Cool roof tiles, also known as reflective roof tiles or white roof tiles, are roofing materials designed to reflect more sunlight and absorb less heat compared to traditional roof materials. They are typically made from materials that have high solar reflectance and thermal emittance properties.

Cool roof tiles have high solar reflectance, meaning they reflect a significant portion of the sunlight that strikes them. This prevents the roof from absorbing as much heat as traditional dark-colored roofs, helping to keep the building cooler.

These tiles also have high thermal emittance, which allows them to release the absorbed heat more efficiently. This property helps in keeping the building interior cooler, especially during hot weather.

By reducing the amount of heat absorbed by the roof, cool roof tiles can help lower indoor temperatures, reduce the need for air conditioning, and lower energy bills. This can lead to increased energy efficiency and reduced environmental impact.

Cool roof tiles are designed to be durable and long-lasting, providing protection to buildings while also offering energy-saving benefits.