Any construction begins with the foundation. In principle, it does not differ from other foundations of casting.
Speaking about the insulation, here according to German standards for the thickness of mineral wool of twenty centimeters, up to five centimeters of foam are used. Touching the energy conservation, to heed one square meter of area, three liters of fuel per year leaves, this is about 450 liters for 150 m in other words of the gas cylinder for one month.