The Bayer Headquarters is located at the Greater Toronto Airport Authority’s Toronto Pearson International Airport. The facility has many features that make corporate Bayer a great place to work, including an ?Outback? walking trail, deluxe fitness facilities, and an 8,500 sf green roof.Completed in October 2007, this Sedum-Allium roof is an extensive vegetated cover. In mid October, 2009, a 6,500 sf cool roof was being installed on a neighboring roof.