Implications of Modifications to the International Energy Conservation Code (IECC) and ASHRAE Standard 90.1 in the Upper Midwestern United States

Abstract

Modifications to the standards stated by International Energy Conservation Code (IECC) and ASHRAE Standard 90.1 are ongoing in response to growing performance expectations beyond the construction industry. As these standards are increasingly stringent, clients are often concerned primarily with cost constraints over energy performance. Can the mere substitution of one rigid insulation type for another pay for itself? Research compiled within this study sought to clearly and conveniently compile basic performance and necessary standards as they pertain to building envelope design, as well as a brief comparison of potential insulation types for professional reference in a manner that is easily accessible.