Recent changes in North America energy codes for the building envelope include higher insulation R-values, continuous insulation, and continuous air barriers for air leakage control. New, code compliant wall assembly design options may be susceptible to increased moisture sensitivity due to lower drying rates, which are inherent to energy efficient assemblies but could be further impacted by design detailing and materials choices. Improved energy efficiency does not need to come at the expense of the long term performance and durability of buildings. This seminar will address design options and materials choices for energy efficient and durable wall design. Design tools for advanced moisture analysis (WUFI®, Wärme und Feuchte Instationär, or Transient Heat and Moisture Analysis) will be used to show how to predict performance of untested new assemblies, how materials substitution could impact the overall performance of the building envelope, and how design detailing could increase moisture management capabilities.

Presented by various experts on behalf of DuPont Performance Building Solutions.