US Patent 7946124 Temperature controlled storage facilities and methods

A temperature controlled storage facility includes a room having an enclosed structure, and a plurality of multi-level storage zones within the room. Each of the storage zones include a supply of temperature controlled air having two outlets, one outlet positioned adjacent to a top area of the storage area, and a second outlet positioned adjacent to an aisle, wherein pressure barriers are created to prevent air flow from migrating to other storage areas or to a return duct without cooling (or heating) all of the inventory in the storage zone.