Are Precast Double Tees Prestressed?

Are Precast Double Tees Prestressed? Precast, prestressed concrete double tees offer many advantages, making them suitable for construction of elevated parking decks as well as the substrate for waterproofing, roofing systems and buildings. Is double tee prestressed? A Double Tee is a pre-stressed concrete product used for parking structures, roofs and floors, where long spans