2002 North America Soil Stormwater 
Green Roof Technology
APRIL 3, 2018
Rooftop farming for educational and recreational purposes seems a fancy trend in North America. In 2002 Dipl.-Ing The soil layer (growing media) including granular drainage is 27 inches deep and consists of a blend of porous volcano material like Lava rock and Pumice - materials in which grapes develop their unique taste.
Green Roof Technology
APRIL 3, 2018
Rooftop farming for educational and recreational purposes seems a fancy trend in North America. In 2002 Dipl.-Ing Ing Markus Wittling was planning to elevate an entire vineyard on top of the Wine Museum in Cologne, Germany. The sloped green roof spans over the entire museum building of almost 20,000 square feet.
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