Not long after completing the New American Home 2007, a green-built show home at last year’s International Builders’ Show in Orlando, Fla., veteran builder Carmen Domínguez realized the true meaning of her work. A 13-year-old boy approached her while she toured the home. “He said, ‘Thank you for doing this,’ ”Domínguez recalls, her otherwise exuberant tone softening as she retells the story. That moment deepened her commitment to bring what she learned from her first green home into the future of her business, and changed the way she looked at home building forever.