Lisbon Cork Co. Ltd. Fine Cork Flooring combines the beauty of a natural material with the comfort of a cushioned surface. It is durable, acoustical, and a great insulator. The bark of the cork tree is peeled without destroying the tree and it grows back within nine years, ready to be harvested again. Warm to the touch and resilient, cork floors are a joy to live with. Cork is considered a green product because the same tree can be harvested numerous times.