Bale/cob is a cobbers approach to structural strawbale. As the bales are stacked, they are stabilized by chinking the seams with cob. Once the walls are complete and covered with a roof, both sides of the bales are covered in cob. In Anna's house the cob is 3-4" thick creating 20" walls. Only the corner bales are staked together and there are no external pins. We found that a box beam on top of the wall simplified construction and roof attachment.
While the technique is very new, it offers advantages over traditional strawbale or cob. Compared to cob it is much faster and offers excellent insulation. Compared to strawbale, the addition of thick cob layers inside and out makes it easier to prevent air inflitration and offers additional protection to the bales from moisture.
The technique was invented by Ianto Evans for cold climates and is now being taught at Cob Cottage in Oregon. While we were exposed to bale/cob in our cob workshop, we haven't had specific bale/cob training so its likely that our techniques differ from Ianto's. We recommend a workshop before you build.