Green Roofs: Building for the Future
A Blog worth a review -
points out that Germany spearheaded the modern movement back to grassy rooftops.
With
today, roughly 14 percent of the country's total roofs are greened, the industry continues to grow 10 percent per year and some German cities actually levy a "rain tax" on non-greened, asphalt rooftops.
The blog puts forward
- it helps mitigate storm water runoff
- roof research program claims that it retains between 60-100 percent of rainfall
- combat "urban heat island effect," a phenomenon that essentially means that cities are hotter -- by roughly 10 degrees Fahrenheit -- than their surroundings.
- protected from ultraviolet radiation and the extreme fluctuations in temperature that cause roof membranes to deteriorate, green roofs offer longer roof life -- they can last up to 40 years - and lower roof maintenance
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