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Sustainable housing and building green rcbor presentation 5 10-11

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Sustainable housing and building green rcbor presentation 5 10-11

  1. 1. Sustaina able Housing and Buiilding Green What Agents Sh ld Know Wh t A t Should K
  2. 2. Seminar Outline r 1.Real Estate Licensees and Green Building s 2.Sustainable Building C Concepts 3.Energy Audits
  3. 3. 1. Real Estate Lice ensees and Green Build ding Learning Objectives A.Summarize the ways that real esta licensees assist consumers by ate resources and laying out options B. Differentiate between sustainable and green building C. Identify tipping points that have le to greater green awareness ed D. Recognize that the federal govern g g nment is not setting standards for g sustainable housing or building gree en E. Explain the value of life cycle ana alysis when choosing green materials t i l
  4. 4. Overview A. Impact of Buildings on the Environment n B. Real Estate Licensees Challenged to Better Assist Consumers
  5. 5. Meeting Consumer Co g oncerns A. Licensee Roles 1. Licensee as Gate Ke eeper 2. Licensee as Educato or 3. Licensee as Fiduciary
  6. 6. B. Dispelling Myths 1. Myth 1: Green B ildi i Complicated 1 M h#1 G Building is Co li d 2. Myth #2: Consumers are not c concerned with building green 3. Myth #3 : Green building is ex xpensive EPC s EPC’s – Energy Saving Performance Contracts Integrative Design
  7. 7. Key Findings America Institute of Architects an Nationwid Voter Survey 2009 de Thinking b Thi ki about energy in th United States -- h would you i h U i dS he how ld characterize the energy situa ation right now in this country? Would you say that: 2009 2007 We are doing well 4 5 We are doing okay 17 19 We are having some problem ms 29 34 We are on the verge of a cris sis 28 28 We are in an energy crisis 21 13 COMMENT: Voters see the ene ergy problem more negatively than they did two years ago, but not by large mar rgins. Doing “well” and “okay” combined has declined from 24% to 21% and “verge of a crisis” combined with “in an energy crisis” has increased from 41% to 49%. All responses of a negative nature total % 78% indicating that Americans believe that the energy situation is a problem of one degree or another.
  8. 8. Key Findings America Institute of Architects an Nationw wide Voter Survey 2009 Issue importance (10-point scale): 9s and 10s 2009 Mean 2009 2007 2004 Making U.S. less dependent on foreign oil t 8.60 65 61 51 Controlling medical insuran costs nce 8.33 64 67 Protecting against air and w water pollution 7.89 7 89 44 48 41 41* Increasing # of energy effici buildings ient 7.67 39 36 Holding down the price of g gasoline 7.55 47 51 Controlling electricity and u utility rates 7.51 41 46 47 Reducing greenhouse gas emmissions that may cause global warm ming 6.85 6 85 35 42 COMMENT: Energy dependen and increasing the number of energy efficient nce buildings are the only two issue that increased in importance among respondents es who gave them 9 or 10 ratings All the other issues declined somewhat in ratings. importance. Notably, reducing g greenhouse emissions declined 7 points.
  9. 9. Differences between Sustainable and Green Building e A. Sustainable Buildings 1. Derived from Agriculture Terms e 2. 2 Sustainable Communities Protect Diversity of Environment s 3. Zero Energy-Zero Waste Buildings e 4. Not just less damage but Restorative t B. Green Building 1. Categories Sit 1 5C t i Sites, W ter, E Wate Energy, Resources, IEQ R 2. Healthier for Living and W Working 3. Green Buyers are Happie er
