TITLE

Energy Efficiency of Social Housing Existing Buildings -- A Portuguese Case Study

AUTHOR(S)
RODRIGUES, Maria Fernanda; VICENTE, Romeu da Silva; CARDOSO, José Claudino
PUB. DATE
April 2011
SOURCE
Gazi University Journal of Science;2011, Vol. 24 Issue 2, p309
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The European energy performance building regulations, Directive 2002/91/EC - Energy Performance of Buildings Directive (EPBD) of the European Parliament and Council, require that new buildings present minimum standards of energy efficiency. Accordingly the Portuguese regulations require that new buildings comply with minimum requirements on the energy performance and must have an energy performance certification through witch an energy efficiency label is attributed to the housing. It also require that existing buildings must have an efficiency energy label when submitted to a commercial transaction or to a deep rehabilitation. To achieve this goal the study of energy performance of existing buildings must be done. As many essentials elements to determine the U-factor and other thermal parameters are unknown, Portugal developed a simplified methodology to achieve the thermal performance of existing buildings. The aim of this paper is to present the study of the energy performance of a set of social dwellings that were constructed during the decade of 80, constructed before the former building thermal comfort specifications came into force. During the study the referred methodology was applied and conclusions of the energy efficiency label obtained were put out as the encountered difficulties. The study also compares the results obtained by the simplified methodology and by the detailed methodology that is required by Portuguese building thermal comfort specifications.
ACCESSION #
66297643

 

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