Roof discoloration

Discolored areas on the shingles.

Dark streaks and blotchy discoloration across a section of roof shingles
From a HomeCloud evaluation.
Less commonPlan for itRoof covering

Why it matters

Discoloration can mean algae or other growth, which can affect how well the roof protects the house.

How common is it?

Found in 1% of the homes HomeCloud evaluated, Sep 2025 to Oct 2026.

Counted by the finding's name on HomeCloud reports, so the true number can be a little higher.

How soon to fix it

HomeCloud reports list this as something to plan for rather than an emergency.

Get it fixed

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