img(height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2939831959404383&ev=PageView&noscript=1")

Permavoid stores water at source for irrigation

Net zero system from Polypipe features a raft of connecting water storage cells that sits beneath highways or hard landscaping to feed nearby trees and plants in dry spells

In association with
Polypipe's Permavoid system is suitable beneath asphaltic, block-paved or concrete pavements and for the full range of traffic conditions from domestic driveways to highways.
Polypipe's Permavoid system is suitable beneath asphaltic, block-paved or concrete pavements and for the full range of traffic conditions from domestic driveways to highways.

Permavoid is a breakthrough shallow invert geocellular sub-base replacement system designed to manage surface water at source. 

Cells are interconnected using geometric ties to create a uniform structural raft with exceptionally high load-bearing characteristics. Having the ability to store water safely immediately beneath a finished surface allows a Permavoid raft to be used for irrigation.

Urban greening such as a blue-green roof or surface planting across a public realm can be sustained by drawing stored water from the raft through special wicking cones to the soil above. 

This unique, net zero feature enhances resilience - preserving plants and ecosystems through extended dry spells - improves community health, reduces the heat island effect and lowers overall potable water consumption.

Manufactured from 100 per cent recycled polymer, Permavoid can be used to attenuate and manage water at roof, podium or ground level. 

Its shallow invert makes it ideal for projects where there is a high water table, contaminated brownfield land or where there is a shallow outfall - a situation where conventional deep buried surface water storage tanks would require additional pumping.

Permavoid can also be adapted to provide high performance surface water treatment of hydrocarbons, heavy metals and contaminated silts. 

  • Permavoid products include biomats, rainwater diffuser units, capillary cones and more.
    Permavoid products include biomats, rainwater diffuser units, capillary cones and more.
  • The Permavoid system comprises high strength modular cells suitable for sub-base replacement.
    The Permavoid system comprises high strength modular cells suitable for sub-base replacement.
12

For more information and technical support, visit polypipe.com/permavoid

 

Contact:

01622 795200

civilsenquiries@polypipe.com


 

Latest

Create a centre of conservation excellence in Norfolk, design an artistic trail through an Oxfordshire housing development, work on the regeneration of a County Durham harbourside - some of the latest architecture contracts and competitions from across the industry

Latest: Norman church preservation

There’s a distinct theme of preservation in this selection of must-reads, looking at historic materials, restoration and retrofitting, and why we should design out hazardous materials

Investigations into indoor air quality, retrofitting historic buildings and heritage materials

We need to boost our vocational workforce, which starts with the buildings that deliver the training. Funding, planning and the role of the architect are critical

Ways to design buildings that enable effective teaching

Cute memes, south London modernism and frank reflections on life and work all caught readers’ attention this year, along with bio-based materials in all forms

Cute memes, south London modernism and refections on life and work all caught readers’ attention this year

The longlisted entries for the 2025 MacEwen Award are proof that architectural projects of any shape or form can bring significant benefits to communities

Thirty projects that engage with inclusion, sustainability, communities and health