Energy Star Homes

es_logo.gifHomes that earn the ENERGY STAR must meet guidelines for energy efficiency set by the U.S. Environmental Protection Agency. ENERGY STAR qualified homes are at least 15 percent more energy efficient than homes built to the 2004 International Residential Code (IRC).

This has become a large issue for homeowners in Boulder and beyond. Many of us are well aware by now that this Energy Star rating applies to various home appliances but I think fewer people are clear that an entire home can have an Energy Star rating.
What is IRC?

The International Residential Code (IRC) is a comprehensive, stand-alone residential code that creates minimum regulations for one- and two-family dwellings of three stories or less. It brings together all building, plumbing, mechanical, fuel gas, energy and electrical provisions for one- and two-family residences. The IRC also provides a prescriptive approach (i.e., a set of measures) and a performance approach (i.e., energy modeling) for determining compliance.

If you’re interested in Colorado State building energy codes, the Building Codes Assistance Project website might be something you want to check out.

The ENERGY STAR Qualified New Homes Market Indices for States compares the number of ENERGY STAR qualified new homes built to the number of privately owned housing units permitted in each state and the District of Columbia. Each state’s index is a measurement of ENERGY STAR’s presence in the site-built, single-family new homes market for that state. It does not measure other energy efficiency efforts within the state. The map below illustrates the ENERGY STAR Qualified New Homes Market Indices for States for 2006. ENERGY STAR, in partnership with stakeholders, achieved an average national market presence in the new homes sector of 12% in 2006. States with a market index equal to or greater than the national average are listed in the table below. The Energy Star Website has a nifty map which breaks down by state the level of participation. Where does your state rank?

How about your home? Want to find out how your home’s energy rating stacks up against the others? Check out the RESNET website to find an energy rater in your area.


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