RESNET uses the Home Energy Rating System (HERS) to rate a home's energy efficiency. The HERS Index illustrates a range of numbers, or scores, that can be used to compare the energy use of two homes.
The HERS Score is a number that represents the relative energy use of a rated home as compared with the energy use of a home built to today's minimum building code. The HERS system allows for an apples-to-apples energy efficiency comparison of different houses.
A HERS Rater provides recommendations for cost-effective improvements that can reduce energy use in a home (and therefore lower the HERS score).
Computer software, such as REM/Rate, is used to analyze the results of an in-depth assessment of an existing home or the components of a new home design. The assessment includes analysis and inspection of:
Specialized diagnostic equipment, such as a blower door and duct blaster, help to provide detailed measurements of the energy efficiency issues. In addition to yielding an energy rating, the report will provide a cost benefit/analysis, with expected return on investment for suggested repairs and upgrades. This makes it easier for the homeowner to prioritize recommended treatments.
RESNET has grown in popularity as a result of its far-reaching impacts. Here are several examples of groups that use the HERS score:
The HERS Index is also one of the metrics used to qualify a home for an EPA ENERGY STAR certification label.
Continue Reading - Page 3 of 5: RESNET HERS Rater Certification Process
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