New York rooftops 40 degrees cooler painted white, reckons NASA/Columbia study

It's long been suggested that white rooftops could help reduce the heat bubble microclimates that surround our cities simply by reflecting solar radiation directly back into space, and in 2010 we reported on NCAR efforts to demonstrate the effect through computer modeling. A new study goes one better, putting the theory into practice and pitting three white materials against one another on three New York rooftops. The results of the study appear to be overwhelmingly positive, with white roof coatings reducing peak rooftop temperatures in summer "by an average of 43 degrees Fahrenheit (about 24 degrees C).".. Continue Reading New York rooftops 40 degrees cooler painted white, reckons NASA/Columbia study

Section: ecoGizmo

Tags: Climate, Columbia University, NASA, Paint, Urban

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Takuma Aoki Hiroshi Aoyama Shuhei Aoyama