RV Sidewall & Delamination Repair in Jensen Beach
Bubbles, soft spots, and separating fiberglass on your RV sidewalls. We repair delamination before it destroys the structure underneath.
772-356-0328TL;DR
- Fiberglass delamination repair: injection bonding and panel replacement
- Aluminum sidewall dent and damage repair
- Cost: $300 to $4,000+ depending on extent and wall type
- Jensen Beach's heat creates steam pressure that accelerates delamination
- On-site service. Call 772-356-0328 for assessment.
Delamination is the bubbling, waviness, or separation of the fiberglass outer skin from the plywood substrate underneath your RV's sidewalls. It's the most feared exterior problem in the RV world because it signals water intrusion, structural degradation, and significant value loss. And Jensen Beach is one of the worst places in the country for it.
Here's what happens. Water gets behind the fiberglass skin through a failed seal (around a window, light, trim piece, or roof edge). The luan plywood substrate absorbs the water. When Jensen Beach's summer heat bakes the sidewall, the trapped moisture turns to steam. That steam pressure pushes the fiberglass away from the substrate, creating the bubbles and waves you see on the surface. Once it starts, it spreads.
Scott Marlins has repaired delamination on RVs ranging from small travel trailers to 40-foot Class A motorhomes. The key is catching it early. A small bubble that's repaired immediately costs a few hundred dollars. The same bubble left for a season in Jensen Beach can grow into a full panel failure that costs thousands.
How to Spot Delamination Early
Walk along the side of your RV and run your hand across the fiberglass surface. Healthy fiberglass feels completely smooth and firm, with no give when you press. Delamination feels like a soft spot, a raised area, or a wave in the surface. Some delamination is visible as a bubble or a wavy distortion, especially when sunlight hits the wall at a low angle.
Check these areas first: below every window (the most common starting point), along the bottom edge of the sidewall where road spray hits, around exterior lights and trim pieces, and near the roof edge where cap sealant meets the sidewall. These are the points where seals fail first and water enters.
The "knock test" is another quick check. Tap the sidewall with your knuckles in different spots. Bonded fiberglass produces a solid, sharp sound. Delaminated fiberglass sounds hollow or dull. If you hear a change in tone as you move across the wall, you've found the boundary of the delaminated area.
Pro Tip
Check your sidewalls every 3 months in Jensen Beach. Delamination spreads fastest during summer when heat is highest. A bubble that's 6 inches wide in April can be 2 feet wide by October if left alone.
Repair Options
Injection repair works for small delamination (under 4 sq ft) where the luan substrate is still solid. We drill small holes through the fiberglass at strategic points, inject two-part structural adhesive behind the skin, and clamp the area flat with vacuum bags or caul plates. The adhesive cures in 12 to 24 hours, rebonding the fiberglass to the substrate. We fill and smooth the drill holes so they're invisible. This method costs $300 to $800 and works well when caught early.
Section replacement is needed when the luan substrate has rotted or delaminated beyond bonding. We cut out the damaged section, replace the substrate with marine-grade plywood, bond new fiberglass skin over it, and blend the repair into the surrounding wall. This is more involved ($800 to $2,500) but restores full structural integrity to that wall section.
Full panel replacement is the last resort for extensive delamination covering most of one sidewall. We remove the entire exterior skin on that side, replace all damaged substrate, and install a new fiberglass panel. This is the most expensive option ($2,500 to $4,000+) but sometimes it's the most cost-effective compared to patching multiple large areas.
Aluminum Sidewall Repairs
Not all RVs have fiberglass sidewalls. Many travel trailers and some fifth wheels use corrugated or smooth aluminum siding. Aluminum doesn't delaminate (there's no substrate bond to fail), but it does dent, scratch, corrode, and separate at seams.
Dent repair on aluminum siding costs $150 to $500 depending on the dent size and location. Small dents can be pulled or pressed out. Larger dents or creased panels need section replacement.
Seam separation happens where aluminum panels overlap. The sealant between panels fails (same UV/heat cycle that kills every other seal in Jensen Beach), and water enters through the seam. We reseal the seam with automotive-grade lap sealant that flexes with the panels. Cost: $100 to $300 per seam.
Corrosion around screws, rivets, and trim is common in Jensen Beach's salt air. We remove corroded fasteners, treat the surrounding metal, and reinstall with stainless steel fasteners and fresh sealant. This prevents water entry through the fastener holes.
