VersiDrain® BST is an extensive green roof planting tray used to create biosolar flat roofs. The modular trays are made from UV-stabilised recycled polypropylene, which makes them lightweight and robust.
Wall extenders can be affixed on any of the four sides of each tray to accommodate deeper planting depths and the possibility of establishing a border around the green roof.
VersiDrain® BST creates a monolithic reservoir on the green roof, allowing maximum greenery and higher efficiency of solar energy generation.
Rainwater that falls onto the unsheltered tray filters through the planting media and is collected in the tray’s reservoir. As the rainwater levels out in the reservoir, excess water is distributed to adjacent trays sheltered by solar panels or roof structures. This ensures adequate irrigation for the entire green roof.
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