Mid-term and long-term changes in building airtightness: A field study on low-energy houses
نویسندگان
چکیده
The main objectives of this paper are to quantify and qualify changes in building airtightness on different time scales, identify factors that may explain the variations observed. A special measurement protocol, based ISO 9972 but with some additional requirements, was defined after a detailed literature review. For mid-term campaign, 30 new detached houses were measured once per year over 3-year period. It observed air permeability increases slightly during first (a mean increase 18%), then stabilizes second third years. Five them twice did not show any significant seasonal variation. long-term 31 built last 10 years remeasured once. Air shows similar campaign 3–10 20%). results an overall number leakages detected for all houses, is always correlated change permeability. Results pointed three could deterioration airtightness: levels, type roof material air-barrier.
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ژورنال
عنوان ژورنال: Energy and Buildings
سال: 2021
ISSN: ['0378-7788', '1872-6178']
DOI: https://doi.org/10.1016/j.enbuild.2021.111257