研究了一种隔热住宅木框架墙体结构的湿热性能。该研究包括三种类型的蒸汽缓速器系统的影响，以及跨壁的零、正和负总压差的影响。暴露是北方冬季气候的代表。本研究的主要目的是研究在不同的蒸汽缓凝剂（屏障）和总压差条件下，水蒸气的迁移和积聚及其对典型隔热木框架住宅墙体结构热性能的影响。

The moisture/thermal performance of an insulated residential wood-frame wall structure was investigated. The study included the effects of three types of vapor retarder systems, and the effects of zero, positive and negative total pressure differences across the wall. Exposure was representative of a Northern winter climate.The primary objective of this investigation was to study the migration and accumulation of water vapor and its effect on the thermal performance of a typical insulated wood framed residential wall structure, under various conditions of vapor retarder (barrier) and total pressure differential.