Tequesta sits in the same mild, humid coastal band as the rest of the area, so the usual culprits are moisture and salt air working on hardware that's had decades to corrode rather than any one big weather event. On a door this old, the bigger issue is metal fatigue - springs and cables rated for a lighter original panel, cycling for close to fifty years, finally giving out. Higher household income in this pocket (median $103,036, above the wider area's $86,562) shows up less in the housing age and more in upgrade choices - insulated panels, quieter belt drives, battery backup openers - retrofitted onto frames that are still the original 1970s build. The bones are old even where the fittings aren't.