We have demonstrated $4/sq. ft. costs for lifetime building in the last post – based on using on-site earth as a low cost building material. When our CEB machine is optimized to 3000 bricks per day, this option becomes really attractive as a viable option for global village construction.
When our sawmill comes on-line, we will eliminate more of the costs – roof truss members, roof planks, top plate, plus window and door framing lumber.
Further cost optimization is possible – without sacrificing any building performance. If we do the work in the summer, we will eliminate the need for cement mortar – and go back to earth slurry as the mortar of choice. From our experience with the present CEB addition, we conclude that if we have sufficient roof overhangs on the building, along with proper earth berming – then soil around the foundation will be dry – and will become more dry over time – such that additional moisture protection measures will not be necessary on the foundation and outside walls. Plus, we are convinced that cement-dipped CEB blocks can be used as a substitute for rock foundations – so we will also eliminate the cost of gravel. The roof can be sheathed/shingled, and soil cement may be used to fill any questionable cracks. Nonstructural, insulating CEB block can be used to reduce the insulation costs.
The new bill of materials for the ~1000 sq ft structure look like a whopping $430 total:

This is 43 cents per square foot. People, this is radical, and hints at abundance. Just by having the infrastructure consisting of a CEB press, sawmill, and LifeTrac for power and earth moving – we can produce housing at under $1/sq ft in outsourced building materials. (more…)
We have demonstrated $4/sq. ft. costs for lifetime building in the last post – based on using on-site earth as a low cost building material. When our CEB machine is optimized to 3000 bricks per day, this option becomes really attractive as a viable option for global village construction.
When our sawmill comes on-line, we ...
Categories:
Compressed Earth Block Press,
Global Village Construction Set,
Natural Building
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