How is a Davis Cave earth sheltered home insulated?
A; Unlike a conventional basement, Davis Caves Construction insulates on the outside of the concrete between the shell and earth backfill. This eliminates thermal stress on the stucture and provides mass within the heated envelope. We use Extruded Polystyrene insulation due to its superior quality for this application. Most conventional basements have little or no insulation on the exterior walls. Thus, the walls are exposed to subfreezing air and ground temperatures. When the cold wall surface comes into contact with warmer, moisture-laden air, condensation and must odor are the result.
