By Andrew Yanders
Edited by - Kat Harrold
Photo ~ Jorg Breuning
The FLL Green Roofing Guideline first appeared in 1982 as the “Principles of Green Roofing” and since 1992 has been reworked many times as “Guideline for the Planning, Construction and Maintenance of Green Roofing – Green Roofing Guideline.” It is recognized as the benchmark set of regulations for green roofing in Germany. The FLL Roof Greening Guideline is also widely accepted abroad and serves in some neighboring countries as the basis for developing their own regulations.
This latest edition covers the 2008 edition of the FLL Green Roofing Guideline. The preface clearly states the importance and relevancy of the Guideline and the constant diligence taken to adapt and outline the newest developments in the green roofing industry. The Guideline is the result of unpaid technical and scientific cooperative work and is intended to be a recognized code of practice or State-of-the-Art; it is a basic tool for the planning, construction and maintenance of reliable and high quality performing green roofs. The Guideline also includes transparent, consumer oriented testing methods for the investigation of vegetation, substrates and aggregate drainage materials and the investigation of resistance to root penetration of roof membranes and protective layers.
Three sections of this paper provide a brief summary of the three major components of the Green Roofing Guideline: Planning, Execution, and Maintenance. It is important to note that the Guideline requires a fundamental background in horticultural science and engineering principals. The Guideline is not an IKEA step-by-step construction manual designed to enable any Do-It-Yourself project.
Click here to read the full version.