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Atlas designer shingles with Scotchgard Protector help prevent black streaks caused by algae, keeping your roof looking beautiful for years.

  • Copper Fights Black Streaks

  • Atlas shingles featuring Scotchgard™ Protector have:

  • Copper-containing granules with a proprietary 3M™ porous ceramic coating that allow copper ions to release slowly over time.

  • A minimum 10% blend of evenly distributed 3M™ Copper Granules among standard colored granules.

  • Third-party verification of the 3M™ copper granule application.

  • An Atlas Lifetime* Algae Resistance Limited Warranty against black streaks caused by algae.

10% Or More 3M™ Copper-Containing Granules = Resistance Against The Black Streaks Caused By Algae.


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