2026-03-22 7 min read
If you've lived in Kenansville for any amount of time, you know what August feels like. thick, heavy air that hangs around from sunup to sundown. According to climate data, June, August, and September bring average relative humidity levels around 79% here in Duplin County, and the town accumulates nearly 36 inches of rainfall spread across roughly 169 rain days per year. That's a lot of moisture, and your garage door is sitting right in the middle of it.
Most homeowners don't think about their garage door until it stops working. But the truth is, that humidity is working on your hardware every single day. quietly accelerating rust, stiffening moving parts, and shortening the lifespan of springs that were already dealing with normal wear. Understanding what's happening is the first step to keeping repair bills manageable.
The most immediate victim of our Kenansville summers is the metal hardware. springs, hinges, rollers, and tracks. Elevated humidity fosters the development of rust and corrosion on these components, and it's not just a cosmetic issue. Once rust takes hold on a spring or track, it creates friction, weakens the metal's structural integrity, and can lead to sudden, unsafe failures.
Torsion and extension springs are already under enormous mechanical stress every time your door opens or closes. Standard springs are rated for roughly 10,000 cycles. that's years of daily use under normal conditions. But in high-humidity areas like ours, springs can fail well before that if they aren't protected. Rust and humidity can shorten spring life significantly, and in coastal or high-humidity areas, springs typically fail sooner if they are not protected.
Signs your springs may be suffering from humidity damage: - Visible orange or reddish rust streaks on the coils, The door feels heavier than usual when lifted manually, A loud popping or grinding sound during operation, Uneven movement. one side rising faster than the other
If you notice any of these, don't wait. A broken spring is a safety issue, not just an inconvenience. Check out our frequently asked questions for more on what to expect with spring wear and replacement.
When humidity is high, rollers and hinges can become stiff, making the door harder to open or close. Rust on tracks creates friction, leading to noisy or jerky door movement. If you're hearing grinding or squealing that wasn't there six months ago, moisture working into your track system is a likely culprit.
Some of the older brick and wood-frame homes throughout Kenansville and out toward Faison were built with wood-paneled garage doors that have real character. but wood and humidity are a rough combination. Wooden garage doors tend to absorb moisture, which can cause them to warp or suffer from structural damage over time. If your door is sticking seasonally or panels have started to bow, moisture absorption is almost certainly the cause.
The good news is that most humidity-related damage is preventable with consistent, simple maintenance. Here's what actually works:
Applying a silicone-based lubricant to springs, hinges, rollers, and tracks is one of the most effective defenses against moisture-induced corrosion. Silicone spray repels water rather than absorbing it, unlike standard WD-40 or general-purpose oils. Lubricate your door's moving parts every three to six months. more often during the wettest months of summer.
Avoid spraying lubricant on the tracks themselves. The tracks should stay clean and dry; lubrication belongs on the rollers, hinges, and springs only.
The rubber seal along the bottom of your door (and the stops along the sides) keeps driving rain from entering your garage. Once weatherstripping cracks, hardens, or compresses flat, it stops doing its job. and moisture gets in. Check it every spring before our rainy season picks up, and replace it when it no longer seals flush to the ground.
Speaking of spring prep, our guide on preparing your garage door for spring walks through a full seasonal checklist that pairs well with these humidity-focused tips.
Don't wait for rust to spread. At the first sign of surface rust on springs or hinges, clean the area with a wire brush and apply a rust-inhibiting spray before lubricating. If rust has already pitted the metal or you can see gaps or cracks in a spring coil, that component needs to be replaced. not patched.
A garage that traps humid air is harder on all the hardware inside it. Ensuring your garage has proper ventilation to reduce excess humidity helps slow corrosion across the board. Even cracking a side door periodically during dry spells helps balance the interior moisture level.
A professional eye catches things that are easy to miss. micro-cracks in spring coils, early-stage track corrosion, or weatherstripping that looks okay but has lost its flexibility. Annual tune-ups are especially valuable here in Duplin County where the summer humidity season is long. View our services to see what a maintenance visit includes.
If your door is making new noises, moving unevenly, or a spring has already broken, this is not a DIY situation. Springs are under high tension, and improper handling can cause serious injury. The team at Kenansville Garage Doors serves homeowners throughout the area. from right here in town out to Warsaw and Clinton. and can diagnose humidity-related wear before it becomes an emergency repair.
Don't wait for a broken spring on a Monday morning when you're already running late. A quick inspection now is far cheaper than a full spring replacement under pressure. Reach out and schedule a visit at a time that works for you.
Q: How often should I lubricate my garage door springs in a humid climate like Kenansville? A: Every three to six months is a good baseline, but if you notice stiffness or squeaking sooner, go ahead and lubricate. Summer is the most important time. humidity peaks in August and moisture exposure is highest. Use a silicone-based spray rather than a petroleum-based oil, which can attract dirt and gum up the hardware over time.
Q: My garage door is making a grinding noise only in summer. Is humidity the cause? A: It's a strong possibility. Humidity causes metal components to expand slightly and can accelerate rust buildup on rollers and tracks, creating friction and that grinding sound. Start by cleaning the tracks and lubricating the rollers and hinges. If the noise persists or the door moves unevenly, have a technician inspect the springs and hardware for corrosion damage.
Q: Can a rusted spring just be cleaned and reused, or does it need to be replaced? A: Surface rust that hasn't compromised the coil's structure can sometimes be treated and protected. But if you see pitting, flaking, gaps in the coil, or if the spring has already lost tension, replacement is the only safe option. Springs under tension are dangerous to handle. always have a professional make that call.