2004 International Residential Code (IRC) International Residential Code International Residential Code 2004 International Residential Code (IRC) International Residential Code International Residential Code (IRC) 2004 International Residential Code (IRC) 2004 International Residential Code (IRC) 2004 International Residential Code (IRC) 2004 International Residential Code (IRC). 2004 International Residential Code (IRC) International Residential Code 2004 International Residential Code (IRC) International Residential Code (IRC)