Anyone keeping up with ASHRAE standards knows about Standard 90.1, “Energy Standard for Buildings Except Low-Rise Residential Buildings.” But less well known is its sister, Standard 90.2, “Energy Efficient Design of New Low-Rise Residential Buildings.”
The purpose of both is to provide minimum requirements for the energy-efficient design of buildings. Obviously 90.1 concerns commercial and industrial applications, while 90.2 focuses on new residential dwelling units for human occupancy.