White, green or black roofs? New report compares economic payoffs

Looking strictly at the economic costs and benefits of three different roof types—black, white and "green" (or vegetated)—Lawrence Berkeley National Laboratory (Berkeley Lab) researchers have found in a new study that ...

Making green roofs greener

Did you know that Toronto is covered in green roofs? Well, it's covered in roofs that were once green. Nobody knows if they still are.

Classification system proposed for green roofs

Green roofs (or living roofs) are becoming a growing trend in North America – and have been long established in Europe – for their value in conserving energy, improving air quality, managing storm water runoff, beautifying ...

Turfgrass tested in shallow green roof substrates

Green roofs, rooftops covered with vegetation, provide multiple environmental and aesthetic benefits. These "living roofs" are increasing in popularity worldwide. As more cities invest in green roofs, planners are challenged ...

Lady bug, lady bug, eat up

(Phys.org) —Early morning raindrops, hanging on the leaves of Virginia Commonwealth University's Pollak Building's rooftop garden, acted as welcomed drinks of water for 1,500 lady bugs as they were introduced to their new ...

Plants help lower temperatures

(Phys.org)—As Melbourne swelters through another heat wave, scientists are using thermal imaging to work out how plants can be used to reduce the severe temperatures in our cities.

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