Filterra Roof is Stormwater360's latest winning innovation

23 June 2022

The Stormwater360 team were thrilled to be awarded the 2022 WSP Innovation Award at the Water NZ Stormwater Conference  for our latest stormwater treatment innovation, the Filterra® Roof.

Filterra Roof is an innovative solution to New Zealand’s leading stormwater contaminant of concern, zinc.  Research into zinc pollution in New Zealand has shown that zinc concentrations in urban stormwater can be over 100 times the concentration advised for the protection of aquatic environments, with the largest source of zinc being from existing galvanised roofs. 

Stormwater360 Filterra is a high flow biofiltration system developed and made in New Zealand. Filterra uses natural physical and chemical processes to remove pollutants from stormwater and assimilate them into the biomass of the plants grown in the system. 

Filterra Roof applies this technology in a small modular system ideal for retrofit onto an existing galvanised roof

Testing performed at the University of Canterbury demonstrated 99.6% removal of dissolved zinc from three existing galvanised roofs, eliminating zinc from the stormwater discharges with a medium effluent quality of only 3 ug/l. 

Easily scalable, Filterra Roof is available now for retrofit onto any existing roofs across New Zealand.

Talk to one of our team to find out more via [email protected]