Low-Cost Reinforcement of Earthen Houses in Seismic Areas

[Most text quoted from the referenced article shown below.] Vernacular earthen houses located in seismic areas are at risk because of their inherent structural vulnerability. Adobe houses, for instance, are strong in compression but weak in tension. Earthquakes pull adobe houses apart, causing great loss of life and property. However, due to economic reasons, earth … Read more

Failed Plaster on Dome

The following report from an anonymous experienced builder in Haiti is about a new earthbag dome that’s already failing. My intent is not to bash these particular builders (I don’t even know who they are), but rather use this example as a learning opportunity to encourage good design. It’s great that people want to help … Read more

Earthen Hand Dome in Mali

Scott Howard organized a workshop in Dogon Country, Mali, last winter. He built this unique dome with the help of workshop participants and some of the villagers there. The majority of the structure was completed during the two week-long workshop. It is a catenary arc about 16.5 feet tall with a loft. Serving as a … Read more

Lowest Cost Plaster Mesh

Often plaster mesh is not required, but when it is needed it’s useful to know which type of plaster mesh is most affordable – chicken wire, plastic mesh or fishing net. I think stucco mesh is overkill and so it’s not covered here, although it’s often required by code and so you’ll have to plan … Read more

Part 2: Applying Earthen Plaster

Part 1: Earthen Plaster Summary covered the basics of clay, sand and mixing earthen plaster. This next post explains how to apply earthen plaster to earthbag walls. First, I want to say how incredibly simple this is. It’s as basic as smearing mud on the walls. But a little added know how will help everything … Read more