New Material Keeps Roofs Cool in Sunlight

06/26/2015 |

Development could mitigate urban heat island effect

Roof

While facility roofs typically heat up in the summer, a new material can keep roof surfaces cooler than the surrounding ambient air temperature, even under direct sunlight.

The design, created by researchers at the University of Technology Sydney, uses a stack of coated polymers and a silver film that yields solar reflectance and thermal emittance values near 100%. The material also absorbs just 3% of incident sunlight and keeps the roof’s surface over 50 degrees F. (or 11 degrees C.) colder than a typical commercial white roof. The new surface was created with commercially available plastic materials.

In addition to reducing the urban heat island effect, the study notes that the new technology could improve the efficiency of facility ventilation and air conditioning systems. Furthermore, the researchers tested the design in a variety of environments and found that even in the presence of dirt and grime the material maintains its thermal properties. The results were published in Advanced Science.

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See how professionals like you are taking advantage of the highest performing precision cooling system for their computer rooms and data centers, and why Data Aire is fast-becoming the number one choice for facility managers and building owners looking to decrease their energy consumption. 

Data Aire understands how digital technology and data gravity is rapidly impacting and transforming businesses. That’s why they developed ultra-efficient cooling technology to support the most modern (and not-so-modern) data centers.  Learn how One Wilshire in Los Angeles, one of the most advanced carrier hotels today, is surpassing California's strict energy efficiency requirements with Data Aire’s purpose-built system, which provide full-economization for 260 days – almost 72% of the year. That’s a measurable savings! Furthermore, the projected PUE on an annual basis for a full load is at or below 1.2.


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