Christine Williamson—perhaps better known as the BS expert behind the Instagram account Building Science Fight Club—joins us to discuss the importance of vapor control. There is a lot of confusion around vapor management in building assemblies, stemming, in part, from the way people think about vapor barriers as a membrane to be bought rather than the vapor permeance of any given material. There are also constant questions concerning exterior insulation ratios. Christine will help us get clear on the answers.

As founder of Building Science Fight Club, Christine Williamson provides technical consulting services for architects, developers, and contractors; she assists with design development and reviewing details and specifications to improve durability, comfort, and energy efficiency. She also teaches architects, architects in training, and other building industry professionals about building science and construction. For her full bio, click here.