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Airtightness requirements for high performance building envelopes

 
: Erhorn-Kluttig, H.; Erhorn, H.; Lahmidi, H.; Anderson, R.

Air Infiltration and Ventilation Centre -AIVC-, Coventry; Energie- und Umweltzentrum am Deister -EUZ-, Springe-Eldagsen; Fraunhofer-Institut für Bauphysik -IBP-, Stuttgart:
4th International Symposium on Building and Ductwork Air Tightness, BUILDAIR & 30th AIVC Conference "Trends in High Performance Buildings and the Role of Ventilation" 2009. Reader : 1. - 2. Oktober 2009 in Berlin, with accompanying trade fair; complete contributions
Springe-Eldagsen, 2009
pp.152-153
International Symposium on Building and Ductwork Air Tightness (BUILDAIR) <4, 2009, Berlin>
Conference "Trends in High Performance Buildings and the Role of Ventilation" <30, 2009, Berlin>
Internationales Symposium "Luftdichtheit von Gebäuden und Lüftungssystemen" <4, 2009, Berlin>
Tagung "Entwicklungen bei Hocheffizienten Gebäuden und die Rolle der Lüftung" <30, 2009, Berlin>
English
Conference Paper
Fraunhofer IBP ()

Abstract
International building legislation is setting stronger and stronger requirements for the energy performance of buildings. An actual example is the impact of the Energy Performance of Buildings Directive in the European Union (EPBD) on the national requirements in the Member States. The improved energy performance of buildings can't be achieved by additional insulation or more effective buildings systems only. A major influence factor on the energy quality is the ventilation technology and also the airtightness of the building envelope. Some countries include in their energy decree already maximum air change rates, partly for all building types, partly only for those that include a mechanical ventilation system. Especially for high performance buildings which go beyond the national requirements, the infiltrations losses become a significant factor to the energy performance. The paper is based on the work in the EU project ASIEPI (Assessment and Improvement of the EPBD Impact (for new buildings and building renovation) and presents an overview on the existing airtightness requirements in different European countries and the US. These requirements are opposed to airtightness requirements for high performance buildings in Germany (passive house), France (effinergie label) and the US (energysmart home, RESNET). Measurements of the envelope airtightness right after construction and some years later show the practicability of the requirements.

 

Dieses Dokument basiert auf der Arbeit des EU-Projektes ASIEPI [Assessment and Improvement of the EPBD Impact (für neue Gebäude und Renovierungen)] und präsentiert einen Überblick über die bestehenden Luftdichtheitsanforderungen in den verschiedenen europäischen Ländern und der USA. Diese Anforderungen sind den Anforderungen in Deutschland (Passivhaus), Frankreich (effinergie Label) und in den USA (energysmart home, RESNET) gegenüberzustellen. Messungen der Luftdichtheit der Hülle gleich nach der Fertigstellung des Baus und einige Jahre später zeigen die Umsetzbarkeit dieser Anforderungen.

: http://publica.fraunhofer.de/documents/N-145900.html