Wrapping walls in mesh – starting under the first course of bags and going over the top of the bond beam – is a simple way to add a great deal of extra strength to your earthbag structure. Fishing net and plastic lath are ideal for wet climates. Galvanized wire lath or chicken wire is … Read more
My previous post described an alternative bond beam for curved walls; this post is on straight walls. Conventional reinforced concrete bond beams may not be affordable or the materials unavailable. Or maybe you want to reduce or avoid using cement. Here’s one low-tech, low-cost bond beam design. It’s even possible to use salvaged materials for … Read more
Forming bond beams for roundhouses and other curved structures is somewhat difficult. Here’s a brief description of an alternative bond beam that requires little or no formwork. It’s made with two layers of long poly tubes filled with stabilized soil (non-seismic zones) or concrete (seismic zones). Tubes could be filled 3″-4″ thick to save on … Read more
Ever since the earthquake in Haiti we have been inundated with requests for information about using earthbags for reconstruction efforts. Owen Geiger and I have joined with Patti Stouter to assemble a coherent response to this need that is based on our understanding of the strengths and weaknesses of earthbag building, coupled with some knowledge … Read more
Using a standard-sized module can simplify the building design process. An even two foot module, for instance, is easy to plot on graph paper. This makes it easier to draw plans and calculate materials and costs. Another benefit of 24” earthbag modules is increased overlap between courses. Many earthbag builders just fold over the ends … Read more
From time to time we’ll post answers to readers’ questions. Q: How do earthbag structures compare to military sand bag bunkers? A: We know sand bags have been in use by the military for a very long time, possibly as long as 250 years. See Earthbag History Footnote. We also know sand bags (earthbags) are … Read more