IECC/IRC/IBC Code Inspections
The 2009 IECC: Increased Inspections
Duct systems must be designed, sized, and installed using recognized industry standards and International Residential Code® (IRC) requirements, so that calculated heating and/or cooling loads are delivered to each zone.
Effective January 1, 2012, all Texas Municipalities must enforce the 2009 International Residential Code (IRC) for single-family residential construction. Changes in the Residential Energy Efficiency Code (chapter 11) include Energy Testing Requirements, which could have a tremendous impact on your code compliance daily operations, which include:
- Mandatory pressure testing of ducts
- Mandatory pressure testing of envelope leakage or visual inspection based on a defined checklist
- Requirements of 50% or more of all lamps be high efficacy
The 2009 edition has a requirement that the air tightness be verified by testing, which must be done by a qualified technician. The test can be done either immediately after rough-in of the ducts or later, after the home is completed. Testing at rough-in makes it easier to correct leaks without tearing down building components or using potentially more costly in-duct sealing equipment. Testing at home completion, on the other hand, allows testing the amount of leakage to outdoors rather than simply the total leakage, the theory being that leaks to the indoors are not as bad as leaks to outdoors.