Preface

This is the third edition of AAMA/WDMA/CSA 101/I.S.2/A440, NAFS - North American Fenestration Standard/Specification for windows, doors, and skylights. It supersedes the previous editions, published in 2008 under the same title and published in 2005 under the title Standard/Specification for windows, doors, and unit skylights. It is jointly published by the American Architectural Manufacturers Association (AAMA), the Window & Door Manufacturers Association (WDMA), and the Canadian Standards Association (CSA).