André Desjarlais is the Program Manager for Residential Buildings Integration at Oak Ridge National Laboratory. He has been involved in building science for 50 years, first as a consultant and, for the last 32 years, at ORNL. Expertise includes building envelope energy efficiency, moisture control, and durability. Andre has been a member of ASTM since 1987; he is the past chairperson of ASTM Committee C16 and was awarded the title of Fellow in 2011. He has been a member of ASHRAE since 1991 and is past chairperson of Technical Committee TC 4.4. André is also a founding director of the RCI Foundation.