Why Jensen Beach Is the Worst Place for Delamination
We keep coming back to this because it's important. Jensen Beach sits at the intersection of every environmental factor that causes and accelerates delamination.
UV radiation degrades the seals that keep water out. Our UV index exceeds 8 for over 200 days per year. Seals that last 10 years in Oregon last 5 to 7 here. Once a seal fails, the clock starts ticking.
Rainfall provides the water. We average 52 inches per year, with most falling in intense afternoon storms from June through October. Wind-driven rain pushes water into gaps that gentle rain wouldn't reach.
Heat creates the steam pressure. When the sun heats an RV sidewall in Jensen Beach, surface temperatures can exceed 160 degrees F. Trapped moisture becomes steam, and steam pressure is what actually separates the fiberglass from the substrate. This steam effect is why delamination is rare in cool, dry climates but epidemic in Florida.
Humidity prevents drying. Even after rain stops, our 75%+ ambient humidity means the trapped moisture doesn't evaporate. It stays in the substrate, keeping it saturated and ready for the next heat cycle to create more steam pressure.
Florida Factor
RVs stored in covered facilities in Jensen Beach develop delamination at about half the rate of RVs in open storage. The cover reduces UV on seals and lowers sidewall temperatures by 20 to 30 degrees, cutting the steam pressure effect significantly. If covered storage isn't available, parking the most-windowed side away from the afternoon sun helps.
Pricing Overview
| Service | Typical Cost |
|---|---|
| Injection repair (under 2 sq ft) | $300 - $600 |
| Injection repair (2-4 sq ft) | $500 - $800 |
| Section replacement (small) | $800 - $1,500 |
| Section replacement (large) | $1,500 - $2,500 |
| Full panel replacement | $2,500 - $4,000+ |
| Aluminum dent repair | $150 - $500 |
| Aluminum seam reseal | $100 - $300 |
Related Exterior Services
Call 772-356-0328 for a delamination assessment.
Sidewall & Delamination Questions
How much does RV delamination repair cost in Jensen Beach?
Small delamination repairs (under 2 sq ft) run $300 to $800. Larger sections cost $800 to $2,500. Full panel replacement on one side of the RV can reach $2,500 to $4,000+. The cost depends on the delamination extent, whether the substrate needs replacing, and the sidewall material type.
What causes RV sidewall delamination?
Water intrusion is the primary cause. When water gets between the fiberglass outer skin and the luan plywood substrate (usually through failed seals around windows, lights, or trim), the adhesive bond fails. Florida's heat accelerates this because the trapped moisture creates steam pressure that pushes the fiberglass away from the substrate.
Can delamination be repaired or does the whole panel need replacing?
Small areas (under 4 sq ft) can often be repaired by injecting adhesive behind the fiberglass and clamping it flat while it cures. Larger areas or cases where the luan substrate has rotted usually require panel replacement. We assess the substrate condition before recommending repair vs. replacement.
How do I spot delamination early?
Run your hand along the sidewall. Healthy fiberglass is smooth and firm. Delamination feels like a soft spot, bubble, or wave in the surface. You can also see it when light hits the wall at an angle. Catching it when the bubble is small keeps the repair affordable.
Is delamination covered by RV insurance?
Rarely. Most insurance policies consider delamination a maintenance issue (gradual water intrusion through failed seals). However, if the delamination resulted from a covered event like storm damage or an accident, it may be covered. We can document the damage for insurance claims.
How long does delamination repair take?
Injection repairs on small areas take 4 to 8 hours (including cure time). Panel replacement takes 1 to 3 days depending on the size and whether structural framing needs repair. We work on-site at your location for most delamination jobs.
Does delamination affect RV value?
Significantly. Delamination is the number one cosmetic red flag for RV buyers because it signals water damage and structural concerns. An RV with visible delamination can lose 20 to 40% of its resale value. Repairing delamination before selling is one of the best ROI investments you can make.
Why is delamination worse in Jensen Beach than other areas?
Florida's combination of heavy rainfall, high humidity, and extreme heat creates the perfect storm for delamination. Water enters through UV-degraded seals, and then Jensen Beach's 90+ degree temperatures heat the trapped moisture into steam. That steam pressure is what separates the fiberglass from the substrate. Northern climates don't generate this steam pressure effect.
Seeing bubbles on your sidewalls?
Don't wait. Delamination spreads fast in Florida's heat. Free assessment in Jensen Beach.