Do solar panels cause mold on the roof?

• <div><p>It’s possible that installing solar panels can lead to mold on the roof. The panels themselves are not the issue. Problems caused by improper installation—such as roof leaks and mounts that aren’t sealed properly—can cause mold. Another potential cause of mold is debris accumulation under panels, which can trap moisture. If you live somewhere with extreme snow, rain, or hail, your home could be more prone to mold.</p></div>

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Q: Can pros remove tough stains and mildew?

• <div><p>Yes, pros use specialized solutions and pressure settings tailored to surface sensitivity.</p></div>

Q: Do solar panels need to be cleaned?

• <div><p>While it&rsquo;s not completely necessary for them to operate properly, as the occasional rainfall can rinse away dirt and debris, manually cleaning solar panels from time to time can keep them operating more efficiently.</p><p>Dirt, debris, pollen, and bird droppings can collect on the surface of the panels. Depending on the amount of solar panels you have, this can add up over time, so set a regular maintenance schedule. Moreover, if you live in a climate with little to no rainfall, more debris can accumulate, causing inefficiencies that would be clear in your electricity bill. </p></div>

Q: How do I prevent future damage to my metal roof?

• <div><p>Regular cleaning, promptly repairing minor issues, ensuring proper drainage, and using rust-resistant coatings help prevent recurring damage.</p></div>

Q: What is a flat roof suitable for?

• <div><p>Flat roofs are a solid option for people who want extra outdoor space. Flat roofs are very common in other parts of the world and only recently has the U.S. started to see the benefit in the increased space. Flat roofs are also easier to maintain and pose much less of a safety risk, which allows for more DIY work for handy homeowners. Some people also build green or living roofs that grow plant life. </p></div>

Q: Do solar panels cause mold on the roof?

• <div><p>It&rsquo;s possible that installing solar panels can lead to mold on the roof. The panels themselves are not the issue. Problems caused by improper installation&mdash;such as roof leaks and mounts that aren&rsquo;t sealed properly&mdash;can cause mold. Another potential cause of mold is debris accumulation under panels, which can trap moisture. If you live somewhere with extreme snow, rain, or hail, your home could be more prone to mold.</p></div>

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Verified Reviews for Roof Cleaning pros in Alamo, NV

*The Angi rating for Roof Cleaning companies in Alamo, NV is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roof Cleaning needs.

*The HomeAdvisor rating for Roof Cleaning companies in Alamo, NV is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roof Cleaning needs.

Last update on November 19, 2025

Reviewed in August 2023
David cleaned, caulked vents, nailed loose shingles, and applied sealant to our roof. He is great about communication, arrived when he said he would, pricing is very fair, and was such a pleasure to work with. We will eventually need a new roof and would not hesitate to use him as our roofer.
David Trail
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Reviewed in July 2023
I hired Davila Roofing to do a commercial restaurant in Stockton. I do a lot of commercial jobs and I work with a lot of subcontractors. Humberto and his crew is one of the only subcontractors I could count on to be on time and to clean up his mess when he was finished the work was outstanding....
DAVILA ROOFING
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Reviewed in February 2023
The guys at Silver State Cleaning have been amazing to work with. Cleaning on short notice, letting me know when supplies are low. The cleaning has been great! It's nice to trust that our condo will be perfect for our next guests. They answer texts and emails quickly. Great to work with.
Silver State Cleaning
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Reviewed in November 2020
Asphalt shingle roof replacement
ABC Roofing
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Reviewed in July 2019
Everything went better than expected. The crew was in and out quickly and completely cleaned up all debri. Excellent job!
Vargas Tree Service & Maintenance
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Reviewed in September 2016
She was cleaning everything and everywhere, I'm very satisfacted about the cleaning service
Veronica's Cleaning
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Reviewed in August 2016
Our porch has a flat roof we did a little research and found there are only a few places that do flat roof repair Sela Roofing and Remodeling being one ( Glad they are ) We called Sela and several other contractors for a bid. Sela was the only one to give us a complete bid for the job. While...
Sela Roofing & Remodeling
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Reviewed in November 2015
I bought a package for pigeon abatement.The up sale began when I called to schedule. Provider arrived late and the up sale continued before he got on the roof. I ended up paying him a few extra hundred dollars. Whatever he did fixed the problem. It's 3 years later & I haven't had any problems.
Goldstar Services
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Reviewed in July 2013
The only drawback was that it took about 6 weeks to schedule the work date, but the roof had been temporarily repaired before this work was done. AAR was very professional, fair, and, thorough.
A 1 ALL AMERICAN ROOFING
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Reviewed in May 2013
I liked that the guy that came out was real knowledgeable. The estimate was right and they didn’t charge us anymore. I didn’t like that they sent out two Mexicans that weren’t sure what they were going to do. They got it figured out and did it right. The roof doesn’t leak anymore. The guy...
Aspen Roofing
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Roof Cleaning questions, answered by experts

Yes, pros use specialized solutions and pressure settings tailored to surface sensitivity.

While it’s not completely necessary for them to operate properly, as the occasional rainfall can rinse away dirt and debris, manually cleaning solar panels from time to time can keep them operating more efficiently.

Dirt, debris, pollen, and bird droppings can collect on the surface of the panels. Depending on the amount of solar panels you have, this can add up over time, so set a regular maintenance schedule. Moreover, if you live in a climate with little to no rainfall, more debris can accumulate, causing inefficiencies that would be clear in your electricity bill.

Regular cleaning, promptly repairing minor issues, ensuring proper drainage, and using rust-resistant coatings help prevent recurring damage.

Flat roofs are a solid option for people who want extra outdoor space. Flat roofs are very common in other parts of the world and only recently has the U.S. started to see the benefit in the increased space. Flat roofs are also easier to maintain and pose much less of a safety risk, which allows for more DIY work for handy homeowners. Some people also build green or living roofs that grow plant life.

It’s possible that installing solar panels can lead to mold on the roof. The panels themselves are not the issue. Problems caused by improper installation—such as roof leaks and mounts that aren’t sealed properly—can cause mold. Another potential cause of mold is debris accumulation under panels, which can trap moisture. If you live somewhere with extreme snow, rain, or hail, your home could be more prone to mold.

The Alamo, NV homeowners’ guide to roof cleaning services

From average costs to expert advice, get all the answers you need to get your job done.

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Explore the Pros and Cons of Roof Cleaning
Learn more about the pros and cons of roof cleaning to decide whether your home’s roofing material can benefit from removing mold, moss, and algae.