  10. 10. Shift to Thinking Green Industry Tipping Points 1. Compact Fluorescent L Lamps(CFLs) 3 colors 2. Light-emitting Diode (LE bulbs ED) 3. 3 Buildings Produce as M Much Energy as They Consume B. Energy Costs 1. Increasing Electricity Coosts 2. Rising Costs of Utilities Negatively Impact Home Buying Power C. Influence of Global Warmingg 1. Warming Due to Air Pol llution and Greenhouse Gases 2. Green Components in CCommercial Building Filtering into Residential Market
  11. 11. Emerging Quantifiable Rating Systems g A. Voluntary Standards 1. Not Set by Government Aggencies - Yet 2. EnergyStar.Gov 2 E St G 3. Commercial Specifications Redrawn from Commercial to Residential s LEED NAHB -ICC 700 ICC ICC Green Building Codde Green Globes B. Life Cycle Analysis C. Regional Priority g y
  12. 12. New Responsibilities A. Building for Special Tax Considerations 1. Must Meet Certain Env vironmental Standards to Qualify 2. Possible Penalties if St d d N t M t 2 P ibl P lti tandards Not Met t 3. Importance of Specificity in Contract Language. Turn back money B. Changing Roles of Real Esta Licensees ate
  13. 13. 2. Sustainab Building ble g Conccepts Learning Obj ti L i Objectives Sustainable Building Concepts A. Name and Define Three Green Build ding Principles B. Describe Components of Green Building p g C. Identify the Advantages of Using Bro ownfields and Renovating Existing Buildings D. Compare Differences Between Fiber rglass Insulation, Cellulose Insulation, and Spray Foam E. List Ways to Effectively Tighten the B Building Envelope
  14. 14. Overview A. Consumers A U A C Are Unawar re B. Green Building Mantra: Reduce, Reuse, Recycle C. Common Misinterpretati ions and Misuse of Environmental Efforts
  15. 15. Sustainable Design and Buildin ng A. Building Green 1. 1 Energy Efficient 2. Minimize Environmental Imp pact B. Five Principles of Sustainability. p y 1. Optimize use of sun 2. Improve indoor air quality 3. Use the land responsibly 4. Create high-performance and moisture-resistant houses 5. Wisely use the Earth's natu resources ural
  16. 16. Whole Building Approac ch A. Must Consider Total Picture - Triple Bottom Line 1. Economic Costs 2. Energy Performance 3. Environmental Issuess USGBC NYSDEC
  17. 17. Low-Mid Rise Multifamily Detached Single Family Homes Mixed Use (min 50% Residential) Attached Single Family Homes
  18. 18. Project Manag gement 1. 1 Team Approach Critical to Finished Project On Time d a) No Statistical Difference Between C Cost of Building Green and Traditional Building g b) Owners Set the Stage c) "How Can We Do This?" 2. Integrated Design 2 I t t dD i a) An Element Has More than One Fuunction b) Color – Light – HVAC Equipment c) Flooding - Drought - Water Use 3. Licensee Role a) Be Aware of Marketability of Energ gy-Efficient Buildings b) Provide Information to Builders and Developers d
  19. 19. Use Land Responsibly 1 . Basic Site Considerations a) Minimize Building Footprint b) Avoid Building on Wetlands and Disturbing Wildlife Habitats c) Take Advantage of Tree Shadingg d) Reduce Impervious Area ) p 2. Reclaim Brownfields a) Property that Are, Were, or Are C Contaminated b) Can Assist in Reviving Depresse Areas ed
  20. 20. Build Close to T B ild Cl Transportation i n 1. Transit oriented development (TOD) a) Easily Use and Depend on Mass Transportation n b) High-Density, Mixed-Use C Communities 2. Encouraged by Rating Sys stems Energy Efficiency 1. Conserve Energy a) Reduce Demand b) R l on E Rely Energy N t C ted by Fossil F l Not Created b F il Fuels 2. Use Renewable Energy a) Avoid Fossil Fuels (Petrole eum Based) eum-Based) b) Power from Sun, Water, W Wind, Geothermal, Waves, Biofuels
  21. 21. Sustainable Sites Maintenance of a build ’ site i a M i t f b ild ding’s it is di fundamental component of comprehensive, sustainable building op peration.
