A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Detecting points of unintentional ventilation
The air tightness of Finnish single-family houses has been studied during the past five years in many research projects by the Department of Civil Engineering at Tampere University of Technology. Some studies on techniques to improve air tightness have also been conducted. Unintentional ventilation through exterior walls, ceilings and base floors has many harmful effects. This paper presents the results of surveys on three quite similar buildings built in the 1940's or 1950's. The initial condition of the buildings was inspected thoroughly by several thermal surveys. The air tightness of the houses was tested by the fan pressurisation method The points of air leakage were located by comparing the thermal images taken before and during depressurisation. The owners of the houses received instructions on how to improve the air tightness of their houses. After the repairs were done, the test procedure was repeated. Comparison of the results of before-and-after measurements indicated the effect of the repairs. In most cases the repairs were not done as well as possible or not as comprehensively as instructed. Yet, the air tightness of all buildings improved.
Detecting points of unintentional ventilation
The air tightness of Finnish single-family houses has been studied during the past five years in many research projects by the Department of Civil Engineering at Tampere University of Technology. Some studies on techniques to improve air tightness have also been conducted. Unintentional ventilation through exterior walls, ceilings and base floors has many harmful effects. This paper presents the results of surveys on three quite similar buildings built in the 1940's or 1950's. The initial condition of the buildings was inspected thoroughly by several thermal surveys. The air tightness of the houses was tested by the fan pressurisation method The points of air leakage were located by comparing the thermal images taken before and during depressurisation. The owners of the houses received instructions on how to improve the air tightness of their houses. After the repairs were done, the test procedure was repeated. Comparison of the results of before-and-after measurements indicated the effect of the repairs. In most cases the repairs were not done as well as possible or not as comprehensively as instructed. Yet, the air tightness of all buildings improved.
Detecting points of unintentional ventilation
Nachweis von Stellen unbeabsichtigter Ventilation
Suonketo, Jommi (author) / Korpi, Minna (author) / Aaltonen, Anu (author)
2009
5 Seiten, 5 Bilder, 1 Tabelle, 1 Quelle
(nicht paginiert)
Conference paper
Storage medium
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016
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| Taylor & Francis Verlag | 2006