You'll soon be on your way to building your own unique outbuilding with this innovative design plan. No expensive forms or equipment are needed with earthbag building, and the technique is faster and easier than other earth-building styles - including cob, rammed-earth tire construction and adobe (if you have to make your own bricks). Earthbag buildings are more water-resistant than those made with straw bales, making them suitable for earth-bermed and below-grade structures. If your site is susceptible to flooding, earthbag building is one of the best options - after all, sandbags have a long history of use for flood control. Just use an appropriate fill material, such as gravel, in lower courses.