  22. 22. Sustainable Sites The United States l ne loses 2 billi t Th U it d St t alon l billion tons of topsoil per year. This is of great ecological concern as one inch of topsoil can take 500 f y years to form naturallyy
  23. 23. Sustainable Sustainable Sites
  24. 24. Sustainable Sustainable Sites
  25. 25. Sustainable Sustainable Sites
  26. 26. Tight Envelope To Reduce Air Leakage 1. Windows a)Low Emissivity (Low-E) Glaze to Ref ) y( ) flect Radiant Indoor Heat b) U-value: Measure the Rate of Heat P Passing Through a Barrier, Lower Numbers More Efficient c) Solar Heat Gain Coefficient (SHGC): Measures How Well Window P Wi d Prevents Heat from Sun from E t i B ildi t H tf S f Entering Building, L Lower Numbers More Efficient 2. 2 Insulation Prevents Loss of Condition Air ned a) R-factor: Rates Ability of Insulation to Prevent Flow of Heat, o Higher Numbers Prevent More Heat Lo g oss b) Fiberglass insulation: Recycles Mate erials, Difficult to Ignite but Burns Fast, R-Values Deteriorate with T Temperature Differentials c) Cellulose insulation: Recycled News spapers, Burning Retarded, Fills Nooks and Crevices d) Spray Foam – Polyurethane, air and heat barrier d
  27. 27. G. G Tight Envelope To Reduce Air Leakage r 3. Structural Insulated Panels (SIPs) a) Two Layers of Structural B Board b) Insulating Foam in Betweeen c) Lightweight and Modular d) Easy to Use and to Move e) Less HVAC Required f) SIP Rooms Do Not Require Blower Door Test or Duct Blaster Test e g) Lower Costs Overall
  28. 28. Use Electricity Wisely A. Reduce Plug Load a) Many Appliances Continuually "On" Pulling Power b) Appliances More than 10 Y A li M th 0 Years Sh ld b R l Should be Replacedd c) Use Electronic Power Co ontroller for Appliances more than 10 years old d) Computers and printers a major energy users are www.energystar.gov/ B Choose Energy-Efficient App gy Appliances a) Tankless Water Heaters b) Programmable Thermost tats c) Ductless Air Conditioning g d) Geothermal Heat Pumps s
  29. 29. Computer Load Managem - Hundreds of leading ment organizations have activ vated power management features on computers sa aving as much as $50 per computer annually r http://www energystar gov/index cfm?c po w.energystar.gov/index.cfm?c=po w wer_mgt.prr_power_mgt_low_carbon_join
  30. 30. Use Electricity Wi l U El t i it Wisely C. C Renewal Power Sources 1. Solar Power a) Photovoltaic CPV) Cells Convert Sun's Energy into Electricity b) Manufacture and Dispoosal of PV Cells have Environmental Impact c) Cost Expected to Drop 2. 2 Wind Power a) Turbine Blades Conver Wind to Electricity rt b) Smaller Turbines for Re esidential Use c) Wind Farms Being Built Off-Shore
  31. 31. D. Conserve W t D C Water 1. Saving Potable Water a) Preparing for Drou ughts b) Effects of Paving a Buildings: Less Water Absorbed and c) All Certifications Place Premium on Conserving Water 2. Green Roofs a) U ) Usually N t A ll Not Accessible to Foot Traffic ibl t F t T ffi b) Reduce Heating and Cooling Load on Building c) Reduce Storm Water Runoff and Filter Pollutants d) Increase Habitat fo Displaced Wildlife or e) Can be Virtually Se elf-Sustaining, Requiring Minimal Care
  32. 32. Conserve Water Flooding and Droughts Mississippi •1968 National Flood Insur rance Program •100 yr flood protection •Corps of Engineers wanted a minimum 500-year C f i i i 00 standard for densely p p ated areas y popula •Developers wanted 50 yrs std. s
  33. 33. Conserve Water “The reality is that, over the 30- -year life of a typical home mortgage, there is a 26% chance of a flood that exceeds mortgage the 100-year standard. Over the course of a century, there is a 63% chance that a flood greater than the 100-year standard will strike, a 26% chance of two such floods, and an 8% chance of h three such floods. So it is hardly a statistical surprise that the y upper Midwest suffered 100 yea floods in 1993 and 2008. 100-yea ar 2008.” WSJ Article 4-30-2011
  34. 34. Conserve Water Japan and the Netherlan for example, protect nds, against river floods to a 2,000-year standard for densely populated areas and a 200-year standard for rural zones.
  35. 35. Water Efficiency y Americans extract 370 billion gallons per 00 year more than they re eturn to the natural water system to rechar aquifers and other t t t h rge if d th water sources.
