3M Scotchgard Protector is an innovative technology that includes copper-containing granules made with a proprietary 3M porous ceramic coating. This allows copper ions to release slowly over time, helping to prevent the black streaks caused by algae.
While many competing shingles claim algae resistance, Atlas shingles use a unique 3M ceramic-coated copper granule technology that offers lasting protection, preventing stains and maintaining the roof’s appearance for years.
This distinction matters for Louisiana and Texas homeowners specifically. Humidity levels across South Louisiana and the Texas Gulf Coast create near-ideal conditions for algae growth on roofing surfaces. Standard algae-resistant granules lose effectiveness over time. The 3M Scotchgard technology uses a time-release copper ion mechanism that maintains its effectiveness over the life of the shingle, not just in the first few years after installation.









