对能源审计员来说，住宅建筑中的重大能源损失可能是非常难以捉摸的。因此，传统的改造选择很容易忽视主要问题领域。本文概述了一些测定建筑能耗的实验方法，重点是空气渗透。房屋减压和红外扫描的结合使用，可以确定热空气离开建筑物的“旁路”路线的位置。这些损失往往会破坏隔热的有效性，并降低住宅的舒适度。描述了几种类型的旁路，并记录了它们广泛存在的证据。还讨论了改造这些和其他能量损失场所对居住者和建筑结构的副作用的影响。引文:密歇根州底特律ASHRAE学报第85卷第2部分研讨会

Major energy losses in residential buildings can prove very elusive to the energy auditor. As a result, conventional choices of retrofit can easily overlook major problem areas. This paper outlines a number of experimental approaches for determining the energy consumption of a building, with emphasis on air infiltration. The combined use of depressurization of the house and infrared scan permits the location of "bypass" routes through which warm air is leaving the structure. These losses tend to undermine the effectiveness of insulation, as well as to lower comfort in the dwelling. Several types of bypasses are described and evidence for their widespread existence is documented. The impact of retrofitting these and other energy loss sites is also discussed with regard to side effects on the occupants and building structure.