Dallas Cowboys Stadium Roof Overview
The roof at AT&T Stadium in Arlington, Texas, is a retractable design engineered to open and close in roughly 12 to 15 minutes, covering approximately 660,000 square feet of the seating bowl. The structure is one of the largest retractable roofs in North America and was designed to accommodate NFL games, major concerts, and other events while protecting fans from weather and heat. The roof system uses a combination of steel trusses, cable-supported panels, and large sliding mechanisms that move along rails, with panels weighing several hundred tons each. Construction of the stadium, which includes the roof, was completed in 2009 at a total project cost of about $1.3 billion, with the roof contributing a significant share of that figure. The design was led by architectural firm HKS, Inc., and the structural engineering was handled by Walter P Moore, with construction management by Manhattan Construction Company. The roof has been cited in industry analyses as a benchmark for large-scale retractable roof systems in sports venues Forbes.
The retractable roof is composed of two main panels that slide open along the length of the stadium, revealing a large opening above the field. Each panel is covered with a translucent ETFE (ethylene tetrafluoroethylene) polymer material that allows natural light in while blocking harmful UV radiation and reducing glare. ETFE is a lightweight, durable material commonly used in modern stadium roofs and architectural facades because it can withstand extreme temperatures and weather conditions. The material also helps reduce the need for artificial lighting during daytime events, which can lower energy costs for the stadium operator. The roof's control systems are automated and monitored by a dedicated operations team that uses real-time weather data to decide when to open or close the panels. AT&T Stadium management has stated that the roof is closed for most major events, including Dallas Cowboys home games and the Super Bowl, to maintain climate control and fan comfort AT&T Stadium Official Site.
Roof Engineering, Materials, and Retractable System Details
The retractable roof system at AT&T Stadium was designed by engineering firms specializing in large-span structures, with the sliding mechanism relying on rail-guided platforms and heavy-duty motors. The roof panels are supported by a network of steel trusses and cables that distribute loads evenly across the stadium structure, allowing the roof to move without compromising the integrity of the building. The system includes weather sensors, wind gauges, and automated controls that can close the roof within minutes if conditions change during an event. The engineering team faced challenges related to the stadium's large seating capacity, which exceeds 80,000 for football, requiring the roof to cover a vast area while remaining lightweight enough to operate efficiently. The design has been recognized in architectural and engineering publications for its scale and complexity ESA Rosetta Archive.
ETFE, the primary material used for the roof panels, is a fluoropolymer known for its high strength-to-weight ratio and transparency. It is significantly lighter than traditional glass, reducing the structural load on the roof support system and making the retractable mechanism more energy-efficient. ETFE panels are also self-cleaning, resistant to corrosion, and can last for decades with minimal maintenance, which lowers long-term operating costs for the stadium. The material has been used in other high-profile projects, including the Eden Project in the United Kingdom and various modern stadium roofs worldwide. The use of ETFE at AT&T Stadium aligns with broader trends in stadium design toward lightweight, durable, and energy-efficient building envelopes Tesla.