Johns Manville, a Berkshire Hathaway company and global building products manufacturer, has named Mary Rhinehart its new president and CEO. She replaces Todd Raba who held the post for five years. Prior to the CEO role, Rhinehart was the senior vice president and CFO of Johns Manville. She has been with the company since 1979. Her background includes management and bottom-line responsibility for a business unit, global treasury and strategic business development, including directing a variety of acquisition activities. She has held finance leadership roles in most of JM’s businesses.