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ASHRAE publishes 2016 Residential IAQ Standard

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On 1 April 2016, ASHRAE announced the release of ANSI/ASHRAE Standard 62.2-2016, Ventilation and Acceptable Indoor Air Quality in Residential Buildings, which defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in residential buildings. Multifamily units in all types of buildings are now covered in the scope of ASHRAE’s residential indoor air quality standard, marking one of the biggest changes to the recently published 2016 version.


Prior to this edition of Standard 62, multifamily residential buildings four stories or above fell under the scope of ANSI/ASHRAE Standard 62.1, Ventilation for Acceptable Indoor Air Quality. Now the dwelling units themselves are covered by 62.2 regardless of building height, while common areas of those buildings remain in the scope of 62.1.


Another major change in the standard provides a means of determining equivalency for a variety of ventilation scheduling strategies. This change also includes a maximum short-term exposure to make sure that meeting annual equivalence does not unduly compromise short-term IAQ.



For further information, please visit the relevant ASHRAE webpage.