Sustainable housing and building green rcbor presentation 5 10-11
Sustaina able Housing and Buiilding Green What Agents Sh ld Know Wh t A t Should K
Seminar Outline r1.Real Estate Licensees and Green Building s2.Sustainable Building C Concepts3.Energy Audits
1. Real Estate Lice ensees and Green Build dingLearning ObjectivesA.Summarize the ways that real esta licensees assist consumers by ateresources and laying out optionsB. Differentiate between sustainable and green buildingC. Identify tipping points that have le to greater green awareness edD. Recognize that the federal govern g g nment is not setting standards for gsustainable housing or building gree enE. Explain the value of life cycle ana alysis when choosing greenmaterials t i l
OverviewA. Impact of Buildings on the Environment nB. Real Estate Licensees Challenged to Better AssistConsumers
Meeting Consumer Co g oncernsA. Licensee Roles1. Licensee as Gate Ke eeper2. Licensee as Educato or3. Licensee as Fiduciary
B. Dispelling Myths1. Myth 1: Green B ildi i Complicated1 M h#1 G Building is Co li d2. Myth #2: Consumers are not c concerned with building green3. Myth #3 : Green building is ex xpensive EPC s EPC’s – Energy Saving Performance Contracts Integrative Design
Key Findings America Institute of Architects an Nationwid Voter Survey 2009 deThinking bThi ki about energy in th United States -- h would you i h U i dS he how ldcharacterize the energy situa ation right now in this country? Would yousay that: 2009 2007We are doing well 4 5We are doing okay 17 19We are having some problem ms 29 34We are on the verge of a cris sis 28 28We are in an energy crisis 21 13COMMENT: Voters see the ene ergy problem more negatively than they did twoyears ago, but not by large mar rgins. Doing “well” and “okay” combined hasdeclined from 24% to 21% and “verge of a crisis” combined with “in an energycrisis” 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 onedegree or another.
Key Findings America Institute of Architects an Nationw wide Voter Survey 2009Issue importance (10-point scale): 9s and 10s 2009 Mean 2009 2007 2004Making U.S. less dependent on foreign oil t 8.60 65 61 51Controlling medical insuran costs nce 8.33 64 67Protecting against air and w water pollution 7.89 7 89 44 48 41 41*Increasing # of energy effici buildings ient 7.67 39 36Holding down the price of g gasoline 7.55 47 51Controlling electricity and u utility rates 7.51 41 46 47Reducing greenhouse gas emmissionsthat may cause global warm ming 6.85 6 85 35 42COMMENT: Energy dependen and increasing the number of energy efficient ncebuildings are the only two issue that increased in importance among respondents eswho gave them 9 or 10 ratings All the other issues declined somewhat in ratings.importance. Notably, reducing g greenhouse emissions declined 7 points.
