FAQ - GreenBlue Urban

Questions and answers

What are the advantages of the RootSpace ArborSystem?

GreenBlue Urban’s RootSpace is the world’s original soil cell, manufactured from 100% recycled plastic, rated for H-20 vehicular loading with minimal surface, and boasts the largest soil volume in the industry – to list just a few of its many benefits.

Is RootSpace approved?

RootSpace ArborSystem and its bioretention application known as ArborFlow have been approved by numerous state authorities across the country and internationally including the Department of Environmental Quality, Department of Ecology, Environmental Protection Agency, Department of the Environment, and more, in addition to many municipal-level approvals.

How does your product perform in freeze/thaw conditions?

RootSpace has been installed in hundreds of locations with freeze/thaw conditions, including Northern USA, Canada, and Northern Europe. The nature of the void space within RootSpace soil cells provides ample room for expansion and contraction, and thus no issues in freeze/thaw conditions.

Where are your products manufactured?

GreenBlue Urban’s systems are manufactured in the United States, Canada, and the United Kingdom.

How long does RootSpace ArborSystem last / what is the life expectancy of RootSpace ArborSystem?

RootSpace ArborSystem is designed to outlast the infrastructure it’s installed in, but in reality the system will significantly outlive the infrastructure around it because it’s manufactured from 100% HDPE which is only broken down by UV light which its unaffected by because of being buried underground. There are GreenBlue Urban ArborSystem installations that date back to 1992.

Will the tree roots break the RootSpace system / will the RootSpace system girdle the tree roots?

RootSpace soil cells are designed with large apertures to provide vast unrestricted growth for tree roots. When a root does grow into an Upright Panel (or “leg”) of the RootSpace structure, it breaks into fibrous rooting around the Upright Panel and continues its growth without harm to the system. For more details on how roots colonize in RootSpace, download our Roots in Soil Cells report.

How much longer will a tree in RootSpace ArborSystem live versus a tree in a typical urban planting application?

RootSpace ArborSystem replicates the “forest” environment that a tree requires to thrive, and therefore a tree planted in RootSpace will theoretically live as long as a tree in a forest setting, assuming that the amount of the system used is sufficient for the particular tree species.

How much does the RootSpace ArborSystem cost?

The average cost of the system is $6 to $7 USD per cubic foot ($275 to $320 CAD per cubic meter) (which includes RootSpace soil cells, Irrigation/Aeration, Root Management, and filterfabrics/geogrids).

Didn't find what you were looking for? get in touch.

GreenBlue Urband Ltd

2533 Hoitt Avenue
Knoxville, TN 37917
United States

E: [email protected]
T: 1-866-282-2743


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