Thursday, July 28, 2016

Looking to beat the heat and save money?

Public Release: 31-May-2016
Looking to beat the heat and save money?
Concordia researcher shows cool roofs cut energy consumption year-round
Concordia University

As the summer heats up, so do cities. That's true not just for hot places like Los Angeles and Phoenix, but also for cooler capitals like Ottawa and Reykjavik.

Regardless of latitude, urban temperatures are typically several degrees higher than those of nearby suburban and rural areas. The resulting "heat islands" mean increased discomfort, higher air-conditioning bills and denser smog.

A major culprit? Hot roofs baked by the sun. The solution? Cooling down those roofs by using reflective surfaces -- and doing so even if those cities are covered in snow for several months of the year.

A new study published by researchers from Concordia University in Montreal in Energy and Buildings confirms that, contrary to the belief that cool roofs won't work in colder climates, they actually provide net energy -- and monetary -- savings.


"In cooler climates, installing cool roofs may even prevent buying an air conditioner altogether. Even in non-air-conditioned buildings, cool roofs improve comfort during hot summer days. And in extreme cases, these roofs may even save lives by reducing the risk of heat stroke."


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