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
Our earthbag design team is busy creating home and shelter designs, as well as innovative building ideas for the reconstruction effort in Haiti. (See Kelly Hart’s Alternative Bond Beam and Lintel system, for one example.) As you’re probably aware, conventional bond beams and foundations are made with reinforced concrete, but these are costly, labor intensive … Read more
Here’s a great shelter design by Delani that was posted at Core 77 as part of a recent shelter competition. Sometimes the best ideas are the simplest, and this design is exquisite because of its simplicity. That means it’s inexpensive and easy to build. And no doubt about it, it will work structurally. (However, it … Read more
The most common size bag for earthbag (sand bag) building measures about 18”x30” measured when empty. This is often called a 50 pound bag, since these bags are used to store 50 lb. of grain and feed. When filled, this size creates walls about 15”-16” wide. This is a good size for earthbag building because … Read more
A hybrid earthbag and pallet building would provide excellent protection from the weather and would be virtually free to build with debris and discarded shipping pallets. The addition of rain water collection, humanure composting, and simple solar oven(s) would provide fresh water and help keep human waste safely out of the way. Any additional materials … Read more
From time to time we’ll post answers to reader’s questions. Q: What methods can be used to close the ends of earthbags? A: Most people fold the bag ends over and then butt the folded end tight against the previous bag. (This keeps the contents intact and prevents spillage.) That’s the fastest way. If money … Read more