 Andersen's accomplishments were recognized by the U.S. Environmental Protection Agency and the U.S. Department of Energy in Washington, D.C., on April 26, 2017.In 1991, Andersen developed Fibrex, a composite made of wood fiber reclaimed from Andersen manufacturing operations and a thermoplastic polymer, some of which is also reclaimed.In 1992, Andersen patented (#5,486,553) its Fibrex® composite material technology.