Wow. Green Roofs and Hemp in One Post.

An important part of any green roof is the filter cloth (it keeps the soil from clogging the roof drains, which can lead to roof failure) . ELT, the maker of the Green Wall technology we showed recently, also makes pre-grown green roofs. They have a "bioblanket" that is both the necessary filter and a root retention system, made of a 50/50 mix of polyester and, you guessed it, hemp. Now if they grew bamboo on the roof we would have the perfect TreeHugger product. ::Elevated Landscape Technologies

Read more on Green Roofs in TreeHugger here.

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