Developed to minimize multiple interpretations of Standard 90.1 that are likely to occur, this user's manual helps users of Standard 90.1-2010 understand its principles and requirements and how to comply with them. This manual is written in clear, direct language, making it understandable to professionals and laymen alike. It also includes measurements and calculations in both I-P and SI units, making it usable with either edition of Standard 90.1. With sample calculations, application examples, forms to demonstrate compliance, and references to helpful resources and Web sites, this manual is intended for architects, engineers, contractors, code officials, and other building professionals, and is also suitable for use in educational programs.