Why Cool Roofs Are Such a Hot Topic

from Building Science Digest · host CertainTeed

What exactly is a “cool roof,” and why are building codes and communities across the country paying so much attention to them? In this episode of Building Science Digest, host Christian Kennedy sits down with CertainTeed Product Manager for Low-Slope Roofing, Ted Winslow, to break down the science, benefits, and future of cool roof technology. Together, they explore: The fundamentals of heat transfer (conduction, convection, and radiation) and how reflective roofing helps manage it. The Solar Reflectance Index (SRI) and why it’s key to codes like California’s Title 24 and LA County’s Title 31. How cool roofs play a role in reducing the urban heat island effect. Practical benefits for building owners, from lower cooling loads to increased durability and resilience. Where the industry is headed next—including smart technologies, green roofs, and solar integration. Whether you’re an architect, contractor, or just curious about sustainable building solutions, this episode will give you a clear and engaging look at why cool roofs are more than just a trend— they’re shaping the future of energy-efficient design.

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This episode was published on September 18, 2025.

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