ICC Adopts 62.1 Ventilation Rate Procedure
The International Code Council has approved an ASHRAE proposal to incorporate the prescriptive ventilation rate procedure from ANSI/ASHRAE Standard 62.1-2004, Ventilation for Acceptable Indoor Air Quality, in the IMC.
The International Code Council has approved an ASHRAE proposal to incorporate the prescriptive ventilation rate procedure from ANSI/ASHRAE Standard 62.1-2004, Ventilation for Acceptable Indoor Air Quality, in the IMC.
Approval of ASHRAE's Standard 62.1 ventilation rate calculation procedure for the International Mechanical Code (IMC) marks a milestone for the high-profile mandatory-language standard after years of development aimed at code adoption. The code establishes minimum regulations adopted and implemented by federal, state and local government agencies for mechanical systems in new buildings.
The current ventilation criteria in the IMC are based on ASHRAE Standard 62-1989. Based on 20 years of IAQ research and experience with ventilation system design, ASHRAE introduced an improved version of the standard in 2004 to include the new rates and calculation procedures. This code change makes both the IMC and the 2006 Uniform Mechanical Code consistent with the ASHRAE standard.
The new requirements will be included in the 2007 IMC Supplement.
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