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September 19, 2011
This paper examines methods of using hygrothermal models, primarily WUFI, to assess the impact of energy efficient enclosure upgrades on the durability of historical buildings. Means of producing and choosing input data for the hygrothermal simulation are discussed. Methods for using the hourly results from the simulations to generate a corrosion index and a freeze-thaw count are developed. An example wall is used to demonstrate the type of output that can be expected and how this can be used in making retrofit design decisions.
RR-1014: High-R Walls for the Pacific Northwest–A Hygrothermal Analysis of Various Exterior Wall Systems
BA-1202: Byggmeister Test Home—Cold Climate Multifamily Masonry Building Condition Assessment and Retrofit Analysis