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Root Space

The GreenBlue Urban RootSpace® system is essentially a pavement support system – designed for maximum soil and rooting volume, to be ‘utility friendly’, with economic freight and industry-leading strength characteristics.

In 2001, GreenBlue Urban produced the world’s first purpose made commercial structural soil cell for urban tree planting. Since that time, thousands of trees have benefited and continue to benefit, from access to uncompacted soil volumes – beneath heavily engineered pavements and roadways.

RootSpace® is the next generation soil protection product, developed by GreenBlue Urban to reduce cost, cut down installation time, and incorporate industry leading soil aeration methodology – a vital and often overlooked component in tree pit design.

RootSpace G2

GreenBlue is very proud to announce a relaunch of RootSpace with some excellent improvements

  • New 400mm high version to enable a wider range of tree pit depths – now 5 different height configurations
  • Faster, simpler and easier assembly process
  • Further increase the load bearing capacity
  • Enable easy re-excavation for maintenance of utilities

For full specification including loading – scroll down to the specification area.

Benefits

  • Optimum conditions for soil biology maximising root growth & tree health
  • Very fast, simple and easy to assemble reducing installation time & costs
  • Designed for easy integration, and re-excavation for maintenance, of utilities
  • Minimum carbon footprint with 100% UK manufacture
  • Minimum excavation depths required
  • Can be used close to highways due to world-leading lateral performance

Features

  • 100% recycled polypropylene
  • Only 2 main interlocking components
  • Very open format with more than 95% soil void space
  • Highly engineered lattice structure optimising world lead strength v. cost ratio
  • Unique lid creates essential air zone above soil
  • Unique interlocking structural side panel

Technical

Material100% recycled polypropylene
Manufacture location  

 

Injection moulded in UK

 

CodeDescriptionHeightWidthBreadth
GBURAC600ARootSpace 600 Upright600mm500mm90mm
GBURAC500ARootSpace Airflow Lid75mm500mm500mm
GBURSP65ARootSpace 600 Infill527mm334mm40mm

 

CodeDescriptionHeightWidthBreadth
GBURAC400BRootSpace 400 Upright400mm500mm75mm
GBURAC500BRootSpace Airflow Lid75mm500mm500mm
GBURSP45PBRootSpace 400 Infill327mm334mm40mm

 

ConfigurationConfiguration heightCrushing load capacity
400mm Upright475mm434.0 kN/sqm
600mm Upright675mm308.0 kN/sqm
2 x 400mm Uprights875mm297.7 kN/sqm
1 x 400mm + 1 x 600mm Upright1075mm285.7 kN/sqm
2 x 600mm Uprights1275mm285.7 kN/sqm

The following table gives the minimum allowable paving construction depths required to disperse a 4.5 tonne wheel load (as an example) on different RootSpace configurations (this is based on a typical macadam type road construction and the standard tree pit detail of GBU specification):

RootSpace configurationHeightSubbase DTp Type 1 depthMacadam depth *Total depth
400 single475mm150mm150mm300mm
600 single675mm300mm150mm450mm
400 + 400875mm300mm150mm450mm
400 + 6001075mm325mm150mm475mm
600 + 6001275mm325mm150mm475mm

* Total depth of bound bituminous layers (Minimum construction depths for a full range of wheel loads are available separately)

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