Doors from this build era typically used nylon-and-steel rollers rated for a certain number of open-close cycles, not for decades of Illinois winters. Romeoville sits in the same cold, moderate climate band as the rest of the area we work - real freeze-thaw swings through the winter months. That cycling dries out the grease in the roller stem, steel rollers develop flat spots where they sit against cold rails overnight, and the stem itself can snap off at the hinge when a door with frozen hardware gets forced open. We see this cluster of late-1990s doors fail the same way: rollers that look fine from the driveway but grind and bind the moment the track temperature drops. It's not a defect specific to any one house, it's what happens to this generation of roller hardware after enough winters in this part of Illinois.