Green building envelope for wastewater treatment plant
Initial situation and concept:
The Rosenbergsau wastewater plant in Au is being expanded with an additional building that will house a new treatment stage for wastewater processing. This new stage removes micropollutants from the wastewater of the connected communities, making an important contribution to environmental protection.
With this new building, the operators are sending a clear message in favor of greater sustainability: the structure will feature a green facade and a planted roof, both of which will help improve the CO2 footprint and provide natural cooling.
The vertical greenery will include, among other species, hops, honeysuckle, clematis, field rose, and red- and white-fruited bryony. Covering a total area of around 700 square meters, the vegetation on the roof and facade will make a significant contribution to capturing CO2 and keeping the building cool.
Planning and implementation:
Jakob Rope Systems was responsible for planning and installing the trellis structures for the green facade. The project uses the stainless steel Webnet system with sleeves, featuring a 2-millimeter rope diameter and a mesh size of 160 millimeters. In total, around 390 square meters of mesh surface were installed. The structure is supported by 270 spacers mounted on the exposed concrete facade.
Jakob products and services:
- Specialist planning and installation of the trellis structures made of Webnet and stainless steel ropes
- Webnet, mesh size 160 mm, Ø 2 mm rope diameter, total installed: 387 square meters
- Edge ropes, Ø 6 mm, 6x7+WC, total 499 m
- 270 spacers
Project partners:
Building owner: Rosenbergsau wastewater treatment plant
Landscape architecture: AFRY Schweiz AG
Trellis structures: Jakob Rope Systems








