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Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau e.V. (FLL) Richlinien für die Planung, Ausführung and Plege von Dachbegrünung Now you know why we just call them the “FLL Guidelines.” The FLL is the Research Society for Landscape Development and Landscape Design (Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau e.V.). For over 15 years, the German FLL Guideline for the Planning, Execution and Upkeep of Green-Roof Sites have been the only source of reliable information for green roof designers – German or American. The Guide covers all aspects of green roof design, including (but not limited to) designing appropriate media (engineered soil) for different applications; selecting plants palettes, and managing drainage. The FLL has also developed specific tests:
Until similar American standards are published by the ASTM or other American standard-setting organizations, the FLL guidelines and test procedures represent the only accepted standards for green roof materials. Potential purchasers of green roof systems should determine if these systems comply with FLL recommendations. The cost is $70 (including handling and shipping) To purchase the FLL Guidelines with a credit or debit card through PayPal, please click the FLL logo below and follow the directions. To purchase the FLL Guidelines with a check or money order, mail a check or money order drawn on a US financial institution and made out to Roofscapes, Inc., as follows: |