In a 2014 official interpretation ASHRAE ruled that Standard 55 is applicable to houses. It has been referenced in ASHRAE 62.2 for many years and is also listed as a residential resource at the ASHRAE website. Thermal comfort is becoming a front and center issue in residential buildings. Leading the way in research and Standard develop is ASHRAE SSPC 55 and cognizant committee T.C. 2.1. This seminar gives those who are interested in using Standard 55 a background in its development, current available modelling tools and how to use it for housing projects.