Our article titled, “Advanced calibration of historic apparent moisture diffusivity models for mortar” led by CMCL former student, Dr. Milena Rangelov was recently accepted for publication in ACI’s Materials J. Keep a watch out for this publication in the upcoming issue of the ACI journal. This paper provides insight into apparent diffusivity models commonly used by researchers and used in building codes by simplifying their so many parameters and providing guidance to choose suitable values.