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IEA Annex 14: The Zolder Case Study
Author(s) -
Hens H.,
Senave E.
Publication year - 1991
Publication title -
indoor air
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.387
H-Index - 99
eISSN - 1600-0668
pISSN - 0905-6947
DOI - 10.1111/j.1600-0668.1991.02-13.x
Subject(s) - natural ventilation , thermal insulation , architectural engineering , ventilation (architecture) , environmental science , engineering , civil engineering , indoor air quality , environmental engineering , mechanical engineering , chemistry , organic chemistry , layer (electronics)
The Zolder case was one of the six case studies on mould problems and sulface condensation, initiated within the International Energy Agency (IEA) Annex 14 on “Condensation and Energy”. This project, a joint research effort of Belgium, the Federal Republic of Germany, Italy, the Netherlands and the United Kingdom, was completed in March 1990. Complex relations bemeen mould, surface condensation, energy caservation and parameters such as the outdoor climate, the thermal quality of the building, the ventilation and the occupants' behaviour are explained, followed by an analysis of the Zolder‐Lindeman case. This illustrates the extent to which mould may deteriorate the livability of a social housing estate. On three houses, different mitigation measures were evaluated before and after implementation: loft space insulation, inside insulation, double glazing outside insulation, natural ventilation, and demand controlled ventilation. The results for one of the three show that the severe mould problems resulted from the cambination of poor overall insulation quality and the impossibility of ventilating properly. A thermal retrofit, together with the installation of a natural ventilation system, proved to be successful.