Earthbag/Stone Foundations

The most recent issue of The Last Straw journal (#60) has my article about earthbag/stone foundations. The following information is just a short excerpt. You can buy the full length article from The Last Straw. The design outlined here can be used with load-bearing and non load-bearing straw bale walls, earthbag walls, cob, adobe, cordwood … Read more

Green Retaining Walls

Geosynthetics Magazine is a valuable go-to source for technical earthbag articles. This is a great, free resource for serious earthbag builders, especially commercial builders. They have a new article about natural green facades on earthbag highway retaining walls. It’s surprisingly simple and effective. The retaining wall is not only strong, it also looks good because … Read more

Sustainable Earthbag Design Features

Earthbag structures are sustainable because they are safe (fire and mold resistant, structurally sound, nontoxic), durable, code approved, easy to maintain by homeowners, low cost ($10/sq.ft. is possible with small, simple designs), site specific, maximize solar gain, resistant to natural disasters such as floods, low embodied energy materials, use locally available resources, reduce energy consumption … Read more

Earth Building Report from Greece

I came across a report titled Earth Building: Models, Technical Aspects, Tests and Environmental Evaluation by Sargentis, Kapsalis and Symeonidis. The report was presented at the 11th International Conference on Environmental Science and Technology in September, 2009 in Greece. The report has a number of fascinating insights. The team designed and analyzed a model earthbag … Read more

Insulated Earthbag/Geotextile Basement Walls

This article describes a low cost method of building insulated basement walls without concrete, using geotextiles. Typical basement walls are expensive and use large amounts of concrete, a major contributor to global climate change. Concrete basement walls are typically built by contractors, because they require expensive forms and specialized knowledge. Plus, in cold climates they … Read more

Using Scoria for Earthbag Building

If you’ve been reading our blogs and websites, you’ll often see reference to scoria. Scoria, also known as lava rock, has numerous properties which make it a great building material. The key breakthrough for earthbag building was Kelly Hart’s house made with bags of scoria. His house stays comfortable year round in a very cold … Read more