Differences between Sustainable and Green Building eA. 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 tB. 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
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 ConsumeB. Energy Costs 1. Increasing Electricity Coosts 2. Rising Costs of Utilities Negatively Impact Home Buying PowerC. Influence of Global Warmingg 1. Warming Due to Air Pol llution and Greenhouse Gases 2. Green Components in CCommercial Building Filtering into Residential Market
Emerging Quantifiable Rating Systems gA. 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 GlobesB. Life Cycle AnalysisC. Regional Priority g y
New ResponsibilitiesA. 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 moneyB. Changing Roles of Real Esta Licensees ate
2. Sustainab Building ble g ConcceptsLearning Obj tiL i ObjectivesSustainable Building ConceptsA. Name and Define Three Green Build ding PrinciplesB. Describe Components of Green Building p gC. Identify the Advantages of Using Bro ownfields and Renovating ExistingBuildingsD. Compare Differences Between Fiber rglass Insulation, Cellulose Insulation,and Spray FoamE. List Ways to Effectively Tighten the B Building Envelope
OverviewA. Consumers A UA C Are Unawar reB. Green Building Mantra: Reduce, Reuse, RecycleC. Common Misinterpretati ions and Misuse ofEnvironmental Efforts
Sustainable Design and Buildin ngA. Building Green1.1 Energy Efficient2. Minimize Environmental Imp pactB. 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 Earths natu resources ural
Whole Building Approac chA. Must Consider Total Picture - Triple Bottom Line1. Economic Costs2. Energy Performance3. Environmental IssuessUSGBCNYSDEC
Low-Mid Rise Multifamily Detached Single Family HomesMixed Use (min 50% Residential) Attached Single Family Homes
Project Manag gement1.1 Team Approach Critical to Finished Project On Time da) No Statistical Difference Between C Cost of Building Green and Traditional Building gb) Owners Set the Stagec) "How Can We Do This?"2. Integrated Design2 I t t dD ia) An Element Has More than One Fuunctionb) Color – Light – HVAC Equipmentc) Flooding - Drought - Water Use3. Licensee Rolea) Be Aware of Marketability of Energ gy-Efficient Buildingsb) Provide Information to Builders and Developers d
Use Land Responsibly1 . 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 ) p2. Reclaim Brownfields a) Property that Are, Were, or Are C Contaminated b) Can Assist in Reviving Depresse Areas ed
Build Close to TB ild Cl Transportation i n1. Transit oriented development (TOD)a) Easily Use and Depend on Mass Transportation nb) High-Density, Mixed-Use C Communities2. Encouraged by Rating Sys stemsEnergy Efficiency1. Conserve Energya) Reduce Demandb) R l on E Rely Energy N t C ted by Fossil F l Not Created b F il Fuels2. Use Renewable Energya) Avoid Fossil Fuels (Petrole eum Based) eum-Based)b) Power from Sun, Water, W Wind, Geothermal, Waves,Biofuels
Sustainable SitesMaintenance of a build ’ site i aM i t f b ild ding’s it is difundamental component of comprehensive,sustainable building op peration.
Sustainable SitesThe United States l ne loses 2 billi tTh U it d St t alon l billion tonsof topsoil per year. This is of great ecologicalconcern as one inch of topsoil can take 500 fyyears to form naturallyy
Tight Envelope To Reduce Air Leakage1. Windowsa)Low Emissivity (Low-E) Glaze to Ref ) y( ) flect Radiant Indoor Heatb) U-value: Measure the Rate of Heat P Passing Through a Barrier,Lower Numbers More Efficientc) Solar Heat Gain Coefficient (SHGC): Measures How WellWindow PWi d Prevents Heat from Sun from E t i B ildi t H tf S f Entering Building, L LowerNumbers More Efficient2.2 Insulation Prevents Loss of Condition Air neda) R-factor: Rates Ability of Insulation to Prevent Flow of Heat, oHigher Numbers Prevent More Heat Lo g ossb) Fiberglass insulation: Recycles Mate erials, Difficult to Ignite butBurns Fast, R-Values Deteriorate with T Temperature Differentialsc) Cellulose insulation: Recycled News spapers, Burning Retarded,Fills Nooks and Crevicesd) Spray Foam – Polyurethane, air and heat barrier d
G.G Tight Envelope To Reduce Air Leakage r3. 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
Use Electricity WiselyA. Reduce Plug Loada) Many Appliances Continuually "On" Pulling Powerb) Appliances More than 10 Y A li M th 0 Years Sh ld b R l Should be Replaceddc) Use Electronic Power Co ontroller for Appliances morethan 10 years oldd) Computers and printers a major energy users are www.energystar.gov/B Choose Energy-Efficient App gy Appliancesa) Tankless Water Heatersb) Programmable Thermost tatsc) Ductless Air Conditioning gd) Geothermal Heat Pumps s
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
Use Electricity Wi lU El t i it WiselyC.C Renewal Power Sources1. Solar Powera) Photovoltaic CPV) Cells Convert Suns Energy intoElectricityb) Manufacture and Dispoosal of PV Cells haveEnvironmental Impactc) Cost Expected to Drop2.2 Wind Powera) Turbine Blades Conver Wind to Electricity rtb) Smaller Turbines for Re esidential Usec) Wind Farms Being Built Off-Shore
D. Conserve W tD C Water1. 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 Water2. 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
Conserve WaterFlooding and DroughtsMississippi•1968 National Flood Insur rance Program•100 yr flood protection•Corps of Engineers wanted a minimum 500-year C f i i i 00standard for densely p p ated areas y popula•Developers wanted 50 yrs std. s
Conserve Water“The reality is that, over the 30- -year life of a typicalhome mortgage, there is a 26% chance of a flood that exceeds mortgagethe 100-year standard. Over the course of a century, there is a63% chance that a flood greater than the 100-year standard willstrike, a 26% chance of two such floods, and an 8% chance of hthree such floods. So it is hardly a statistical surprise that the yupper Midwest suffered 100 yea floods in 1993 and 2008. 100-yea ar 2008.” WSJ Article 4-30-2011
Conserve WaterJapan and the Netherlan for example, protect nds,against river floods to a 2,000-year standard fordensely populated areas and a 200-year standard for rural zones.
