This course will present the composition and assembly of the building envelope and its effect on energy performance. The building envelope includes windows, doors, structural requirements, infiltration, and maintenance requirements. There will be an emphasis on how the building envelope can also be used as an opportunity to enhance building performance while maintaining a desired modern appearance. Students will also learn the code requirements including compliance with fire ratings, noise and vibration, sound transmission rating, limiting moisture transfer and structural stability. Industry-used practices and details will be presented and discussed including thermal bridging, cavity drainage, expansion joints, joints, restoration and other common methods that have been used and improved.