Do not zigzag barbed wire between courses of bags, because this will lessen its tensile strength. A load (stress) on the structure, such as a hurricane, earthquake or differential settling, would tend to pull the structure apart as the slack is taken out of the wire. Zigzagging the barbed wire would provide more attachment points, … Read more
Do earthbags really become hard as rock or is this exaggeration? I did a little experiment on the roundhouse we’re currently building to find out. The answer depends primarily on the choice of fill material and the degree of compaction. The moisture content and curing process also play a role. We used road base – … Read more
Here’s a drawing of my favorite earthbag slider that makes it easy to place bags on the wall without getting hooked on the barbed wire. If you want to make one, start out by cutting a sheet of 1/16th thick steel about 13 inches wide by 16” long. Tack weld a piece of 1” by … Read more
Square corners and tunnel-like window and door openings just don’t look right to me on natural homes. Gently curved openings and corners are much more elegant. Rounded openings have numerous advantages. Around windows, they allow more light into the home and improve the view. And they add a little extra space around doors, making it … 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
I’ve seen some photos lately of structures with ‘thin bags’ where the earthbags were not filled all the way. My recommendation is to tamp the contents lightly as the bag is being filled. This just takes seconds and ensures the bag is filled to capacity so you need fewer bags. Here’s the process: 1. Fill … Read more