Introduce building enclosures and principles involved in design of enclosures for a Canadian climate. Students will explore concepts of hygrothermal analysis, energy performance of enclosures, thermal bridging, and controls for airflow, water ingress, vapour diffusion, and thermal performance. Enclosure design principles for different structure materials (concrete, wood, steel) will be introduced. Laboratory components include experimental assessment of air and water controls, assessment of thermal properties of built structures, and modeling of moisture and heat flow through assemblies.