What’s the difference between tree filters and tree pits?

Do StormTree systems require proprietary “structural cells” or other infrastructure to prevent soil compaction and suspend and support pavement?

Do StormTree systems require the use of “structural soil” or other proprietary stone-base soils in their systems?

What about the tree? Is this one of those closed box “tree coffins”?

What type of tree can we use?

How long will the tree last?

As the tree matures, will its roots eventually cause sidewalk upheaval or lifting?

Can StormTree systems be installed without underdrain pipes?

Can I specify my own soil mix or “recipe” for your systems?

How do you ensure proper contractor installation of your systems?

What type of grate can be used with these systems?

Can an engineer or landscape designer specify a particular style and dimension of grate?

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U.S. Patent Nos.


Other patents pending




24 Corliss Street, Suite 9092

Providence, RI 02940