Airtightness Assessment of Single Family Houses in Belgium
Airtightness Assessment of Single Family Houses in Belgium
复制标题
比利时独栋住宅的气密性评估
DOI:
10.1080/14733315.2014.11684031
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Arnold Janssens, PhD
中科院分区:
文献类型:
--
作者:
Jelle Laverge, PhD;M. Delghust;Nathan Van Den Bossche, PhD;Arnold Janssens, PhD
Abstract Airtight construction lies at the heart of achieving high energy performance in dwellings. But how well does it apply in new construction? This paper presents results from airtightness measurements on 44 randomly selected, standard new built single family houses in Belgium and from 4 case studies including 78 additional measurements. The houses were randomly selected after completion, to assure that standard workmanship was used during construction. Where applicable, the effect of incorporating the attic and garage in the building volume was measured by performing a series of tests in different configurations. The results are compared with those from a previous study in the early 1990’s, with a database that was compiled with results from 161 air tightness reports executed on newly built dwellings by private party consultants and with the governmental EPBD-database (1884 measurements). The results show that the mean leakage rate is about 6 ACH50 for the randomly selected houses and 3 ACH50 for the houses in the databases. The houses in the databases are measured upon the initiative of the owner. Therefore, the attention to airtight workmanship is substantially higher for these cases than in the randomly selected houses. This clearly demonstrates the difference between ‘mainstream’ workmanship and results obtained by the ‘engaged’ market.