Center for the Built Environment

The over‐arching objective of this project is to identify key issues associated with window signaling as anatural ventilation control strategy. These key issues may relate either to the design of the system (controlsequence, installation strategy) or to human and situational factors that influence occupant response. Thisproject takes a broad look at window signaling systems in existing buildings in the U.S. Through interviews,site visits and occupant survey, we investigated 16 projects across the country to better understand a) whysignaling controls were implemented in the project; b) how “open windows” mode was defined; and c) theextent to which the signals play a role in window use behaviors.