Low energy class 1 typehouses according to the Danish building regulations

Jørgen Rose, Jesper Kragh, Svend Svendsen

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In 2005 the Danish Building regulations introduced two low energy classes for buildings in addition to tightened minimum requirements. The low energy class 1 and low energy class 2 correspond to total energy use, i.e. energy use for heating, ventilation, cooling and domestic hot water, as 50% and 75% of the minimum requirement respectively. The main purpose of introducing the low energy classes were to further support and encourage the development of low energy buildings in Denmark. In 2010 it is expected that demands in the Building Regulations are tightened by 25-30% and in 2015 it is expected that the minimum demand will correspond to the low energy class 1 demands of today. In order to secure this development in the building regulations, it is essential to support the development of low energy solutions and demonstrate that the goal is well within reach of the Danish building industry. This paper describes the development of a low energy class 1 typehouse. The house is based on a standard typehouse, and through an optimization process of the building constructions and heating and ventilation systems, the total energy use for the typehouse has been reduced in order to meet the low energy class 1 demands. The paper describes the original typehouse solution, optimization process and detailed simulations of the energy use and indoor climate of the optimized solution.
Original languageEnglish
Title of host publicationProceedings of the 8th Symposium on Building Physics in the Nordic Countries : Copenhagen, June 16-18, 2008
VolumeVolume 3
Place of PublicationCopenhagen
PublisherTechnical University of Denmark, Department of Civil Engineering
Publication date2008
ISBN (Print)978-87-7877-265-7
Publication statusPublished - 2008
Event8th Symposium on Building Physics in Nordic Countries - Copenhagen, Denmark
Duration: 16 Jun 200818 Jun 2008
Conference number: 8


Conference8th Symposium on Building Physics in Nordic Countries
Internet address


  • Building Regulations, total energy use for heating, cooling, ventilation and domestic hot water, optimization, DseeC, low energy classification, typehouses, BE06, building simulations, BSIM 2002


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