RV Fiberglass and Delamination Repair in Sebring, Florida

In Highlands County, fiberglass trouble is water trouble. Ultraviolet light chalks the gelcoat here as it does everywhere, but what actually causes the trouble is delamination: the fiberglass skin separating from the substrate behind it because water got in and stayed. Sebring takes about 52 inches of rain a year, the muggy season runs from late April to mid-November, and a sidewall that gets wet does not dry out. We repair gelcoat cracks, crazing, small punctures, failed trim and seals, and localized delamination at your resort site, fish camp, storage lot, or driveway, and the water path is traced first.

Delamination, and why it is a Florida problem

A laminated RV sidewall is a sandwich: a thin fiberglass skin bonded to luan plywood or foam, bonded to a frame, bonded to the interior wall. The bond is an adhesive, and it holds as long as the layers stay dry. Once water reaches the luan it swells, the adhesive releases, and the skin lifts into the bubble you can see and press. The water gets in at the edges: window frames, the roof-to-wall seam, trim strips, marker lights, the slide opening, an awning arm mount. It rarely gets in through the middle of a panel.

That is why the cheap version of this repair fails. Injecting adhesive into a bubble that is still being fed by a leaking window frame buys one dry season. The repair that lasts is: find the entry point, reseal it, confirm the substrate is dry, then re-bond. Whether a bubble is dry enough to inject is decided with a moisture meter on the day, and the roof repair and slide seal pages cover the two most common entry points.

What can be repaired on site

Localized delamination injection. Where the bubble is contained, the substrate is dry or can be dried, and the water path above it has been sealed, adhesive injection and clamping genuinely restores the bond. Runs $800 to $2,500 depending on area. Not every bubble qualifies, and a straight tech will say so.

Gelcoat cracks and crazing. Cracks are ground out to sound material, filled with matched gelcoat, cured, and sanded and polished back. Crazing over a wide area is assessed honestly: sometimes the right answer is a repair, sometimes a polish and a UV protectant, sometimes nothing at all. Spot work runs $200 to $600.

Small punctures and impact damage. Ladder strikes, low oak limbs on a fish camp lane, gravel damage, awning arm gouges. Repaired with glass and resin from behind where access allows, then finished from the front.

Trim, molding, and seal work. A surprising share of what looks like body damage is a trim strip whose sealant has failed, letting water behind the skin. Correcting that is often both the repair and the prevention, and it is the job most worth pairing with a roof reseal on the same visit.

Storm damage assessment. Highlands County took gusts near 70 mph from Hurricane Ian in September 2022 and was the second-hardest-hit county in Florida from Irma in 2017. Wind-driven debris, a torn awning that gouged the sidewall, a skylight or vent cover simply gone: we provide photos and a written scope for your adjuster, plus a plain answer on which parts are mobile work and which are not.

Bubbles on a fiberglass roof

Most rigs here have a rubber or TPO membrane roof, which the roof repair page covers. Some travel trailers, fifth wheels and motorhomes have a fiberglass roof instead, and when that roof bubbles, it is the same failure as a sidewall bubble lying flat: the skin has let go of the plywood, Azdel or foam under it. The difference is that a roof holds water. Summer afternoon storms here come hard and fast, and any low spot near a vent, skylight, antenna or the front cap seam gets a soak instead of a rinse.

What we check, in order:

1. Where the bubble sits. A bubble ringing a roof vent, skylight, AC shroud or ladder mount is being fed by that fixture’s sealant. A bubble in open field with nothing above it usually traces back to the roof-to-wall edge or a ponding spot.
2. Whether it moves. Pressed with a flat hand, a sound gelcoat blister stays hard. A delaminated area flexes, crackles or feels hollow, and the edge of that flex is the edge of the repair.
3. Moisture under it. A meter reading tells us whether the substrate is dry enough to re-bond, needs drying first, or has rotted, which turns it into a panel job rather than an injection.
4. The sealant on every fixture. Keystone, for one, tells owners to inspect roof seams, joints and attachments at least every 90 days and reseal with the same sealant the factory used. In this climate that schedule is the difference between one bubble and a soft roof.

Stay off it until it is checked. A delaminated roof skin is no longer bonded to the deck that spreads your weight, and a knee in the wrong spot can crack the fiberglass or push through rotted decking. Photos from the ladder are enough for a first opinion.

If you have warranty coverage. Have the paperwork handy. Service contracts commonly exclude delamination and water damage, and manufacturers treat sealant maintenance as the owner’s job once the rig leaves the factory, so the first thing an adjuster asks is where the water got in and when the seals were last done. We write that down with photos and moisture readings, whichever way the claim goes.

What belongs in a body shop

Some fiberglass work cannot be done well in a parking lot:

• Collision damage involving structure, framing, or alignment.
• Full sidewall or roof skin replacement.
• Anything requiring a paint booth for a full-panel or full-coach refinish.
• Delamination over large areas or with a wet, rotten substrate. Once the luan has rotted, injection has nothing to bond to.

Photographs usually show whether your rig needs one of those, and we will tell you by phone rather than charge a trip fee to deliver the news.

Cost, honestly

Everything above sits alongside the rest of the published pricing. Fiberglass is the one area where far more jobs get quoted after looking than before, and that is deliberate: the extent of a delamination and the moisture in the substrate behind it are not things a photograph reliably shows. A moisture meter does.

Why inland Florida rigs need this more than most

Three mechanisms, none of them dramatic on a given day:

Humidity that never lets go. From late April to mid-November the air here is muggy at least a third of the time and July averages 79 percent relative humidity. A sidewall that gets wet at a seam in June is still wet in September. In a dry climate the same leak would have evaporated between rains.

Rain volume. More than half the year’s 52 inches falls between June and September, much of it in afternoon downpours that hit the sidewalls sideways. Every seam is tested daily for four months.

UV on the gelcoat. Sebring’s July average high is over 91°F, and the gelcoat that protects the resin chalks and thins under that sun. A chalky surface no longer sheds water cleanly, which feeds the first two.

The practical defense is unglamorous: keep the gelcoat waxed or treated with a UV protectant, get cracks dealt with while they are small, and reseal windows and trim on a schedule rather than after a bubble appears. A spring roof reseal visit is the right moment to have the sidewall seams looked at, because the ladder and the trip are already paid for.

Area

On site at RV resorts, fish camps, storage lots, and driveways across Sebring, Avon Park, Lake Placid, Lorida, Frostproof, Wauchula, and Okeechobee. Send photographs with the request; they are usually enough to tell mobile work from a body shop job.