The healthy city of tomorrow needs not only good infrastructure for people but also for water. For less urban flooding, cleaner water, more greenery, and a better quality of life. ROCKWOOL Rainwater Systems' infiltration buffers provide a solution that occupies no space above ground and creates ample space underground for water buffering. A modern solution for the modern city.
With underground Rockflow water attenuation and infiltration systems, we quickly capture rainwater during cloudbursts. The dense fibre structure of stone wool filters runoff water, ensuring cleaner groundwater and surface water. And by returning the captured water to the ground through infiltration, the natural water cycle in the city is protected.
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Stormwater runoff from the surrounding area flows into the Rockflow system via a street gully or manhole. The stone wool acts like a large sponge retaining the water. This effectively prevents flooding during heavy rain.
CollectRunoff rainwater often contains unwanted harmful substances from roofs, cars, and streets. Rockflow stone wool not only retains water but also has a purifying effect. Thus, suspended particles and chemical pollution are filtered out of the water.
FilteringThe collected and cleaned water is slowly returned to the ground. There, the water is again available for surrounding trees and greenery. This is how Rockflow contributes to a natural water cycle in built-up areas.
InfiltrationAs the Rockflow system is filled with water from below, the air escapes at the top through the ventilation duct. This allows the system to fill with water in no time at all.
You can find our Rockflow infiltration systems beneath cycle paths, roads, and even tram tracks or buildings. Or as blue-green swale and close to urban green spaces.
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With a central buffer under squares or parks, water from the surrounding area is led to a central location, collected and infiltrated or discharged into the sewer.
Monitoring in ZevenaarOften, the available underground space for stormwater storage in urban areas is very limited. Thanks to the high load-bearing capacity and flexibility of Rockflow, space for rain is also made under tram tracks.
Amsterdam Nieuwe Zijde NoordA smart climate swale with stone wool can be installed shallower and therefore safer, retain water for planting, and buffer cloudbursts.
Climate bioswale ZoeterwoudeIn sewer renovation projects or new constructions, a Rockflow water storage and infiltration system replaces the rainwater sewer. Rainwater is no longer transported but is directly infiltrated locally. The Rockflow system is often installed as linear infiltration next to the foul water sewer under the road.
MaasbrachtNatural infiltration of rain near urban green keeps the soil moist, which helps plants and trees flourish and reduces irrigation moments during dry periods.