  36. 36. Source USGS
  37. 37. Water Efficiency Efficiency
  38. 38. D. Conserve Water 3. Beneficial Landscaping a) Preserve Existing Ecos systems, such as Wildlife Habitat b) Reduce Need for Exce Water for Landscaping ess c) Reduce Possibility of G Groundwater and Soil Contamination 4. 4 Xeric plants Requirements a) Less Water b) Less Attention c) Fewer Chemicals d)Fewer Pesticides
  39. 39. D. Conserve Water 6. Microdrip Water Systems a) Use 20 to 50 Percent Less Water than Sprinkler Systems b) Littl e or No Water Lost to E Evaporation c) Water Delivered Directly to Plants d) Up front Costs More than T Traditional Sprinkler Systems e) Save on Water Usage 7. Water Collection Systems a) Most Used for Irrigation b) Thousands of Gallons of WWater Gained from Collection
  40. 40. Water Saving .5 g gpm aerators 1.0 or .5 gpm (.35 gpm) 5 <$5
  41. 41. Water Use Calculations s
  42. 42. Material Efficiency 1. Reduce a) Print Double Sided b) Coffee Mugs , Refilable Wat Bottles. ter c) Bldg Materials - Roof Insula ation 3. Reuse a) Use Same Product for Same Purpose or New Purpose e b) Examples: Refillable Glass B Bottles, Washable Cloth Diapers, Renovatable Buildingss c) Trade-offs d) Deconstruction e) Reconstruction 4. Recycle a) Break Down Materials b) Reassemble for New Purpos se c) Examples: Newspapers, Concrete, Glass, Aluminum
  43. 43. F. Manage Construction and Demo olition (C&C) Debris 1. Deconstruction a) Dismantle and Remove Before Building Torn Down ) e g b) Advantages: Lower Overall Bu uilding Removal; Reduce Impact to Site; Save Space in Landfills; Cre eates More Jobs c) Example: Big Dig House, Lexin ngton, MA d) Benefits C l l t D B fit Calculator: Deconstru ti I tit t t uction Institute 2. Factory-Built Construction Adva antages a) Better Use of Expensive Materrials b) Protect from Weather and Theeft c) More Exacting Construction St ) g tandards d) Higher Quality Control e) Less Waste
  44. 44. E. Indoor Air Quality I. Time Indoors Equals 90% a) Live in Conditioned Air ) b) Indoor Air up to 90% Less H Healthy than Outdoor Air c) Accounts for Many Missed Days of Work d) Many Pollutants Cause Prooblems 2. Minimize Mold a) Relative Humidity Less than 55% b) Repair Water Leaks Promp ptly 3. Minimize off- gassing off a) Release of Gases into Air o Chemicals Used in of Manufacture of Product b) Called Volatile Organic Com mpounds (VOCs) c) Formaldehyde Main Culprit t d) U P i t wi th L Use Paints i Low or No VOC No VOCs
  45. 45. E. Indoor Air Quality 4. Bring in Fresh Air a) Air Tight Buildings Contro Conditioned Air ol b) Use Air Exchangers 5. Indoor air Issues in Commerc Buildings cial a) Sick Building Syndrome ( ) g y (SBS): 20% of Occupants Complain, No ) p p Link Found b) Building related illness (B BRI): Specific Pollutant Identified as Causing Personal Injury
  46. 46. Indoor Environmental Quality Environmental
  47. 47. Energy and A Atmosphere Dr. Nocera said human activities, in energy n terms, terms right now are es ssentially a “12 8 12.8 trillion watt light bulb.” Our energy thirst will probably be 30 trillion w watts, watts or 30 terrawatts, by 2050 wit the human th population h di t ward 9 billi l ti heading tow d billion.
  48. 48. • - Cut down every plant on Earth and make it into a fuel. You get 7 terawatts, b you need 30. And you but don’t eat. • - B ild nuclear plants. A und 8 t Build l l t Arou d terawatts could b tt ld be gotten from nuclear power if you built a new billion-watt r plant every 1 6 days until 2 1.6 2050. 2050 • - Take all the wind energy available close to Earth’s surface and you get 2 terawatts watts. • - You get 1 more terawatt if you dam every other river on the planet and reach 30.0 Then he turned to the sun, his research focus, which bathes the planet in 800 teraw watts of energy continually. “We only need 18 of those terawatts,” he said. But the y , current level of investment in pursuing that energy, he cient . said, isn’t even close to suffic
  49. 49. Energy St Star • Features of ENERGY S STAR Qualified New Homes • To earn the ENERGY S STAR, a home must meet guidelines for energy effficiency set by the U.S. US Environmental Protectio Agency. These homes on are at least 15% more e energy efficient than homes built to the 2004 International Residential 4 Code (IRC), and include additional energy- e energy saving features that typically make them 20–30% more efficient than standard homes.
