For some cases we recommended using angle irons when you place the first row of hempcrete blocks.
This solution is preferred for outdoor insulation as an alternative to using substructures (of silico-limestone, cellular glass, etc.) when there is no adequate foundation. They can also be used for new builds to support suspended hempcrete block masonry. In general, the angle irons can sometimes be used as lintels or as a connector between two long, very thick lintels.