On of the largest buildings on earth by volume, the Tropical Islands Resort (Formerly CargoLifter AG), features a Birdair PVC roof with liner, allowing the resort to remain open through all four seasons.
The Tropical Islands Resort is housed in one of the largest buildings on earth by volume. The building, which was converted in 2004 into a large indoor resort area, can accommodate up to 8,000 visitors a day. A Birdair PVC roof with liner covers a surface area of 440,000 square feet (40.88 m2), allowing the resort to remain open through all four seasons.