intensive but material-free; accessible to low-income residents.
• Durability: In hyper-arid climate (near-zero rain), adobe lasts decades without erosion.

Modern Adaptations

Newer builds may add cement-stabilized blocks, corrugated metal roofs, or insulated panels, but adobe remains the cultural and practical backbone of Atacama architecture (e.g., San Pedro de Atacama village).