Asphalt Day is observed on May 15 to celebrate the economical and efficient uses of liquid asphalt in roofing and paving. This annual event highlights the contributions of the Asphalt Institute trade association and the asphalt industry worldwide. It aims to increase awareness of asphalt roofing and paving products, showcasing their resiliency and sustainability. In the United States, 94 percent of roads and 80 percent of residential roofs utilize asphalt, making it a common material in daily life. The day emphasizes the environmental benefits of asphalt, which is the most recycled product in the U.S., and promotes advancements towards net zero carbon emissions in asphalt pavements. Typical customs may include educational activities and discussions about the importance of asphalt in infrastructure and its role in disaster recovery.