2009 International Residential and Mechanical Code

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Upcoming International Code Changes

For 2009, Both IRC and IMC will Include the Dryer-Ell Advantage

Underwriters Laboratories confirmed the Dryer-Ell's improved airflow efficiency in 2006. The International Code Council also allowed the Dryer-Ell to be measured using ASHRAE methodology in 2006 residential code which translates to a one-to-one ratio when comparing friction loss versus straight pipe. For 2009, ICC will be publishing tables that clearly show the fact the Dryer-Ell can be measured the same as straight pipe in both International Residential and International Mechanical Codes.

You may find the code as it will appear by clicking the 2009 publications below.

International Mechanical Code

International Residential Code

2009 IMC Dryer Duct Length of Run Requirements

International Mechanical Code shows the equivalent length of the Dryer-Ell to be the same as it's actual length. See Table 504.6.4.1

2009 IRC Dryer Duct Length of Run Requirements

International Residential Code shows the equivalent length of the Dryer-Ell to be the same as it's actual length. See Table M1502.4.4.1

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