How Humidity Affects Garage Doors

Why Chattanooga's humid summers are quietly destroying your cables, springs and rollers—and what to do about it. Call 423-583-9355 anytime.

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.