Louis Armstrong Stadium features an innovative design that encourages air flow while keeping rain off the court and spectators, making it the first naturally ventilated stadium with a retractable roof in the world. The design for the naturally ventilated bowl offers a unique solution that is true to the outdoor nature of the tournament by allowing play to continue during rain. On each side of the stadium, there will be façades that are covered with overlapping terra cotta louvers, optimally positioned to keep rain out, yet porous to maintain natural ventilation. The louvers allow air flow through the upper part of the building on the north and south elevations while shading spectators from the sun and protecting them from rain. The stadium has won numerous awards for its blend of sustainability, design excellence and commercial value.