Design
ENERGY STANDARDS There are three widely recognized energy stan dards for home building: passive house, LEED (Leadership in Energy and Environmental Design) and HERSÒ (Home Energy Rating System). Passive house, a system originating in Germany, has the most rigorous standards. Although the standards are open source, the “Certified Passive House” des ignation requires extensive documentation by an accredited passive house expert. The time and cost to achieve the certification are not worth it to most homeowners. LEED, developed by the U.S. Green Building Council, is the most widely used energy rating system in the world. It is primarily used for large commercial, institutional, and multi-family residential buildings.
The HERS Index is a nationally recognized system for inspecting and calculating a home’s energy performance which has been adopted by the US Department of Energy. To qualify a certified HERS rater inspects the home (including a blower door test) and rates the house on a sliding scale which gives the homeowner an indication of how energy efficient their home is in comparison to other homes. A typical home built to 2006 energy efficiency standards scores 100 in the HERS Index. A home with a HERS Index score of 70 is 30% more energy efficient than a standard new home; a score of 130 is 30% less efficient than a standard new home. A HERS Index score can be used by homeowners to apply for state and federal tax credits, and they are also beginning to be used by real estate agents to compare properties. The cost of a certified HERS rating is reasonable, and it can provide tangible benefits.
Spring 2025
Landscape Design, Construction, Horticultural Services and Consulting
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COUNTRY CABINETS, ETC.
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