In episode two of the first season of Building Green, host Kevin Contreras gets to the bottom of things, i.e., the Foundation. Follow Kevin step-by-step as he discovers green concrete and tours a straw bale mansion in Huntsville, Alabama. Also, find out why Kevin decides on a steel frame for his Santa Barbara green dream home and why even building code officials and insurance companies are starting to look favorably on straw bale houses. Want to know more about the green benefits of radiant floor heating, earthen floors and fly ash? Or perhaps about the experts and products featured on the show?