We’ve just experienced another summer with record-high temperatures, and once again, it has become clear that rooftops are one of the most critical points in terms of energy efficiency. Beyond leaks, solar overexposure can cause structural temperatures to rise by up to 30 °C, resulting in increased energy consumption and accelerated material degradation.
In fact, according to the United States Environmental Protection Agency (EPA), a roof treated with reflective coating can remain between 28 °C and 33 °C cooler than a conventional roof during the summer months.
Faced with this scenario, more and more professionals are turning to coolroofing solutions like CoolTop®, developed by Eagle Waterproofing. CoolTop® acts as a sustainable thermal barrier, reflecting solar radiation and reducing the building’s thermal load. It is already being successfully implemented in residential, commercial, and industrial projects of all kinds.
What makes a coolroofing system truly effective?
Solar reflectance depends on more than just a white finish. To ensure efficient and long-lasting performance, a system must offer:
- A Solar Reflectance Index (SRI) higher than 100.
- High resistance to ponding water, especially on flat roofs.
- Easy cleaning and maintenance to preserve reflective properties.
- Advanced chemical resistance, essential in harsh environments such as coastal areas, where salt and high sun exposure may affect performance.
CoolTop® meets all these requirements, has been formulated to deliver long-term technical protection and energy efficiency, and is adaptable to a wide range of substrates and climate conditions.
Real data, real benefits
Thermal comparisons have shown that CoolTop® can reduce rooftop surface temperatures by up to 20 °C compared to metal surfaces, and up to 40 °C compared to dark synthetic membranes like EPDM.
These results translate into:
- Lower cooling demand and reduced energy use.
- Improved indoor comfort.
- Extended lifespan of existing waterproofing.
- Increased photovoltaic performance.
- Reduced environmental impact of the building.
A durable and efficient solution
CoolTop® is a white, glossy aliphatic polyurethane resin with excellent mechanical and chemical resistance. Once applied, it forms a continuous, flexible film resistant to UV rays, salt, acids, chlorinated water, and the growth of algae or mold. It is walkable and resistant to ponding water.
Its formulation is certified for a lifespan of over 25 years, ensuring long-lasting and effective protection.
More than just a finishing layer for the Ultraflex system, CoolTop® is a versatile solution compatible with a wide variety of substrates and systems: synthetic membranes (EPDM, PVC…), bituminous felts, polyurethanes and polyureas, metal and fiber cement roofs, among others. It also enhances performance when combined with sustainable systems such as solar panels, improving overall energy production of the building.
A powerful tool against the urban heat island effect
In urban environments, CoolTop® helps reduce rooftop heat and mitigate the heat island effect, improving thermal comfort and quality of life, while lowering collective energy demand.
“Sobre una membrana en buen estado, aplicar CoolTop® permite controlar la temperatura y alargar significativamente la vida útil del sistema de impermeabilización. Con una protección adecuada, se evita la generación de residuos y los costes innecesarios de sustitución”, afirma Gemma Mogas, Directora General de Eagle Waterproofing Ibérica.
Time to take action
CoolTop® represents a new generation of solutions for energy efficiency and sustainability. It adds value to both new construction and renovation projects and addresses the major technical, environmental, and economic challenges facing today’s construction industry.
Ready to move on from traditional systems? Discover how CoolTop® can transform the efficiency and functionality of your rooftops.
¿Estás preparado para dejar atrás los sistemas tradicionales?
Descubre cómo CoolTop® puede transformar la eficiencia de tus proyectos y mejorar la funcionalidad de las cubiertas.
