Soil Cells

The CUPOLEX SOIL CELLS system involves advanced concrete design geometry to produce the latest generation of under pavement soil cells for urban trees that can be adequately provided for in their urban setting.

Trees in cities are almost universally seen as a very desirable and indeed a hugely beneficial part of our lives. Tree health and longevity depends on the provision of quality soil for the tree roots. Providing an adequate volume of non-compacted soil beneath pavements is an issue that arborists, landscape architects and engineers have been debating for decades.

The elevated CUPOLEX SOIL CELL pavement supported by the matrix of columns formed by the Rialto tubes allows the system to support high loads. The elevated CUPOLEX RIALTO structure and the void created below the slab can be used to contain quality and unlimited soil-volumes, creating structurally beneficent and strong structure systems that are conducive to root growth while supporting any pavement design.


  • Enables trees to accept, store and transmit water, nutrients and energy
  • Provides room in which roots can propagate. Rialto creates space below the pavements which is required for good soil life and the necessary biochemical exchanges to promote tree growth
  • Roots do not colonize the area immediately underneath the paved surface, thus preventing structural pavement damage
  • Solid and compacted ground for pavements is not required


  • Can be designed to support any vehicular traffic
  • Allows for root breakout from the soil cells into surrounding soils
  • Provides a complete opened void allowing for easy flow of water into and out of the soil
  • Time tested technology with over 500 million m² installed
  • Proven track record
  • Urban trees can be adequately provided for in their urban setting


  • Parking Lots
  • Streetscapes
  • Roadways
  • Footpaths
  • Plazas
  • Green Roofs
  • Break-Out Zones.
  • Medians

Products for Soil Cell

Cupolex Products

Cupolex Soil Cell

Cupolex Products

Cupolex Soil Cell


San Vito al Tagliamento

PONTAROLO ENGINEERING SPA have been working in the construction business for over 55 years.
+39 0434 857010

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