Recognizing that the ventilation rate procedure in its indoor air quality standard may be difficult to apply in existing buildings, ASHRAE says it is proposing an alternate compliance path.
Proposed addendum b is one of six addenda to ANSI/ASHRAE Standard 62.1-2013, Ventilation for Acceptable Indoor Air Quality. Public comment is open until Oct. 5, 2014. To comment or learn more, visit www.ashrae.org/publicreviews.