BuyingaUsedRV:TheNineThingsaDetailerChecksBeforetheTestDrive

A used RV inspection usually focuses on the drivetrain, the generator, the appliances, and the tanks. All of that matters. But the failures that write off coaches are almost never mechanical, they are water, and water problems announce themselves on surfaces long before they show up on a systems checklist.

We get called after the purchase more often than before it, usually by someone who bought a rig that looked clean in the listing photos. Here is the walkaround we would do, in the order we would do it, before money changes hands.

1. Sight down both sidewalls from the corner

Stand at a front corner and look down the length of the side at a shallow angle, then repeat at the back. You are looking for waves, ripples, or a soft bulge in what should be a flat plane. That is delamination: water has gotten between the fiberglass skin and its substrate and the bond has let go.

This is the finding that should end the viewing for most buyers. Delamination repair is structural, it is expensive, and it means water has been inside the wall long enough to do work you cannot see. Nothing about a detail, a polish, or a coating touches it.

2. Press the walls and floor, especially in the corners

Walk the interior perimeter and press the wall panels with a flat palm. Then walk the floor slowly, particularly the corners, along the slide-out tracks, in front of the entry door, and under any window. A wall that gives or a floor that flexes is rot, and rot is water that arrived a long time ago.

3. Look up at every ceiling panel and into every cabinet

Ceiling stains are the obvious one, but the more telling places are inside the upper cabinets and in the corners where the ceiling meets the wall. Open every overhead cabinet and look at the top back corner. Sellers clean what is visible. Very few think about the inside of the cabinet above the dinette.

A fresh coat of paint on a ceiling panel in an otherwise untouched interior is worth asking about directly.

4. Smell it before it has been aired out

Ask to open it up yourself rather than arriving to a rig that has had the vents open and a scented spray running for an hour. Musty is the smell you are listening for, and it means moisture is present now, not in the past. Heavy air freshener in an RV is the same signal as heavy air freshener in a used car.

5. Get eyes on the roof, or do not buy it

This is non-negotiable and it is the step people skip because it is awkward. Bring a stepladder if the rig does not have one. You are looking at the sealant beads around the air conditioner, the vents, the skylight, the antenna, any solar mounts, and along the front and rear cap seams.

Layered sealant is a specific tell. If you see two or three generations of caulk stacked over each other, somebody was managing a leak rather than fixing one, and the crack in the bottom layer is still there under all of it.

Ten minutes on a ladder tells you more about an RV's future than an hour of driving it does.

6. Wipe a sun-facing sidewall with a dark cloth

Take a dark microfiber and wipe a clean-looking panel on the side that faces the sun where the rig is stored. If the cloth comes away white, that is oxidized gelcoat chalking off. It is not a dealbreaker and it is fully correctable, but it is a real cost, and it moves a rig out of wash-and-seal territory and into multi-day correction work.

Use it as a negotiating fact rather than a reason to walk. Just get the number before you agree to a price.

7. Look hard at the decals

Vinyl graphics have a life span, and in Valley sun it is shorter than the coach's. Cracked, lifting, chalked, or faded decals cannot be polished back. They are a replacement item, they are priced by the graphic and the labor to strip the old ones, and on a rig with full-body graphics that number is substantial.

A seller describing badly failed graphics as something that will buff out is either mistaken or hoping you are.

8. Check the tire date codes, not the tread

RV tires almost always age out before they wear out, because the rig sits. Find the four-digit DOT code on the sidewall: the first two digits are the week, the last two are the year. Tires that look fine and are eight years old are not fine, and a set for a Class A is a serious line item that belongs in your offer.

While you are down there, look for flat-spotting and for sidewall cracking from UV, which is common on rigs stored uncovered in the Central Valley.

9. Open and inspect the awning fabric, fully extended

Run it all the way out. You are looking for mildew staining, brittleness, pinholes along the fold lines, and separation where the fabric meets the roller. Awning fabric that has been rolled up wet repeatedly fails along the folds, and it is a replacement rather than a cleaning job once it gets there.

What to do with what you find

Sort your findings into three piles. Structural water damage, which is a walk-away for most buyers. Deferred maintenance, meaning sealant, tires, awning, and roof work, which is a price conversation with real numbers behind it. And cosmetic, meaning oxidation, staining, and a tired interior, which is genuinely fixable and is where a good rig hides under a bad first impression.

That third pile is where the buying opportunities are. Heavily oxidized gelcoat photographs terribly and scares off buyers, and it is one of the few RV problems that is entirely reversible. A rig with a dry roof, a sound floor, and chalky sidewalls is usually a better purchase than a shiny one with three layers of caulk around the AC.

Send us photos from a viewing. We read surfaces for a living, and sometimes the useful answer is that the cosmetic problem in front of you is the least of what that rig has going on.