Performance based design (PBD) is becoming increasingly popular for designing structures that would not be possible using prescriptive- based codes. To effectively use PBD, engineers need to have access to engineering tools that can predict how a structure would be affected in fire scenarios. Building on previous work, 27 full scale fire tests were performed in attempt to determine a method to account for the effect of a single sprinkler on fire induced doorway flows. A new engineering tool was developed based on integrating the superposition of mass flux profiles in the doorway for both fire-only and sprinkler-only conditions. The results of this study are a first step to being able to predict the effect of a sprinkler on fire induced doorway flows from a compartment
