Granules
Crushed ceramic particles embedded in asphalt shingles that protect against UV damage and provide color.
Why It Matters for Homeowners
Why it matters: granules are the early-warning system for an aging roof. Once you start finding piles of them in the gutters, the shingles below are losing UV protection, and the asphalt mat underneath starts cooking faster. Visible granule loss from the ground is usually a signal that the roof has 2-3 years of useful life left at most. It is the right moment to schedule a professional inspection rather than waiting for a leak.
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