The new FLL guidelines
In July 2018, the Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau e. V. (Research Society for Landscape Development and Landscape Construction; FLL) published a fundamentally revised edition of the “Richtlinien für Planung, Bau und Instandhaltung von begrünbaren Flächenbefestigungen” (Guidelines for the Design, Construction and Maintenance of Paved Areas Suitable for Greening). A clear distinction is now made between “pavers with grass joints”, “grass pavers”, and other types of construction. Four illustrations show the layer structures for different loading situations. The first...
