GRO is a partnership of Industry and Stakeholders coming together to develop guidance for specification, design, manufacturing, installation and maintenance of Green Roofs.
The GRO code is the result of unpaid technical cooperation across the UK green roof industry. Due to the manner in which this document was created it can be considered to be the result of professional expert work.
The GRO code is intended to be recognised as a code of best practice and as such it should be used to guide behaviour relating to green roof design, specification, installation and maintenance. However, there will be special cases where additional considerations will need to be made. Every user of the GRO code is responsible for their own actions, and acts at their own risk.
GRO recognises that the FLL (Forschungsgesellschaft Landschaftsentwicklung Landschaftbau’s (Landscape Research, Development and Construction Society), Guidelines for the planning, execution and upkeep of green roof sites, is a sound base from which to establish a minimum recommendation for green roof specification, installation and maintenance. It is recommended that all parties using this Code and requiring greater technical detail, should have a copy of the most recent version of the FFL Guidelines to hand, which can be purchased from www.fll.de.
The GRO Green Roof Code of Best Practice for the UK 2011