this shelter combines the flexibility of a seal and the full vehicle access of a shelter. it creates a tight seal between the building wall and the back of the vehicle. it effectively keeps the outside elements, such as t......this shelter combines the flexibility of a seal and the full vehicle access of a shelter. it creates a tight seal between the building wall and the back of the vehicle. it effectively keeps the outside elements, such as the cold, rain, sleet and snow, out of the warehouse, providing energy savings and added comfort for your employees. its unique steel frame components are covered by a 5-year warranty against rotting, cracking or warping.