ABSTRACT
The thermal flywheel effect of abundant uninsulated mass is ideally suited to address short term temperature swings. But what if there is a month long polar vortex or heat wave? In that circumstance having only mass will ensure the building is too cold or too hot. Only in locations where uncomfortable temperatures are projected to never be lengthy, does it make sense to not insulate. Those locations are few. For most of the planet it makes sense to use insulated rammed earth (see Figure 1).
