Here’s the latest from Patti. “People building with trash have relied on bottles filled with sand or adobe or film plastics to provide strength in infill walls. They have needed either cement mortar or chicken wire to hold the walls together. Some good info on previous projects is at: http://inspirationgreen.com/plastic-bottle-schools.html#jfafa3e6aa Because of the strength of … Read more
Roofs present a number of challenges, including how to provide adequate, affordable insulation so the home remains comfortable. Straw/clay, also called straw slip clay is one low tech, low cost solution. The basic process involves making thin slurry of clay and water and then mixing this with straw. The following information is quoted from An … Read more
Patti Stouter just tested her hyper-wattle wall system that’s she’s building at her home in New York. She’s published the results on her Hyper-wattle proposal at the $300 House design competition. She’s been in the top three consistently and there’s a very good chance she’ll win first place. I believe her project is the best … Read more
There’s a wide variety of fill material that can go in earthbags – road base, subsoil, gravel, crusher fines, etc. Use what’s low cost and locally available. But also consider durability and climate. Do you live in a very cold climate? Then consider using insulating materials in the bags. Do you live where flooding is … Read more
Major Breaking News. Tim, one of our readers, sent me some information the other day that explained how Bill McNulty has patented the process of making cast stone using natron salt (sodium carbonate) mixed with powdered granite, limestone, basalt, schist or sandstone mixed with water. This is a slightly different method than proposed by Professor … Read more
We’ve been discussing Professor Joseph Davidovits cast stone research at the Geopolymer Institute in hopes of applying this concept to earthbag building. You have to admit the possibility of building a house with dirt cheap, natural materials that turn to actual stone and become fireproof, insect proof, bulletproof, etc. is intriguing. [Update: two people have … Read more