Frequently Asked Questions

What is the difference between a HERS rating and an Energy audit?

There are two levels of analysis that can be done on a residential home, a HERS rating or an Energy audit. Both subject the home to thorough onsite diagnostic measurement.  However, a HERS rating is 3^rd party verified by an independent auditor while an Energy audit is not. This additional verification is required by the Energystar program, for the sustainable tax credit and to prove one has met building codes. A HERS rating is also used to obtain an Energy Efficient Mortgage. An Energy audit offers the same testing and gives the same results without the additional verification. Energy audits make sense for the homeowner who wants to pinpoint energy loses before installing a solar system or to figure out the best way to reduce overall energy expenditures.

What happens during a home analysis?

A home analysis generally consists of three visits to the home. On the first visit we meet with the homeowner to determine exactly what they hope to achieve with the information they attain from the audit. At that time we take initial measurements of the home. On the second visit we will do a blower door test and take whatever additional measurements are needed. A visual inspection of the insulation is required, so we will drill a small hole in the wall at a discreet location to check insulation condition.  The final visit is a consultation where the findings of the audit are discussed. The client is presented with a portfolio which contains a complete breakdown of the homes components along with all of the test results. Suggestions for improvement and payback periods are discussed. (If there are time constraints, the first two visits may be condensed into one visit and the results can be mailed). For new home construction, the initial meeting happens during the design stage, the second visit is to check the insulation installation, and a blowerdoor test is given on the final visit. Builders will receive a portfolio of the home along with official certificates and tax forms.

Why are energy improvements cost effective?

Energy improvements help to reduce the long term operating costs of your home. Over the course of a typical 30 year mortgage, an energy savings of $125 per month could allow you to add an annual principal buydown payment that could reduce the term of your mortgage by several years and save you tens of thousands of dollars.