Cool Reflective Roof Coatings (CRRC)

Naturally, all roofs tend to turn dull/dark/black over a period of time due to various factors such as settling of dust, pollutant particle, bird shit and development of algae, fungi on the surface. In the case of asphalt shingles roofs, the temperatures can reach 160 degrees Fahrenheit (71 °C) on a 100-degree Fahrenheit (37 °C) day and the temperature is sustained at 160 degrees Fahrenheit for up to five hours if the shingles are exposed to direct sunlight. Here comes the degradation of roof material due to consistent UV exposer leads to weakening of the structure. 

In CRRC, roof surfaces are coated with materials with high solar reflectance to emit solar radiation, as well as high infra-red emissivity to release absorbed heat. 

Benefits of CRRC technology

  • Decreases the heat penetrating the building, reducing ambient air temperatures: less energy is required for air conditioning. 

  • helps protect a roof from degradation through
    weathering: reduces maintenance requirements and extends roof lifetime.

  • helps to combat the urban heat island effect, which results in temperature peaks in urban areas.

  • Easy to apply on a variety of substrates, including sloping roofs

  • offers the ability to achieve Leadership in Energy and Environmental Design (LEED) credits and supports Smart City ambitions

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Key for functionally effective solution

  • flexibility: in order to expand and contract along with the waterproofing layer

  • durability: the ability to withstand mechanical and exposure stresses experienced on rooftops

  • temperature resistance: to withstand high roof surface temperatures

  • dirt resistance: essential for maintaining core
    the functionality of solar reflectivity, the key to achieving energy savings

  • excellent adhesion in wet and dry condition

  • water resistance for long term durability

Features

  • With high solar reflectance to reflect solar radiation

  • With high thermal emissivity to release
    absorbed heat

  • Decreasing the heat penetrating into the building

  • Reducing ambient air temperatures and increasing thermal comfort

  • Significantly lowering energy consumption /
    cooling loads from air-conditioning

  • And above all, increasing the lifetime of roofs

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