Conventional tree wells are nothing more than containers set into the ground. Tree roots are restricted to this confined area surrounded by densely compacted soils. With very little oxygen, moisture and nutrients available, the roots often grow into the weakest available fissures and seams, which is usually the interface area between the compacted base and sub-soil or paving surface. It's this process that causes the heaving and fractures we see in sidewalks, roadways and parking lots every day.
These cracks, lips, and undulations have become a huge liability for cities as they are responsible for a large volume of trip and fall injuries every year.
Besides the safety issue, the conventional tree pit and its confined growing environment are responsible for the premature death of many of our street trees. Cities incur the additional costs of removal and replacement in one half or even one third of the tree’s normal life span.
CU-Soil® provides trees with a vast, oxygen-filled root zone, deep beneath sidewalks, parking lots and roadways. These trees grow faster, develop thicker canopies and live longer. They provide more shade, more cooling of heat islands, more noise reduction, air and water filtration and many more measurable benefits to our cities and residents.