This week we go back into the archives for one of our favorite episodes. It does not feel like almost seven years since we had Dr. Lstiburek on and the information within is still as relevant today as it was then. The key to solving IAQ issues is understanding how building science is the foundation under all we do. The four P's are People, Pollutant, Pathway and Pressurization, building science is the key to understanding two of those four components. Joseph Lstiburek is a principal of Building Science Corporation. Dr. Lstiburek has been a licensed Professional Engineer in the Province of Ontario since 1982 and is an ASHRAE Fellow. He is also an Adjunct Professor of Building Science at the University of Toronto. He has over thirty years of experience in design, construction, investigation, and building science research. Through the Department of Energy's Building America program, Dr. Lstiburek has forged partnerships with designers, builders, developers, materials suppliers and equipment manufacturers to build higher performance buildings across the U.S. LEARN MORE this week on on IAQ Radio!