How Fall Creek's Wet Climate Destroys Weatherstripping: And What To Do About It
2026-04-23 6 min read
Fall Creek gets months of persistent rain and high humidity every year. The numbers back it up. January through March average relative humidity around 86%, and the rain doesn't really let up until late spring. If you live out here near the reservoir or up along the creek road, you already know what that does to wood fences, door frames, and deck boards. What you might not have thought about is what it does to your garage door weatherstripping.
Weatherstripping is the unsung hero of your garage door system. It seals out rain, wind, pests, and cold air. But it's also made of rubber and vinyl. materials that take a beating from UV exposure in summer and sustained moisture in winter. In a climate like Fall Creek's, weatherstripping tends to fail faster than most homeowners expect.
Why Weatherstripping Matters More Here Than in Drier Climates
In a drier region, degraded weatherstripping is mostly an inconvenience. a small draft, maybe a little dust under the door. Here, a failed bottom seal or cracked side strip means water intrusion every time it rains. That moisture gets into your garage floor, under stored equipment, into wall insulation, and along the door frame itself. Over time, repeated soaking and drying cycles rot wood framing and invite mold.
Homeowners across Lane County. from Lowell to Cottage Grove. deal with this more than they realize, and the fix is usually straightforward once you know what to look for.
The Four Types of Weatherstripping on Your Garage Door
Understanding what you have makes it easier to inspect and replace the right piece.
Bottom seal (door sweep): The rubber strip along the bottom of the door that contacts the ground when closed. This takes the most abuse. it drags across concrete, gets compressed thousands of times, and sits in standing water after rain. It's also the most commonly replaced piece.
Top seal: A strip along the top of the door opening that seals against the header. Less exposed than the bottom seal, but it can pull away from the frame in older doors or warp from moisture.
Side seals (door stops): The vertical rubber or vinyl strips on each side of the door opening. These compress against the door when it closes. If you notice daylight along the sides when the door is shut, the side seals are either compressed flat or have shrunk.
Threshold seal: This sits on the floor itself rather than on the door, creating a raised barrier the door closes against. Not all garages have one, but they're especially worth adding in Fall Creek where ground-level water intrusion is a real concern after heavy rain.
How To Inspect Your Weatherstripping
You don't need any tools for a basic inspection. Close the garage door completely and walk around the interior perimeter with a flashlight. On a bright day, look for daylight seeping in at the edges. any light gap is a water and air gap. Also look for:
- Cracks or splits in the rubber, especially along the bottom seal - Hardening or brittleness. healthy weatherstripping should flex when you squeeze it; stiff rubber has lost its elasticity and won't seal properly - Compression damage. a bottom seal that's been flattened permanently won't spring back to fill the gap - Mold or algae growth on the seal surface. a sign it's been holding moisture rather than shedding it
If your garage has a musty smell or you find moisture on the floor near the door after rain, don't assume it's condensation. Check the seals first. You can also review our guide on preparing your garage door for cold weather for additional seasonal inspection tips that pair well with a weatherstripping check.
Replacing the Bottom Seal: What To Know
Bottom seals come in a few profiles. T-slot, bulb, and bead are the most common. The profile that fits your door depends on the retainer channel at the bottom of your door panel. Before buying a replacement, either bring the old seal to the hardware store or take a photo of the retainer channel.
For a standard residential door, a new bottom seal costs $15,$40 in materials, and installation is a reasonable DIY project for most homeowners. The door needs to be in the down position, the old seal slides or pries out of the retainer, and the new one slides in. Some seals are secured with screws at the ends. make sure to reinstall those so the seal doesn't walk out of the channel over time.
If you're not sure which seal type fits your door, the Fall Creek Garage Doors team can identify it during a service call and install the correct replacement while they're already at your home.
Side and Top Seal Replacement
Side seals are typically stapled or nailed to the door stop trim. Replacement involves removing the old seal, which is usually just a matter of pulling out the fasteners, and then stapling or nailing the new piece in place. Use a staple gun and stainless steel staples to resist rust. standard steel staples corrode quickly in this climate and can leave rust streaks on your door frame.
Top seals sometimes peel away from the header due to old adhesive or frame movement. Clean the surface thoroughly before applying a new seal. dirty or wet surfaces won't hold adhesive properly.
When To Call a Pro Instead of DIYing
Weatherstripping replacement is one of the more approachable DIY garage tasks, but there are situations where it makes sense to have someone come out:
- If the door frame itself shows signs of rot or moisture damage, the framing may need repair before new seals will be effective, If the door is sitting unevenly and not closing flush. that's often a spring or track alignment issue, not a weatherstripping problem, If you're also noticing issues with the door's operation (sluggish opening, unusual noises), it's worth having a full inspection done at the same time. check the FAQ page for common questions about what's covered in a standard service visit
For most Fall Creek homeowners, a weatherstripping inspection once a year. ideally in early fall before the rainy season kicks in. is enough to stay ahead of the problem. Catch it before the November rains arrive and you'll save yourself a wet garage floor and a bigger repair down the road.
Frequently Asked Questions
How often should I replace garage door weatherstripping in a wet climate like Fall Creek?
In a high-humidity environment with Oregon's long rainy season, plan to inspect weatherstripping every fall and expect to replace the bottom seal every 3 to 5 years. Side and top seals can last longer. 5 to 7 years. but check them annually for cracking and loss of flexibility.
My garage floor stays damp even after replacing the bottom seal. What's going on?
If moisture persists after replacing the bottom seal, check whether water is entering through the sides or top of the door opening, or whether you're dealing with concrete condensation. which happens when cold concrete meets warm, humid air. A threshold seal added at the floor level can help with ground-level intrusion, and improving garage ventilation addresses condensation. If you're not sure which issue you have, contact us for an assessment.
Does damaged weatherstripping affect my energy bill?
Yes, particularly if your garage is attached to the house. Air leaks around the garage door allow cold, damp air in during winter, which makes your home harder to heat. Combined with an uninsulated door, the effect compounds. Learn more about whether upgrading to an insulated door makes sense for your home in our post on the ROI of insulated doors.