critical severity
Water damage shows up as soft floors and walls, stains around seams and windows, bubbling fiberglass (delamination), and a musty smell. Minor surface fixes are cheap, but structural rot can cost thousands and is usually a walk-away on a used purchase.
What it means
Water that gets past a failed roof, seal, or window soaks the wood structure behind the walls and floor, causing rot, mold, and delamination that spreads over time.
Symptoms & signs to look for
- Soft or spongy floors, walls, or ceiling
- Stains or discoloration near windows, vents, and slides
- Bubbling or wavy exterior fiberglass (delamination)
- Musty or moldy smell inside
- Fresh caulk smeared over old seams
What to inspect
- Press firmly on floors, walls, and around every window
- Use a moisture meter on lower walls and corners
- Inspect the roof membrane, seams, and front cap
- Open cabinets and look under beds/dinettes for stains
- Check the slide floors and seals
Repair cost & price impact
| Item | Typical range |
|---|---|
| Repair cost | $200 for a reseal to $3,000–$10,000+ for structural rot |
| Effect on what you should pay | Confirmed structural water damage usually means walk away, not negotiate. |
Most affected: All RVs, especially older towables stored outdoors
Questions to ask the seller
- Has it ever leaked or had water intrusion?
- When was the roof last resealed?
- Can I bring a moisture meter?
When to walk away
- Soft structure or active leaks
- Mold throughout
- Delamination beyond a small cosmetic patch
RVverdict provides educational buyer guidance, not a professional RV inspection, appraisal, legal advice, insurance quote, financing offer, or guarantee. Always verify title, service records, tire age, and roof/seal condition independently. Consider a professional inspection before buying.