February 9, 2009, By Drew Millhon and Lauren Sher, Warsaw, IN

Beneath the migrating geese and across the street from the veterans’ hall in St. John, Ind., a gray and white barn is green with ideas. It belongs to Bill Keith, an eco-minded father of four who turned his vision into a profitable, environmentally friendly company.

“I went from 25 years of sitting on the roof to now selling my product to roofers all over the world; it’s exciting,” he said.

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