Normal vs concerning
New shingles shed loose manufacturing granules for a season or two — light grit in gutters is expected.
Widespread bare spots, dark asphalt showing, or thick granule mats every spring on a 15–20 year roof point to replacement planning.
What accelerates loss
- South-facing slopes baking in summer sun
- Hail and wind storms
- Walking on brittle old shingles
- Pressure washing roofs (avoid it)
Next step
Photograph gutters and slopes in spring. If bald areas show from the yard, request a written look — not another cleaning that strips more granules.
We will say whether repair, monitoring, or replacement fits what we see.