Leading plumbing and drainage manufacturer Wavin has expanded its range of sustainable drainage systems (SuDS) with the launch of TreeTank and PolderRoof.
Designed to help cities manage surface water more effectively, the new solutions build on Wavin’s established portfolio, which already includes its AquaCell NG attenuation tanks and its end-to-end single-source stormwater management service, StormForce.
Wavin’s TreeTank system makes it easier to plant and grow healthy trees in urban centres.
Lightweight and fully modular, TreeTank is installed around a planting void filled with uncompacted soil and features built-in pipework for irrigation and ventilation.
The system gives roots consistent access to water, air, and nutrients while guiding growth away from roads, pavements, and underground services. It helps trees to establish faster, supports biodiversity, and prevents costly damage to surrounding infrastructure.
Launching alongside it this Autumn, Wavin’s new PolderRoof system transforms flat underutilised rooftops into smart, water-managing green spaces.
Rainfall is captured in a horizontal attenuation layer, with sensors and connected weather data determining when to retain, reuse or safely release water. The closed-loop approach helps reduce pressure on drainage systems, while creating valuable green roofs that improve insulation and boost biodiversity.
Martin Lambley, Senior Product Manager for Urban Climate Resilience at Wavin, said: "Extreme weather is placing our cities under growing pressure - from intense rainfall to prolonged drought. Combined with rapid urbanisation and an ageing drainage system that is no longer fit for purpose, urban areas are increasingly vulnerable to flooding and surface water risks.
“At Wavin, we are developing innovative, practical solutions that help cities adapt. We are combining smart water management with green infrastructure to create healthier, resilient urban environments which support biodiversity. Our next-generation SuDS approach mitigates flooding and surface water risks while supporting regulation, including Biodiversity Net Gain, helping the wider built environment contribute to national sustainability goals.
“We are constantly striving to turn innovation into real-world impact. Solutions like TreeTank and PolderRoof demonstrate how practical, scalable systems can manage water efficiently, protect infrastructure, and enhance urban green spaces - ensuring cities are better prepared for the challenges of extreme weather.”
For more information on Wavin’s complete urban climate resilience offer, please visit https://wavin.com/gb/solutions/urban-climate-resilience.
