Earthbag building is our most popular type of course. Come learn the theory and practice in any or all of four different in-depth courses in July and August. We will use the Hiperadobe method, which replaces the polypro bag with a strong mesh bag, further reducing materials, costs, and construction time. Four-day courses are in Sequim, WA, and Two-day courses are in Portland, Oregon. Sequim project will use passive annual heat storage. 10% discounts for attending any two of these courses.