From time to time we answer reader’s questions. Q: Why aren’t people making roofs from earth using domes or Nubian vaults? In impoverished areas the cost of a tin roof is sometimes a year’s salary. A: Domes and vaults evolved in extremely dry areas of the Middle East, where wood was scarce and lack of … Read more
I just found these new videos on YouTube and know very little about them. I’m eager to learn how they propose to build the large vaults, because these are very difficult to build with earthbags. The first one is an animated video showing how to build a dome. The second video is a fly-through of … Read more
Patti Stouter has devised a new way of reinforcing earthbag walls in seismic regions. Cement mortar is inserted in some joints between bags to lock the barbed wire in place and increase tensile strength. Mortar isn’t needed between every bag, and most likely every course doesn’t need this extra reinforcement. Designers/engineers could strategically place the … Read more
I am pleased to report that the Barrel’s Hope project, based in Florida, has finished their first earthbag house project in Haiti and are hard at work on the second. It is a very basic rectangular one room structure with a metal shed roof. We have been assisting them with their design choices so it … Read more
The current newsletter from CalEarth describes how they have been designing an earthbag shelter/home prototype for use in Haiti. This structure, consisting of a 10 ft. main dome surrounded by 3 apses (a 7 ft. sleeping apse, a 5 ft. fire cooking apse with storage below, and a 5 ft. apse that can be used … 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