Owens Corning Expands Algae Resistance Warranty Coverage

Owens Corning Algae resistant shingle
January 6, 2023 at 12:00 p.m.

Owens Corning is transitioning shingle lines and all hip and ridge shingles to a 25-year Algae Resistance Limited Warranty.

Owens Corning is investing in the longevity of a roof’s curb appeal as it transitions shingle lines and all hip and ridge shingles to a 25-year Algae Resistance Limited Warranty (up from 10 years). Covering most Owens Corning laminate shingles, including Oakridge® Series, Duration® Series, Berkshire®, Woodcrest® and Woodmore®, the warranty uses a system approach that pairs proprietary shingle technology with hip and ridge components to help protect homes’ roofs against stains and streaks caused by blue-green algae for up to 25 years. To get the most protection (and this enhanced warranty), approved Owens Corning hip and ridge shingles will need to be installed alongside a new algae resistant laminate shingle roof.  

The long-term protection against blue-green algae is achieved by changes Owens Corning made to its advanced granule formulation. Paired with hip and ridge components, laminate shingles with StreakGuard™ Algae Resistance Protection are formulated to help protect against blue-green algae staining and discoloration for 25 years, contributing to a home’s long-term curb appeal. The combination of laminate shingles with hip and ridge components works to deliver protection against algae that covers the entire slope of a home’s roof. 

Remarking on the expanded StreakGuard™ Algae Resistance Protection limited warranty, Jessica Tinney, product leader for Owens Corning’s Duration® shingle line said, “As homeowners want a great looking roof and shingles that will stand up to blue-green algae formation over time, StreakGuard™ Protection with a 25-year algae resistant limited warranty protects both the beauty and longevity of a homeowner’s roof investment.” 

Algae is a particular challenge for roofs in warm, humid environments, especially in Southern regions. Caused by microorganisms from the family Gloeocapsa, blue-green algae tolerate drought and heat and can survive in a dormant state even during winter’s cold temperatures. Ink-like streaks on rooftops are accumulations of blue-green algae. As these microorganisms can be carried by the wind, blue-green algae can “spread” from house to house. 

The StreakGuardTM Algae Resistance Protection with a 25-year algae resistant limited warranty is available starting in January 2023. Learn more and check market availability at https://www.owenscorning.com/en-us/roofing/streakguard.

About Owens Corning

Owens Corning is a global building and construction materials leader committed to building a sustainable future through material innovation. Our three integrated businesses – Composites, Insulation, and Roofing – provide durable, sustainable, energy-efficient solutions that leverage our unique material science, manufacturing, and market knowledge to help our customers win and grow. We are global in scope, human in scale with approximately 20,000 employees in 33 countries dedicated to generating value for our customers and shareholders and making a difference in the communities where we work and live. Founded in 1938 and based in Toledo, Ohio, USA, Owens Corning posted 2021 sales of $8.5 billion. For more information, visit www.owenscorning.com.

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