Planting trees on top of an underground parking garage

In December 2017, multi-trunk robinia trees were planted at De Munt (Roeselare, Belgium), on top of an underground car park, to create more "volume" on the square. Almost 3 years after planting, the trees develop optimally thanks to a specially selected tree substrate including TerraCottem soil conditioner.

Project description:

• Location: De Munt, Roeselare (Belgium) – Town square between the Noordstraat and the Ooststraat.
• Client: City of Roeselare, Belgium
• Design: Tuin- en Landschapsarchitectuur Lieven Vereecke - Tielt
• Contractor: Tuinen Vanallemeersch – Deraedt BV - Gits
• Trees: multi-trunk Robinia's.
• Planting date: December 2017
• Substrate: Vulkatec Tree 0/32 (Disaghor - Dockx)
• Pressure-reducing sandwich construction: Permavoid 150 mm (TGS NL)

Waterbuffering compartments were created on top of the car park, which collect the water from the high-rise building with an overflow to the sewerage. On top of a pressure-reducing sandwich construction, a waterbuffering substrate was used, including TerraCottem soil conditioner, to further increase this water buffer as well as the soil aeration.