beam framework provides support (although some builders have used Durisol or Faswall blocks), and the bales are used exclusively as infill. Often they wrap outside the posts, keeping the posts warm and free from condensation. The infill methods allows more flexibility in design, permitting taller buildings, and is considerably easier to obtain approvals for from local building inspectors. Various kinds of roofs can be applied, with some also incorporating straw as ceiling insulation.