The Ellora Caves in Mumbai Harbour are a magnificent complex of rock-cut caves with artwork dating back to 1000 CE, but the formations have stood the test of time. Archaeologists have wondered why they were in such good condition. Was it a special kind of rock that served as the foundation? Were there ancient principles … Read more
When visitors to the San Luis Valley in Colorado stay at the Frontier Drive-Inn, they have access to a circle of unique structures that blend ancient materials with modern technology. Cylindrical silos with open air ceilings called Skylos are made out of locally-harvested adobe—sand, silt, clay, water, and straw. Designed and built by architect Ron … Read more
I recently received this message from Patti Stouter, who has been a long time advocate and experimenter with earthbags and other natural technologies, especially as a means for surviving earthquakes and other calamities: I am beginning a test shelter project of straw wattle that may be helpful in both Ukraine and Turkey, so this report … Read more
A Cob Construction Appendix has recently been approved for inclusion in the International Residential Building codes in the United States and a number of other countries. The new code requires builders to test their cob mixes for shrinkage, compressive strength, and, in some cases, modulus of rupture. The shrinkage test is the most straightforward and … Read more
You hear a lot about mass timber these days. Mass timber consists of engineered and compressed layers of young wood that are glued together for strength to create larger panels and beams. You can create larger beams and have more flexibility with mass timber. Depending on the engineering technique used, mass timber can be called … Read more
Inspired by the church missions built in the 18th century in California, Dave Wills thought “If they can last that long, it must be a solid way to build,” explaining why he looked into rammed earth to build his dream home in Philomath, Oregon. The walls are made from earth from a nearby quarry, a … Read more