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Putting Shingle Rejuvenators to the Test: A Comparative Study on Effectiveness

It is clear that shingle rejuvenation is here to stay. As homeowners across North America continue to seek solutions for prolonging the life of their roofs, shingle rejuvenation is quickly becoming the norm. The overall acceptance of shingle rejuvenation as a viable option for roof maintenance has been seen across North America as evidenced by the thousands of successful rejuvenation performed in the past 5 years by Authroirized Greener Shingles Rejuventor dealers and other rejuvenation companies. Homeowners are recognizing the benefits of shingle rejuvenation, including improved shingle flexibility and appearance, and the potential to extend the lifespan of their roof, delaying roof replacement for as long as possible. Regardless of which product proves to be the most effective, it's clear that shingle rejuvenation is an increasingly popular and accepted solution for roof maintenance.

A recent study was conducted to compare the effectiveness of different rejuvenation products. The study evaluated key factors such as mass loss, wash-off material, granular loss, oxidative aging, shingle flexibility, and appearance. The results of the study showed that Greener Shingles Rejuvenator outperformed the closest competitive rejuvenator in all categories, demonstrating its superior effectiveness in prolonging the life of asphalt shingles. In this article, we will delve into the details of the study and discuss one of the most effective rejuvenators on the market today, Greener Shingles Rejuvenator.


PRI Asphalt Technologies is a leading independent laboratory that specializes in asphalt and asphalt-related testing. They are located in Tampa, Florida, and have been in operation since 1991. They are accredited by AASHTO, the American Association of State Highway and Transportation Officials, and are certified by the Florida Department of Transportation. PRI Asphalt Technologies is well-respected in the industry for its expertise and high-quality testing services. Their testing methods adhere to industry standards, and they utilize state-of-the-art equipment and technologies to ensure accurate and reliable results. Their testing services include evaluating the performance and durability of asphalt-based materials, including shingles. As such, their testing of Greener Shingles Rejuvenator is a credible and reliable means of evaluating its performance against other similar products.


This benchmark study was conducted to see how the Greener Shingles Rejuvenator product stands up to competitors products. The 3,000-hour weather-simulated tests are equivalent to 10 years of real-world weathering. Here are the key takeaways from the primary property assessment of Greener Shingles Rejuvenator compared to the closest competitive rejuvenator, in a more easily digestible format:

  • After 3,000 hours of exposure, the competitive rejuvenator showed 3.8% mass loss compared to 1.0% for Greener Shingles Rejuvenator, which performs 3.8 times better.

  • Both rejuvenators improved shingle flexibility from -22°F to -31°F after 1,500 and 3,000 hours of exposure.

  • Granular loss of shingles increased by 147% with the competitive rejuvenator after 3,000 hours of exposure, compared to a 50% increase with Greener Shingles Rejuvenator, which performs 2.9 times better.

  • After 3,000 hours of exposure, the competitive rejuvenator showed a 49.5% increase in carbonyl index compared to 9.6% for Greener Shingles Rejuvenator, which performs 5.2 times better.

  • Both rejuvenators resulted in shingles with similar appearances and colors after 3,000 hours of exposure.


In this study, Greener Shingles Rejuvenator performs significantly better than the competition in terms of mass loss, wash-off material, granular loss, and oxidative aging. It also improves shingle flexibility and maintains shingle color and appearance.

The results of this study provide valuable insights into the performance of shingle rejuvenation products and can help homeowners make informed decisions about which product to choose. However, it's important to remember that these results are based on lab testing, and real-world performance may vary depending on factors such as climate, roof condition, and maintenance practices.


It's essential for rejuvenation companies to be transparent about their testing methods and results, and for homeowners to do their own research and ask questions before investing in any shingle rejuvenation product. By prioritizing transparency and open communication, rejuvenation companies and homeowners alike can work together to ensure the longevity and durability of their roofs and make the most of this innovative and increasingly popular technology.



*This article is for informational purposes only. Some of the information and data presented in this article were generated using language models. Readers are advised to verify any important information and use their own judgment when applying the information provided in this article. For more information about this particular lab test study please inquire within for a PDF of the report.



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