Stormwater management in urban areas is a growing social challenge

Stormwater management in the future will be conducted through the implementation of various solutions systematically. Retention of water on roofs and in their immediate surroundings is an example of a solution. Together with Trondheim municipality the centre has the finalized the field station for testing of blue-green / gray roof at Høvringen. The facility has been established to develop roofing solutions that can be active elements in the urban stormwater management. We have equipped the field station with its own meteorological station and an advanced system for measuring the amount of water passing through each of the three experimental plots. We can measure the full range of drip to extreme precipitation. The first roofing solution we are testing is developed in collaboration with Saint-Gobain Weber Leca and Skjæveland group. The aim of the roof is to provide good retention capacity and at the same time serve as an attractive outdoor area.

Photos above from Høvringen pilot project November 2016.

Stormwater may be contaminated and must sometimes be cleaned before it can be released into nearby rivers and lakes. More precipitation and dense surfaces will provide larger amounts of water that must be treated and local treatment measures are preferable. Klima 2050 has tested a new filter material and examined how effectively filter removes chemicals used at Norwegian airports. The work was performed in collaboration with Saint-Gobain Weber Leca and Avinor. The filter also has the potential to clean stormwater from roads and Statens Vegvesen has also participated in the work. The results are very promising and we are working now to upscale the technology and do tests in pilot projects. Two partners have initiated discussion of combining the respective product (filter material and filter housing) to a new complete filter suitable for purifying the water locally.