Underground Construction can play an important role in cutting energy and construction costs of new developments. The earth itself provides natural walls and insulation, meaning less material needs to be utilized during construction. More importantly, the earth stays a constant 55 degrees year round below the frost line. By building underground you can save significant amounts of energy that would normally be spent on heating and cooling.




PDF Guide for building underground greenhouses

See also:
Permaculture
Construction
Garden
Plants