John C Daley wrote:From memory bags are stacked at one end to create a buttress wall.
Then bags are packed on an angle so that the loop over the clear space, such that no bags are being supported by thye angled bags and so the vault is created to the other end.
I thought this might be the case too, but from the other pics on their website, it doesn't appear they bag all the way across, but they stop bagging and change techniques. Superadobe is used only for the buttress. I just don't know what technique they use to complete the "roof" of the vault.
This link has more pics:
calearth vault program
