Moisture Management for High R-Value Walls

Lepage, R.¹  Schumacher, C.¹  Lukachko, A.¹ 

[1] Building Science Corporation, Somerville, MA (United States)

关键词: high-R walls;    building enclosure;    residential;    residential buildings;    Building America;    BSC;    High-R;    high R-value;    Moisture;    Moisture management;    hygrothermal;   

DOI  :  10.2172/1220904
RP-ID  :  DOE/GO--102013-4266
PID  :  OSTI ID: 1220904
Others  :  Other: 6608

美国|英语

来源: SciTech Connect

【 摘 要 】

This report explains the moisture-related concerns for high R-value wall assemblies and discusses past Building America research work that informs this study. In this project, hygrothermal simulations were prepared for several common approaches to High R-value wall construction in six cities (Houston, Atlanta, Seattle, St. Louis, Chicago, and International Falls) representing a range of climate zones. The modeling program assessed the moisture durability of the wall assemblies based on three primary sources of moisture: construction moisture, air leakage condensation, and bulk water leakage; the report presents results of the study.