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You are here: Home / News / Residential Buildings Energy Code Summary

May 13, 2014 by admin

Download the complete Iowa Residential Energy Code Summary – PDF

Iowa homebuyers appreciate the comfort and warmth of well-designed, energy-efficient houses.

With the upgrade of Iowa’s statewide energy code, home buyers now have peace of mind knowing that Iowa homes meet the latest standards for energy efficiency. All new houses in Iowa must meet the minimum requirements of the 2012 International Energy Conservation Code (2012 IECC). This publication is a summary overview of the 2012 IECC for residential construction with Iowa specific amendments. This statewide energy code becomes effective on April 1, 2014 with a grace period until June 1, 2014.

Significant changes with the new Iowa energy code explained in more detail in this brochure:

  • New houses are required to be sealed and tested by a third party to 4ACH50.
  • Basement walls require insulation (finishing not required).
  • 75% of the permanent light fixtures must have high efficiency bulbs such as CFLS.
  • Heating system ductwork located outside of the conditioned (heated) part of a house must be tested for tightness. Return ducts in building cavities must be tested as well.
  • Air barrier material(s) such as spray in-place foam, sealed in-place sheathing, sealed in-place foam board or sealed poly are required in rim band joists, behind tub/shower enclosures on exterior walls and dropped ceilings adjacent to the thermal envelope.
  • Programmable/setback thermostats are required in homes with furnaces.

 

The statewide energy code also gives house buyers an additional tool to use in making their purchase decision–the “Energy Efficiency Components Label.” This label is required in all new houses and is a way for the builder to certify that the house at least meets the minimum code levels for insulation, window, and heating system efficiencies and other energy features required in a new house.  The label also ensures that the information about these features is not lost over time. The label will be permanently affixed to the house’s electrical breaker box, so subsequent owners will have the same information available to them.

Since the Energy Code is a state wide code, cities, towns, and counties with building code jurisdictions are required to enforce the state energy code in their jurisdictions.

For more information contact:

Dave Ruffcorn • Phone (515) 725-6139 • E-mail: Ruffcorn@dps.state.ia.us

http://www.dps.state.ia.us/fm/building/energy/index.shtml

 

 

This booklet is an energy code summary.

A copy of the 2012 IECC can be ordered from the

International Code Council at www.iccsafe.org or call 800-786-4452

 

Filed Under: News

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