Usually consisting of two parallel plywood panels, the frame is then filled in with a layer of damp earth, which typically includes sand, gravel, clay, and a stabilizer. After this small layer is added, it is compressed into around half its original volume using a pneumatic tamper.

Is rammed earth expensive to build with?

Cost per m2 for a rammed earth home

The price range for the full build (to completion) on average can fall between $3,000 per m2 to $3,500 per m2.

How long do rammed earth walls last?

A Rammed earth house can easily sustain its integrity for 1000+ years. Primary factors affecting the cost of any project are design and site characteristics.