“The foundation is the only thing where it would make sense to get [commercial] material. ...[T]he regulations in the camp are that there should be no lasting material there. So... you have to make {{w|rammed earth}} foundations, which a lot of houses in Bangladesh... have, also some 2-story houses. It's not that strong.., but... it's possible. It's doable. It just needs to be... a thick rammed earth foundation, and... the walls also have to be comparatively thick.”