Home Technology How to Clean Solar Panels on the Roof

How to Clean Solar Panels on the Roof

by Ethan more
Solar Panels

In the last few decades, homeowners across the US have grown more confident in the quality of solar panels. Throughout the 2010s, as costs declined, many people jumped on the opportunity to install roof solar panels. 

Typically, solar panels cost approximately $20,000 to install. Nevertheless, many homeowners persist in purchasing solar energy systems. Several benefits make them appealing, but many appreciate their low maintenance requirements.

People often say that solar panels require no maintenance, but that’s not entirely true. Solar panels do become dirty over time, which hinders their efficiency.

So, it’s helpful to know how to clean solar panels on roof faces. Fortunately, cleaning your panels can be a straightforward task. Read on to learn how to start!

How To Clean Solar Panels on Roof Faces: Start with Light Rinsing

Depending on your roof’s design, you may be able to clean your roof by letting the rain do the task. The ideal location for roof solar installation is a slanted, south-facing portion. If your panels slant downwards, falling rain often rinses them enough to allow optimal performance.

However, dry seasons or other roof designs may allow dust, pollen, and bird droppings to accumulate. As this occurs, your panels become less efficient in performing their job. 

During those dry seasons, start cleaning your solar panels by rinsing them gently with a garden hose. Try not to use too much water pressure; after all, solar panels manage electricity. Too much water could cause damage.

If the only inhibiting feature on your panels is dust accumulation, light rinsing will solve the problem. For stickier residue, you may need a more hands-on approach.

How to Clean Solar Panels with Heavy Buildup

To solve this problem, you’ll need three materials:

  • A soft brush with a squeegee long enough to reach the panels
  • A water hose
  • A bucket of water and mild soap

Once you’ve gathered these materials, rinse the solar panels to clear away loose buildup. From there, use the scrubber and your soapy water to scrub your panels. 

Don’t apply too much force to the panels. If there’s a tenacious buildup spot, scrub lightly in small circles.

Over time, the residue will come free. You’ll most likely need to clear away bird droppings with this technique. 

Once you’ve scrubbed your panels, rinse them once again. Then, use your squeegee to dry the panels.

Be careful to avoid touching the undersides of panels. Touching wiring and cables with water could cause equipment malfunctions or injuries.

Consider Using a Solar Panel Company

While it’s possible to clean solar panels yourself, you can also use a solar panel company. They have the rooftop experience and knowledge to clean your panels with no risk to your equipment. Contact your solar installation company and ask if they have a cleaning team.

Start Cleaning Today!

Once you decide how to clean solar panels on roof faces, get started right away! The last thing you want is for your panels to become ineffective.

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