Green Retrofit for Your Home
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Green Retrofit for Your Home

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Green Retrofit for Your Home Green Retrofit for Your Home Presentation Transcript

  • Green Retrofit for Your Home • Green Roundtable • September 12, 2009 • Mark Price • Steven Winter Associates, Inc. Steven Winter Associates, Inc.
  • LEED AP + Homes Single Family – Custom Gut Rehab / Deep Energy Retrofit Multi-Family Public / BHA Consulting / Zero-Energy Steven Winter Associates, Inc.
  • I assume: • You Have a home • You can (are authorized to) make changes to your home • You want to conserve: – Resources – Money – Energy – Carbon – Your home Steven Winter Associates, Inc.
  • What is Green? • “The practice of increasing the efficiency with which buildings and their sites use and harvest energy, water, and materials, and reducing building impacts on human health and the environment, through better siting, design, construction, operation, maintenance, and removal.” - Wikipedia Steven Winter Associates, Inc.
  • What is Green? • Efficient – Use of materials – Use of energy/water – The greenest building is the one you don’t have to build • Thinking of impacts beyond cost • Healthy/Safe • Good Building – Best practices – Smart Steven Winter Associates, Inc.
  • Climate Change • Source: US EPA • www.epa.gov/climatechange/science Steven Winter Associates, Inc.
  • Top 7 Environmental Impacts: • 1. Cars and light trucks • 2. Meat and poultry production • 3. Fruit, vegetable and grain production • 4. Home heating, hot water and air conditioning • 5. Household appliance and lighting use • 6. Home construction • 7. Household water and sewage • From The Consumer’s Guide to Effective Environmental Choices, Brower and Leon, Three Rivers Press 1999 Steven Winter Associates, Inc.
  • Minimize demand for water / chemicals No invasive species Low water Landscaping Steven Winter Associates, Inc.
  • Reduce local heat island effects Reducing/Shading of Hardscapes Steven Winter Associates, Inc.
  • Use rainwater or reuse greywater. Water Re-use Steven Winter Associates, Inc.
  • Minimize water demand for landscape irrigation. High-efficiency Irrigation System when used Steven Winter Associates, Inc.
  • Minimize water demand for indoor use. •Toilets: 1.3 GPF Showerheads: 1.75 GPM Faucet aerators: 1.0-.5 GPM Efficient Indoor Water Use Steven Winter Associates, Inc.
  • Increase the service life of the building – durability planning Steven Winter Associates, Inc.
  • Rain screen wall assembly Steven Winter Associates, Inc.
  • Air/thermal barrier continuity Thermal bypass checklist – Build tight, ventilate right Steven Winter Associates, Inc.
  • Minimize air leakage into and out of conditioned space. Blower Door Test • Depressurizes the house • Measures how well the house contains pressure • Find the leaks Steven Winter Associates, Inc.
  • Use high performance windows For comfort, durability, and energy savings Steven Winter Associates, Inc.
  • Minimize leaks in heating and cooling distribution systems. Steven Winter Associates, Inc.
  • Use high performance HVAC equipment Steven Winter Associates, Inc.
  • Size HVAC equipment properly Sized with Manual J – Required by code, but rarely done. Steven Winter Associates, Inc.
  • Charge refrigerant properly Refrigerant charge/ air flow verified Steven Winter Associates, Inc.
  • Efficient water distribution system & Equipment. Steven Winter Associates, Inc.
  • Minimize lighting & appliance energy demand. ENERGY STAR labeled fixtures & appliances Steven Winter Associates, Inc.
  • Use renewable electric generation system. Renewable energy Steven Winter Associates, Inc.
  • Use framing materials efficiently. 2 strips of plywood 4 feet wide and 1 strip 2 feet wide 2’-10” 9’-7” 16’-2” * 19’-2” * Plywood soffit 4’ grid 4’ 16” ch -in ’ 2” vent 4 24 strip 4’ 4’ 16” 16” 16” 4’ 8’ Cut plywood 4’ sheet into equal 4’ strips for soffit assembly. Paint/ seal upper and lower surfaces of soffit as well as edges. * The 2" dimension comes from assuming that 1" thick insulation sheathing is installed over framing. Efficient framing techniques Steven Winter Associates, Inc.
  • Use environmentally preferable products • Luan plywood is considered tropical! – Cabinets, hollow-core doors, floor underlayment, pull down stairs Tropical Hardwood FSC-Certified Steven Winter Associates, Inc.
  • Minimize leakage of combustion gases Combustion Venting Steven Winter Associates, Inc.
  • Outdoor air ventilation Meets ASHRAE 62.2 Steven Winter Associates, Inc.
  • Ensure supply air is distributed to conditioned spaces. Supply Air Distribution (Manual D) Steven Winter Associates, Inc.
  • Reduce exposure to airborne particulates that affect respiration Supply Air Filtration Steven Winter Associates, Inc.
  • Protect occupants from exposure to contaminants. Contaminant Control Steven Winter Associates, Inc.
  • EPA Radon Zones in southern New England RED = Zone 1 Orange = Zone 2 Yellow = Zone 3 Steven Winter Associates, Inc.
  • USGBC Green Home Guide: REGREEN • Based on the LEED • for Homes Standard • http:// • www.greenhomeguide.org/ Steven Winter Associates, Inc.
  • Thanks! • Mark Price • Steven Winter Associates, Inc. • mprice@swinter.com • www.swinter.com Steven Winter Associates, Inc.