Eliminate Algae Worries.

If you live in a wet climate, the consequences of dampness, humidity, and algae can be devastating for the appearance of your roof. PABCO® shingles with Algae Defender® offer protection from algae, preventing those nasty black streaks from forming on your roof. Test data has shown that with proper roof maintenance, Algae Defender is also effective in mitigating moss and lichen growth.

Our Algae Defender technology uses a precise, even distribution of copper granules on each shingle that is backed by years of data demonstrating superior performance. In coastal areas and other humid climates, Algae Defender provides another layer of protection, so you can worry less and enjoy your algae-free roof more.


PABCO® has over two decades of experience in producing premium algae resistant asphalt shingles.


We use proven manufacturing techniques that provide lasting protection against black streaks caused by algae.


Up to a Limited Lifetime Warranty* against black streaks caused by algae.
*See PABCO’s Limited Shingle Warranty for details, limits and conditions

Defend Your Roof

Defend your roof against unsightly black streaks caused by algae. Choose PABCO® Roofing asphalt shingle products featuring Algae Defender®.

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PABCO® Products available with Algae Defender:

Where to Find
Algae Defender® Products

Algae Defender is not available in all markets. Contact PABCO® or your local distributor to confirm availability.

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