Do a 60-second visual check from the ground
You don't need to climb the roof. A pair of binoculars from the driveway tells you most of what you need to know.
What you'll learn
- What heavy soiling looks like from below (uniform brown haze across glass)
- How to spot bird droppings vs. atmospheric film
- When critter activity has moved in under your panels
- Why a partial uniform haze is normal and a streaky pattern is not
Step by step
- Stand back from the house far enough to see the full array.
- Use binoculars or zoom in with your phone camera.
- Look for white bird-dropping spots — these are highest priority to remove.
- Look for nesting material, twigs, or droppings under the panel edges.
- Take a dated photo so you can compare next month.
Safety note
Heavy white droppings concentrated in one area usually means a roosting spot above the array. Cleaning without bird proofing means you'll be cleaning again in 30 days.
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More guides
Keep learning.
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When NOT to rinse your panels with a hose
A hose rinse seems harmless. Done wrong, it bakes mineral deposits onto your glass permanently.
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What to do after a wildfire ash event
Santa Ana ash can drop production 15–30% in days. Quick, careful response keeps panels from etching.