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The next level of energy performance of new buildings within the European Union will be the Nearly Zero-Energy Building (NZEB). A lot of work has been spent on pilot and demonstration buildings on this and also even higher energy performance levels throughout all EU countries. However, most of the high performance buildings realised so far result in higher investment costs when compared to the current national minimum energy performance requirements. The considerably higher investment costs are one of the main barriers to the early application of the NZEB-level in Europe. The EU H2020 project CoNZEBs works on technical solution sets that result in lower investment costs for NZEBs, bringing the costs close to those of conventional new buildings. The focus is on multi-family houses. In each of the four participating countries Germany, Denmark, Italy and Slovenia a team of researchers is analysing which sets of marketready technologies at the building envelope, the services systems for heating, domestic hot water, ventilation and cooling (where required) in combination with renewable energy systems can fulfil the NZEB requirements at lower costs than those incurred by the national mainstream NZEB application. Additional efforts are being spent on the life-cycle costs and the life-cycle analysis of the solution sets, as well as on the impact of future developments of primary energy factors, energy costs and technology efficiencies.

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Das wissenschaftliche Begleitvorhaben "WiTraBau" verfolgt das Ziel, forschende Stellen bei der Entwicklung von Strategien zur Verwertung ihrer Forschungsergebnisse zu unterstützen. Die neu entwickelten Dämmstoffe SULFOAM, EcoSphere, THELMA, AeroBasalt und AeroPutz werden durch WiTraBau begleitet und exemplarisch vorgestellt. Diese Metadaten wurden zur Verfügung gestellt von der Literaturdatenbank RSWB®plus