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Relationships between air-tightness and its influencing factors of post-2006 new-build dwellings in the UK

机译：英国2006年以后新建住宅的气密性及其影响因素之间的关系

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Addressing air leakage of dwellings is important to improving energy efficiency and thermal comfort. This paper reports on the air permeability test results of 287 post-2006 new-build dwellings in the UK. The paper explores the relationships between air-tightness and its influencing factors including build method, dwelling type, management context, design target, season, number of significant penetrations, and envelope and floor area. One-way ANOVA analysis was utilised to compare means of air permeability in relation to the individual factors, and two- and three-way ANOVA analyses were applied for examining the interactions between them. The air-tightness of the dwellings averaged 5.97 m~3/(hm~2) at 50 Pa, which has improved from UK historic data. Dwellings built using precast concrete panels were significantly air-tighter than those built using timber frame, whilst those masonry and reinforced concrete frame dwellings were most leaky. Greater extent of innovative practice and 'self-build' procurement led to achieving superior air-tightness. Interaction was observed between 'build method' and 'dwelling type' and between 'dwelling type' and 'management context'. A modest positive correlation was noticed between air permeability and design target, which became weak in relation to the number of significant penetrations and envelope area. Applying the linear regression technique a predictive model is developed for estimating air permeability of dwellings. This model integrates the influencing factors and their significant interactions. The findings should contribute to future research in predicting impacts of controlling the influencing factors on achieving air-tightness of dwellings more consistently.
机译：解决住宅的漏气问题对于提高能源效率和热舒适性很重要。本文报告了英国287处2006年后新建住宅的透气性测试结果。本文探讨了气密性及其影响因素之间的关系，包括建造方法，住宅类型，管理环境，设计目标，季节，重要穿透次数以及围护结构和占地面积。单向方差分析用于比较透气性与各个因素之间的关系，而双向和三向方差分析用于检查它们之间的相互作用。住宅的气密性在50 Pa时平均为5.97 m〜3 /（hm〜2），与英国的历史数据相比有所改善。使用预制混凝土板建造的房屋比使用木构架建造的房屋显着气密，而那些砖石和钢筋混凝土构筑的房屋则漏水最多。更大范围的创新实践和“自建”采购带来了卓越的气密性。观察到“构建方法”和“住宅类型”之间以及“住宅类型”和“管理环境”之间的相互作用。空气渗透率与设计目标之间存在适度的正相关关系，相对于重要的穿透次数和包络面积，该关系变得微弱。应用线性回归技术，开发了一种预测模型，用于估算住宅的透气性。该模型整合了影响因素及其显着的相互作用。这些发现应有助于未来的研究，以预测控制影响因素对更一致地实现房屋气密性的影响。

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