Group 3 buildings are industrial, utilitarian, and high-use facilities. Buildings include hangars, maintenance facilities, and supply and storage facilities. Building designs use highly durable materials and modest detailing to endure heavy wear and frequency of use. Understated architectural features and simplified detailing may be used at main entrance façades. Although Group 3 buildings are a lower tier than other building types with simplified detail and materials, certain mission-specific uses, such as hangars, can be the most visible and at times, symbolic structures on the Installation. As such, these buildings should be treated with the same level of design character as the other building types.