ASHRAE Standard 90.1

Energy performance has become a mainstream design consideration, often being the primary driver for decisions regarding the building enclosure and most other systems of the building. Most jurisdictions establish minimum requirements for energy performance through reference to ASHRAE Standard 90.1, or similar standard. In this bulletin, we will examine the requirements of ASHRAE 90.1, how it impacts the building enclosure, as well as tips for effectively using this standard.