  50. 50. Energy St Star • Program Indicators in New York • 20,953 ENERGY STAR qualified homes built to date • 0 ENERGY STAR qualified homes built 2 lifi d h b ilt 2011 t d t to date • 2,696 ENERGY STAR qualified homes b built in 2010 • 1,054 ENERGY STAR for Homes Partne ers • ENERGY STAR qualified homes built in 2010 are the equivalent of: • Eliminating emissions from 1,321 vehicle es • Saving 7,990,944 lbs of coal • Planting 2 184 acres of trees 2,184 • Saving the environment 15,671,848 poun of CO2 nds • Based on national averages
  51. 51. 3. Energ Audits gy g Learning Objectives A. Discuss the Value of an Energy Audit B. Identify Problems Common to M Many Houses and Develop Possible Solutions C. Explain Issues that Result from Inadequate Insulation Levels D. Recognize the Dangers of Back Drafting k E. List Components of an Effective Energy Audit F. Summarize the Role of a Real Estate Licensee When Clients Call for an Energ A dit Energy Audit
  52. 52. Energy Audits rgy A. Professional Energy Audits 1. Value a) Determines Energy Efficiency of Building's Energy-Using Systems b) Identifies Health and Safety Issu ues, ues Building Durability c) Owners Should Identify any Kno own Indoor Environmental Problems, Humidity Issues d) Assemble Year's Worth of Energ Bills Year s gy e) Identify Usage During Weekday ys 2. Blower Door Test a) Powerful Variable-Speed Fan M Mounted into Frame of Exterior Door b) Pressure Gauge to Measure Pre essure Differences Inside and Out c) Ai fl ) Airflow M Manometer and H t d Hoses to M to Measure the Airflow th Ai fl as well
  53. 53. Ener Audits rgy A. Professional Energy Audits 3. Duct Leakage Testing fting of Combustion Appliances a) Leakage May Cause Back-Draf b) Properly Sealed Ductwork Increa ases Energy Efficiency c) More Comfortable Living Spaces d) Calibrated, Portable Fan Pressur rizes the Ducts and Measures Airflow to Indicate Total Leakage
  54. 54. Ene ergy Audits A. Professional Energy Audits 4. Thermographic Inspections a) Infrared Scanning to Detect Thermal Defects and Air Leakage in Building Envelope b) Measures Surface Temperatures especially during Blower Door Testing s, c) Checks Insulation Effectiveness d) Do on New Construction as well
  55. 55. Energy Audits B. B Hiring a Third Party 1. No National Guidelines a) Home Energy Rating System (HEERS) developed by Residential Energy Services Network (RESNET) b) Used by Federal Government and Many Others d 2. Hiring Guidelines ence in Testing for Energy Consumption, a) Gather Information about Experie Accreditation, Accreditation Certification b) Obtain Proof of Errors and Omiss sions Insurance c) Check References
  56. 56. Energy Audits B. Hiring a Third Party 3. Test- in/Test-out a) Homeowner Should be Present Both Times ) t b) Ideally Involve Three Steps: Fir Company Does Audit, Make the rst Upgrades, Different Company Tes Results of Upgrades sts c) Ethically, Company Must Disclo any Financial Interest in Upgrades ose 4. Residential Audits a) Local Utilities Often Offer Audits s b) Real Estate Licensees Should be Aware of Opportunities c) Should Not Make Recommenda ation for Specific Company 5. Commercial Audits centives a) Many States Offer Financial Inc b) Licensees Should be Aware
  57. 57. Ene ergy Audits C. Do It Yourself Audits 1. 1 Energy Star Home Energy Yards stick a) Requires Last Twelve Months of Utility Bills b) Basic Information About Property y 2. Home Energy Saver (HES) a) Maintained by Lawrence Berkele National Laboratory ey b) Calculates Savings by Making Energy-Efficiency Improvements c) Uses Zip Codes to Identify Applic cable Utility Costs for that Climate
  58. 58. Ener Audits rgy Common Problems and Solutions 1 . Inadequate Insulation Levels Allows Conditioned Air to Escape s b) Ice Dams: Frozen Water in Gutters Backs up Melting Water from Warm Roof . c) Recessed Lighting in Vaulted Ceilinggs c) Proper Insulation: Lower Energy Co osts and Prevention of Air Drafts 2. Air Leakage a) R ) Requires M i More E Energy t R HVAC to Run C b) Results in Uneven Air Temperatures in Different Parts of Room/House s 3. 3 Excessive Moisture a) Use Dehumidifier in Summer Month hs b) Install Air Exchanger 4. Improperly Vented Appliances a) Prevent Back Drafting: Flow of Fum into House and Not Up the mes Chimney b) C b M Carbon Monoxide E id Especially D i ll Dange erous c) Electrical Appliances Not As Danger rous
  59. 59. Audits in the Rea Estate Transaction al A. Role of the Real Estate Licensee 1. Be the Source of the Resource, N the Source of the Information Not 2. No Recommendations 3. No Affiliation with Suppliers B. Useful for Sellers 1. Determine If Feature or Appliance Adds To or Detracts From Asking e Price 2. Energy Saving 2 Energy-Saving Features Added to Multiple Listing Service (MLS) o Information y C. Useful for Buyers 1. Consider Impact of Energy Technology 2. May Choose to Pay More for Low Utility Costs wer
  60. 60. Preliminary Savings 42% Less Energy Use 35% Solar Power 60% Less Potable Water 78% Less Solid Waste 4 tons CO2 Avoided

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