In connection with the announcement of competitions for several of Bergen municipality's Department for Development's projects, we would like input from relevant industry parties on strategies and initiatives that can contribute to: * increase the consumption of ventilation channels in relevant projects, as an effective measure to reduce the extraction and use of costly natural resources, waste amounts and climate gas emissions. * stimulate the development of value chains and market participants who can facilitate for increased re-use of ventilation channels compared to the current level.