Nylon Rollers Reaching Their Limit
Melissa runs newer than most of the region we cover - its homes are mostly 2015 builds against a roughly 2002 median elsewhere - and builder-grade doors from that era almost always shipped with plastic nylon rollers on stamped-steel stems. Those parts have a service life measured in years, not decades, and a door installed in 2015 is now sitting right at the age where those rollers start cracking, flat-spotting, or shedding little curls of plastic in the track.
