Published on June 14, 2019 by Sara Chauvette
Those selecting details of building assemblies must consider many variables, not the least of which are reasonably expected weather and climate conditions. Expected temperatures, humidity normally experienced, average amounts of rain and snow, the prevailing directions from which these come and where drifts normally occur are all pieces of predictable weather conditions. Depending on available financing, unusual occurrences like tornadoes, hurricanes, 50-year and 100-year floods can also be planned for during the design process. The direction each wall will face and existing drainage patterns on the site, which hopefully direct water away from the building, will affect design choices for exterior wall detailing. Even where vapor barriers need to be specifically located within wall and roof systems will vary based on prevailing climate conditions.
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