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Green Building Certifications. by: Sean McCaffrey a member of EPICS-HFH Biotown. 4/13/09 EPICS/HFHI 2 nd Annual National Conference .
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Green Building Certifications by: Sean McCaffrey a member of EPICS-HFH Biotown 4/13/09 EPICS/HFHI 2nd Annual National Conference
There are nearly 50 regional and national green home labeling programs around the country. While each program approaches green building a little differently, each incorporates important elements such as: • Energy-efficient construction techniques and products. • Improved indoor environments through environmentally-preferable materials and building practices. • Water-efficient products and processes. • Renewable energy options, when feasible. • Waste reduction and recycling during the construction process. • Smart growth and sustainable land development practices.
Energy Star http://www.energystar.gov/
Energy Star Overview Typical features to look for in ENERGY STAR qualified homes include: • An Efficient Home Envelope, with effective levels of wall, floor, and attic insulation properly installed, comprehensive air barrier details, and high-performance windows; • Efficient Air Distribution, where ducts are installed with minimum air leakage and effectively insulated; • Efficient Equipment for heating, cooling, and water heating; • Efficient Lighting and Appliances, including ENERGY STAR qualified dishwashers, refrigerators, and clothes washers.
Homeowner Benefits • Added confidence • Easy to identify homes that are truly energy efficient • Lower ownership cost • Less energy for heating, cooling, and water heating • Better performance • Consistent temperature, improved indoor air quality • Smarter investment • Energy efficiency, an increasingly valued feature • Environmental protection • Use less energy, reduce greenhouse gas emissions
The HERS Index The Home Energy Rating System was developed by The Residential Energy Services Network's (RESNET®) Based on the 2006 International Energy Conservation Code (IECC) and the 2004 International Residential Code (IRC) Each 1% increase in energy efficiency corresponds to a 1-point decrease in HERS Index
Energy Star Certification ENERGY STAR home plans will result in a home that is at least 15 percent more energy efficient than a home built to the There are two paths to qualify a home to meet ENERGY STAR’s guidelines for energy efficiency: • The National Performance Path - where software is used to model the home’s energy use to verify that it meets a target score. • The National Prescriptive Path - a Builder Option Package (BOP), where a builder constructs the home using a prescribed set of construction specifications that meet program requirements.
Energy Star Certification (Cont’d) • Both paths require the completion of a Thermal Bypass Checklist by a Home Energy Rater. • This is a comprehensive visual inspection of building details where thermal bypass, or the movement of heat around and through insulation, frequently occurs due to missing air barriers or gaps between the air barrier and insulation.
Associated Costs • The Energy Star Certification costs for homes built by Habitat for Humanity will be subsidized by the City of Lafayette.
LEED® for Homes 1,172 total LEED for Homes certified projects 107 were built by Habitat for Humanity 30 Platinum certification level
Point Breakdown • 1120 Sq Ft. [-10 Adjustment] • Certified 35-49; Silver 50-64; Gold 65-79; Platinum 80-136
Design Assumptions • No mechanical irrigation system • No greywater recovery system • Yes Heat Recovery Ventilator • No Advanced Framing Techniques • Yes Energy Star Certification + IAP!
How do we raise the points? • 24 more “maybe” points • 34 more possible EA points for lower HERS values.
Summary of LEED® for Homes • LEED for Homes is attainable and we should begin immediately to strive to achieve the highest certification possible for the home. • How we do this: • - Contact our closest LEED Rater • - Register our home • - Build to specifications
Associated Costs: • Technical Assistance and Verification Fees are based on market prices. • Affordability Grants up to $1000 for verification fees as well as refunds/subsidized registration and certification fees.
NAHB - National Green Building Standard http://www.nahbgreen.org/
National Green Building Standard • Released 2/4/09 • First ANSI ICC-700 2008 Approved Green Building Standard • 697 Total Points
Associated Costs • John Sears is becoming a Verifier • $200/500 for Non-NAHB Members