RV Maintenance

Exterior and Underbelly Inspection for a Parked RV

Answers: What should I check underneath and around my RV twice a year? · Updated August 2026

Almost everything expensive announces itself early somewhere on the outside of the rig. Two walkarounds a year, with a flashlight and twenty minutes underneath, catches most of it.

Quick answer

Twice a year, inspect all exterior sealant, window and door frames, delamination, the underbelly membrane, insulation sag, wiring and plumbing runs, the frame for rust, and any gap a rodent could use.

The walkaround

Sealant at every window, door, light, and body seam.
Sidewall waviness or bubbling that signals delamination.
Awning fabric, arms, and mounting rail.
Steps, jacks, and stabilizers for rust and free movement.
Compartment door seals and latches.

Underneath

Torn or sagging underbelly wrap.
Wet insulation — a sign of an ongoing leak.
Chewed or hanging wiring.
Loose plumbing hangers.
Surface rust versus flaking structural rust on the frame.

Write it down

Keep a simple log with dates and photos. It makes patterns visible and it is worth real money when you sell the rig.

Frequently asked questions

Should I skirt my RV in Texas?

Skirting helps with winter freeze protection and pest exclusion, but it must allow ventilation and comply with park rules.

What does delamination look like?

Waves, bubbles, or soft areas in a fiberglass sidewall, usually caused by long-term water intrusion.

Follow your manufacturer first. This guide is general information from a long-term RV park, not a substitute for the instructions that came with your RV, appliances, roof material, tires, or propane system. Those documents take priority. Use a qualified RV technician or licensed trade for propane, 120-volt electrical, refrigerant, structural, and suspension work.

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