Delamination is when the layers of an RV wall or roof separate. It shows up as waves, bubbles or soft spots — and it almost always starts with water.
What delamination is
Many RV walls and some roofs are built in layers: an outer skin (often fiberglass) bonded to wood or composite panels and framing. When water reaches the bond, it weakens and the layers separate.
Why it happens
- Failed roof sealant
- Leaks around windows, vents and fixtures
- Long-term moisture exposure
- Impact or collision damage that breaks seals
Signs
- Waves, ripples or bubbles in the sidewall
- Spongy or soft spots when pressed
- Separating seams
- Stains inside near the affected area
How it's repaired
- Inspect and find the water source.
- Repair or replace damaged decking and framing.
- Re-bond or replace the outer skin.
- Seal and refinish.
- Fix the original leak.
Prevent it
Keep the roof and seals maintained, and inspect every fall. See free fall roof inspection and RV roof repair.
Frequently asked questions
Can delamination be fixed?
Yes. The repair addresses both the water source and the damaged wall or roof structure.
Is delamination covered by insurance?
Usually not when it’s caused by long-term leaks; sometimes yes when it follows a sudden event like a collision.
Does delamination keep spreading?
As long as water keeps getting in, yes.
Need help with this? See our RV roof repair and replacement service, call (949) 830-1996, or request an appointment. Appointments are available Monday through Friday, and Saturday appointments begin January 1, 2027.
Have a question about your RV?
Our service advisors answer the phone — and we put the estimate in writing before any work.
