How Tennessee Humidity Affects Your Garage Door

Why Chattanooga's humid summers are quietly destroying your cables, springs and rollers—and what to do about it.

Humidity is hard on metal Chattanooga's average summer humidity sits in the 70–80% range. That moisture sneaks between coils on torsion springs and into the strands of lift cables, where rust starts and never stops.

What we see - Pitted spring coils that snap years early - Frayed cables at the bottom bracket - Rusted hinges that squeal and freeze - Aluminum tracks that pit and bind rollers

How to fight it 1. **Annual lube** with a synthetic spray (not WD-40) 2. **Galvanized cables** when you replace 3. **Powder-coated hardware** on premium installs 4. **Yearly tune-ups**—we catch rust before it costs you a spring

A $129 tune-up almost always pays for itself by extending hardware life 2–3 years.