scope:

FOREWORD

Addendum a updates normative references to reflect most recent year of publications and contact address, as applicable. One new normative reference (ASTM E3158) is added as an alternative test method for whole-building air leakage compliance to give users more options, especially when their building is exceptionally large or has multiple zones. Two NFRC publications are also added to Section 10 because both standards are cited normatively; conversely, a publication previously listed in Section 10 is deleted because it does not cited normatively. Finally, two references to sections of Standard 90.1 have been updated to reflect numbering in the latest published edition of the standard.

Note: In this addendum, changes to the current standard are indicated in the text by underlining (for additions) and (for deletions) unless the instructions specifically mention some other means of indicating the changes.