A dark roof is costing you almost $700 extra a year to keep your house cool, experts say

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This article was originally published in The Conversation. If you visit southern Greece or Tunisia, you might notice lots of white rooftops and white buildings to reflect the intense heat and keep residents cooler. It’s very different in Australia. New housing estates in the hottest areas around Sydney and Melbourne are dominated by dark rooftops, black roads and minimal tree cover. Dark colours trap and hold heat rather than reflect it.

Then there’s transport, manufacturing and airconditioning, all of which increase heat. Before aircon, the main way people had to keep cool was through how they designed their homes. In hot countries, buildings are often painted white, as well as having small windows and thick stone walls. The classic Queenslander house was lifted off the ground to catch breezes and had a deeply shaded veranda all about, to reduce heat.

Source: News Formal (newsformal.com)

 

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