Dust, pollen and bird droppings can cut a solar panel’s output noticeably. Cleaning helps — as long as you use products and tools that don’t damage the panel’s surface or the roof around it.
Safe choices
- Plain water, ideally soft or deionized to avoid spots
- A mild, non-abrasive soap such as a gentle RV wash
- A soft brush or sponge on an extension pole
- Microfiber cloths
Avoid
- Abrasive pads and scouring powders
- Harsh solvents and petroleum-based cleaners
- High-pressure washers aimed directly at panels or junction boxes
- Cleaners that aren’t safe for your roof material
How to clean them
- Clean early or late in the day when panels are cool.
- Rinse loose dust first.
- Wash gently with mild soap and a soft brush.
- Rinse and let air-dry or wipe with microfiber.
- While you’re up there, check mounts and sealant around brackets.
Panels and roof together
Every bracket is a roof penetration. During detailing we clean panels and inspect mounts and seals. See RV detailing and solar upgrades.
Frequently asked questions
How often should I clean RV solar panels?
Whenever you see dust buildup or output drops — often every few weeks during heavy use.
Can I pressure-wash solar panels?
Avoid aiming a pressure washer directly at panels or connectors.
Do solar mounts cause leaks?
They can if the sealant around them fails. Check mounts when you clean.
Need help with this? See our RV detailing 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.
