In a multi-silo distribution and storage system, the regions between the stationary and transport batchers, and between transport batcher and storage bin are isolated during asphalt discharge with a bellows automatically deployed when clamshell gates of the stationary and transport batchers are opened. The storage bin is provided with a sealing door that lifts vertically for unsealing and slides horizontally to permit access to the bin interior for receiving asphalt discharged from the transport batcher. After registry above the top bin opening, the sealing door is forced downwardly to create a tight seal. For prolonged storage, a fluid seal isolates the lower discharge gate of the storage bin. Steam is delivered to the stored asphalt and bin interior to displace atmospheric oxygen vented through a valve in the bin top. An oxygen sensor linked to a process controller monitors the oxygen level within the storage bin.