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BPI Certified: The Building Performance Institute (BPI) is the nation's leading building science accreditation organization. The "house as a system" philosophy - which looks at a building's various components (building envelope, attic, basement, combustion equipment, ventilation sources) and the interrelationship between them to maximize a home's performance. This approach leads to greater energy efficiency, but perhaps more importantly to buildings that simply work better. A home that has been analyzed and upgraded from a whole-house standpoint is more durable, healthier, more comfortable, and more energy efficient. For more information about BPI's standards, take a look at their Technical Standards for Building Analysts (PDF).

Efficiency First is a national nonprofit trade association uniting the Home Performance workforce, manufacturers of building materials, and businesses and organizations in the everlasting battle against global warming and rising energy costs. Efficiency First also functions as a mechanism through which people can express concerns in public policy discussions both locally and nationally in order to increase awareness of the pros of efficiency retrofitting and to better enable the industry evolve to meet unforseen need for efficient and high-performance homes.

ENERGY STAR Partner: ENERGY STAR Partners continually calculate, record, and make improvements. When possible, they use ENERGY STAR appliances in building or replacing, a representation of their pledge to reduce electricity consumption and increasing energy efficiency. ENERGY STAR Partners commit to use ENERGY STAR principles in research and development, ensuring that they are compliant with the latest standards, as ENERGY STAR standards are always changing. An ENERGY STAR partnership ensures that Partners are at the top of the industry in terms of energy usage and conservation. 

RESNET Certified HERS Rater: RESNET (short for the Residential Energy Services Network), is the premier accreditation organization for home energy raters and home energy auditors in the country. With an emphasis on new construction, RESNET certified HERS Raters (HERS is short for Home Energy Rating System) to analyze each element of home that may contribute to energy waste or energy inefficiencies. During a HERS Rating, we analyze each of these components, as well as their relationship to one another, to assign the home a score from 1-100 on the HERS Index. (100 is bad, 0 is good.) HERS Ratings are a mandatory part of the certification process for many green building certifications including Energy Star and LEED.