Concrete Footings/Cob slipforms

Well not the most satisfying part of the process, but certainly a major accomplishment - getting the footings dug and the concrete poured, whew, glad to be done with that! The stress of having the concrete trucks squirm around the perimeter of the cobtagon was intense. Thanks to Jamel, Iain and Kevin for helping out! Then, finally, we’re getting to the more interesting part of building the forms in anticipation of finally making cob. Stay tuned!

The footing is 30” wide: 16” for cob, 4” for hempcrete on exterior, 4” to catch the slab on the inside, 4” extra, and 2” for R10 foam insulation as a thermal break from grade.

A major triumph! The footings are poured. Always stressful to have the huge concrete trucks on site, but everyone was awesome - thank you!

The cob gets lifted off the ground with one layer of block, filled with gravel. The block will get mastic as a capillary break to keep it dry.