An Introduction to Ecological Building Techniques Including Rubble Trench and Rock Foundation, Wattle and Daub, Earth Bags, Cob, Natural Plasters, and Rocket Mass Heaters! May 18th — May 25th, 2019 Intro to Ecological Construction For thousands of years, people have been building their homes out of the dirt beneath their feet. Natural and vernacular building techniques have roots in every culture around the world, but share the distinction of using local materials, being energy efficient, and having a low ecological footprint.…