Building Energy Efficient Homes: New Construction and Rehab .


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Building Vitality Proficient Homes: New Development and Recovery. HERS 86 (EnergyStar) least 30% Superior to the M.E.C. Different Contemplations: Moderate; Sturdy; Sound. William Zoeller, R.A. Significant Frameworks Influencing Building Vitality Execution. Building Envelope
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Building Energy Efficient Homes: New Construction and Rehab HERS 86 (EnergyStar) least 30% Better Than the M.E.C. Different Considerations: Affordable; Durable; Healthy William Zoeller, R.A.

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Major Systems Affecting Building Energy Performance Building Envelope Air-snugness, Insulation levels Water-administration Windows and Glazing Systems Glazing SHGC Overall "U" Value Heating, Ventilation, and Air Conditioning Equipment measuring, productivity and area Duct snugness, conveyance viability, and area

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Major Systems Affecting Building Energy Performance Domestic Hot Water Generation Distribution Stand-by-misfortunes Appliances Refrigerator, dishwasher, garments washer/dryer Lighting and different

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Panelized Advanced Framing Panelized Advanced Framing 2 x 6 Walls @24" OC Low-e Windows Foamed Stud Cavities with Blown in Cellulose (R-23) Inside-The Envelope AHU Foamed and Insulation Buried Ducts Affordable and Starter Homes HERS 89 Outlook Construction Atlanta, GA

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Panelized Advanced Framing Reduces Framing Cost and expands Level of protection Reduces nearby Labor and Construction Time Requires Additional Planning, But Improves Systems Integration

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Insulation-Buried Ducts Computer Modeling of Heat Flow From Insulation Buried Duct Section Through Foamed Over Insulation Buried Duct

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Buried Duct Benefits Improves air appropriation proficiency Provides extra air-fixing at joints and registers Reduces Peak stack permitting a littler framework to be utilized Cost of froth can be balanced by diminished cost of HVAC

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PANELIZED WALL AND ROOF SYSTEMS 25 Home In-fill Development Panelized SIP Construction R-24 Walls R-40 Roofs 92 AFUE Furnaces Mastic Sealed Ducts 1.2-kW PV Solar Systems Low-e Windows EnergyStar Appliances Compact Fluorescent Lighting Controlled Ventilation Claretian Associates South Chicago, Il

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First SIP Project in Chicago $155,000 cost for 1700 SF Home 5% Increase in Cost of Standard Construction half Increase in Energy Efficiency

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Cement Board Structural-Insulated-Panels Aluminum-Skinned SIP Roof Construction Structural-Steel Moment-Frame at Centerline Sold as Pre-Engineered Kit to Builder Standard and Custom Designs Available Low-Cost and Durable Panelized Wall and Roof Systems Homefront Homes

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Cement Board SIP Panels Panelized Wall Construction System: Hardie ® 5/16 " thick concrete load up overlaid to both sides of 4" thick polystyrene froth Cuts development time by up to 75% High least R values with R-20 dividers and R-30 rooftop No wood utilized as a part of the home development to maintain a strategic distance from dampness and termite harm 3 days to finish the building shell

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Home Front Before Hurricane After Hurricane Home Front homes demonstrated incredibly flexible when Hurricane Charley struck in August, 2004 One mile away… .

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Unvented Crawlspace Improved Energy Efficiency Improved Indoor-Air-Quality

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Low-e Glass Windows Low-e glass shut out most long-wave radiation (warm) while permitting a large portion of the short-wave radiation (light) to enter.

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Typical Costs Extra cost for 300 SF low-e covering on twofold coating: $300. Investment funds in scaling back AC by ½ ton: $275. Net cost: $25.

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Additional Benefits of Low-e Windows Reduced cooling load needs littler HVAC framework Smaller HVAC framework implies bring down wind currents, and more straightforward weight adjusting By being all the more firmly coordinated to both pinnacle and non-crest cooling loads better dehumidification is accomplished (Improves IAQ and represses form development)

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HVAC Optimization "Right-Sized" HVAC Manual J with no curiously large Compact plan keeps away from conduits in outside dividers Less open door for releases and misfortunes Less expensive to introduce Better ready to accomplish wind currents

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OPTIMIZED HVAC Mercedes Homes Townhouses Melbourne, Florida Concrete and Panelized Construction Low-e windows Integrated HVAC AHU in Conditioned-space EnergyStar Qualified

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Down-Sized HVAC Single Zone 1.5 Ton Capacity Heatpumps Compact Distribution First and Second Floor Returns Fresh-Air Duct

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OPTIMIZED HVAC COMFORT TESTING

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ECO-Block Walls Fly-Ash Concrete Low-e Windows Integrated Compact HVAC SEER 17 A/C Tankless Water-Heater and Hydro-curl AHU HERS 95 Tankless Gas Water-Heater Madera I Model Home, Gainesville, Florida Takagi T-KD20

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Cost and Benefits Saves Space: Much littler than a capacity tank Saves Energy: Stand-by misfortunes are wiped out. Working proficiency enhances by 30% to 40% Saves Energy: For space warming, .84 AFUE is higher than standard heater at .80 AFUE Incremental cost increment is about $600. Short introductory pay-back, and quick positive income.

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Heat Pump Water Heater Installed in a home in Melbourne, Florida WatterSaver Integrated HPWH by ECR International, Inc. (item presented Fall 2002) Monitoring started in April 2002 3-man family unit (2 grown-ups & baby)

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Preliminary Findings Reliable Performance Homeowners extremely satisfied 62% kWh investment funds $10/month reserve funds at nearby electric rates of $.077/kWh

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Energy-Efficient Lighting, Appliances, and Controls Takoma Village, Washington, DC

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Takoma Village Washington, D.C . Other Sustainable Features Energy Efficient Lighting Low-VOC Paints and Finishes Fiber-Cement Siding Recycled-Content Carpets Horizontal-Axis Clothes Washer Tubular Skylights

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Putting It All Together Warwick Grove, Warwick, NY

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Putting It All Together Advanced Framing Unvented Crawlspace Low-E Windows Optimized HVAC 92% Condensing Furnace 13 SEER Air-Conditioning Tankless Gas Water-Heater EnergyStar Appliances HERS 89 - 90!

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