ABG helps write the NFRC guidance notes for Blue Roofs

ABG were part of the NFRC’s Technical Committee, and as a leading manufacturer of blue roof systems, we are pleased to have helped write the industry guidance.

The new technical guidance note on blue roofs from the NFRC has been published, highlighting some of the key design and installation considerations and issues .

The topic of stormwater management, and the associated SuDS ‘best practice’ requirements, is an increasingly important element of construction design.

At the cutting edge of roof design are ‘blue roofs’ - the concept of using the roof or podium areas to temporarily store rainwater during peak storm events, reducing or eliminating the requirement for attenuation capacity elsewhere at ground-level, or via large subterranean tanks.

Blue roofs’ are a change in current thinking, and utilises the roof or podium construction for the attenuation of stormwater during periods of heavy rainfall. It is then released at a controlled discharge rate into the environment, as prescribed by the project’s planning requirements.

The stormwater attenuation requirements are met within the roof or podium build-up, especially on tight urban sites, or where contaminated land is present making other SuDS techniques difficult to employ.

ABG blueroof Blue roof drainage system

ABG blueroof system


ABG’s blue roof system has the ability to provide a SuDS attenuation solution for a new or retrofit development. The drainage/attenuation layers are specifically designed with enhanced water storage capacity, and the discharge is controlled using a patented outlet. 

Designing a green, paved, or ballasted roof in this way, allows storage capacities suitable for a one-in-a-hundred year storm event to be achieved. 

The benefits to the overall project include:

  • An ‘at source’ solution, and at the top of the ‘SuDS Hierarchy’ for planning purposes
  • Controlled storage and release of stormwater in line with SuDS best practice/legislation.
  • Places stormwater attenuation within the footprint of the building.
  • A zero-falls, weatherproofing membrane system.
  • Reduction in number of roof penetrations and RWO’s required.
  • Overall time benefits and cost savings vs. traditional SuDS methods for the project team.
  • Often reducing the requirement, and associated costs involved, for installation of underground tanks.


Blue roof projects from ABG:

Green Intensive Roof, St Paul's Place, Sheffield, UK
ABG blueroof system

ABG blueroof Green Extensive Roof, Huddersfield University
ABG blueroof system

ABG blueroof Green Biodiverse, Moreland Primary School, Islington, UK
ABG blueroof system

ABG blueroof Green Extensive Roof, Rathbone Market, UK
ABG blueroof system

For further information please contact ABG’s Building Team or click the following link:

https://www.nfrc.co.uk/blue-roofs 

ABG blue roof attenuation system
Blue roof installation Blue roof installation
Geocomposites used in the installation of a green roof with blue roof attenuation system
Green roof project using ABG blueroof


NFRC Technical Guidance - Blue Roofs
 

Blue Roof Systems

blueroof offers a new concept in the management of storm water. Changing weather patterns means rainfall events have become more extreme challenging the way water is managed. blueroof utilises the roof construction for the attenuation of storm water releasing it at a controlled rate in the period following the storm. 

more...

ABG blue roof Blue Roof System for Green Roofs from ABG geosynthetics
 

Reference Materials

NFRC Technical Guidance - Blue Roofs
 

Products

Blue Roof Systems

blueroof offers a new concept in the management of storm water. Changing weather patterns means rainfall events have become more extreme challenging the way water is managed. blueroof utilises the roof construction for the attenuation of storm water releasing it at a controlled rate in the period following the storm. 

more...

ABG blue roof Blue Roof System for Green Roofs from ABG geosynthetics
 
 

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