Arthur Steinhafel (Art) has served as President, U.S. Windows & Doors, for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Mr. Steinhafel served as the President of the Ply Gem U.S. Windows and Door Group since August 2013. He joined Ply Gem in 2010, and prior to his appointment to President he had been Senior Vice President of Sales for Ply Gem’s U. S. Window and Door Group. Beforehand, he worked for Atrium Windows from 2008 – 2010 as President of the Central Region and for Peachtree Window Companies in various capacities from 1999 – 2007. Mr. Steinhafel received a B.S. in Industrial Technology from the University of Wisconsin-Stout.