Water Efficiency yAmericans extract 370 billion gallons per 00year more than they re eturn to the naturalwater system to rechar aquifers and other t t t h rge if d thwater sources.
D. Conserve Water3. Beneficial Landscapinga) Preserve Existing Ecos systems, such as Wildlife Habitatb) Reduce Need for Exce Water for Landscaping essc) Reduce Possibility of G Groundwater and Soil Contamination4.4 Xeric plants Requirementsa) Less Waterb) Less Attentionc) Fewer Chemicalsd)Fewer Pesticides
D. Conserve Water6. Microdrip Water Systemsa) Use 20 to 50 Percent Less Water than Sprinkler Systemsb) Littl e or No Water Lost to E Evaporationc) Water Delivered Directly to Plantsd) Up front Costs More than T Traditional Sprinkler Systemse) Save on Water Usage7. Water Collection Systemsa) Most Used for Irrigationb) Thousands of Gallons of WWater Gained from Collection
Water Saving .5 g gpm aerators 1.0 or .5 gpm (.35 gpm) 5 <$5
Material Efficiency1. Reduce a) Print Double Sided b) Coffee Mugs , Refilable Wat Bottles. ter c) Bldg Materials - Roof Insula ation3. 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) Reconstruction4. Recycle a) Break Down Materials b) Reassemble for New Purpos se c) Examples: Newspapers, Concrete, Glass, Aluminum
F. Manage Construction and Demo olition (C&C) Debris1. Deconstructiona) Dismantle and Remove Before Building Torn Down ) e gb) Advantages: Lower Overall Bu uilding Removal; Reduce Impact toSite; Save Space in Landfills; Cre eates More Jobsc) Example: Big Dig House, Lexin ngton, MAd) Benefits C l l t D B fit Calculator: Deconstru ti I tit t t uction Institute2. Factory-Built Construction Adva antagesa) Better Use of Expensive Materrialsb) Protect from Weather and Theeftc) More Exacting Construction St ) g tandardsd) Higher Quality Controle) Less Waste
E. Indoor Air QualityI. Time Indoors Equals 90%a) Live in Conditioned Air )b) Indoor Air up to 90% Less H Healthy than Outdoor Airc) Accounts for Many Missed Days of Workd) Many Pollutants Cause Prooblems2. Minimize Molda) Relative Humidity Less than 55%b) Repair Water Leaks Promp ptly3. Minimize off- gassing offa) Release of Gases into Air o Chemicals Used in ofManufacture ofProductb) Called Volatile Organic Com mpounds (VOCs)c) Formaldehyde Main Culprit td) U P i t wi th L Use Paints i Low or No VOC No VOCs
E. Indoor Air Quality4. Bring in Fresh Air a) Air Tight Buildings Contro Conditioned Air ol b) Use Air Exchangers5. 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
Energy and A AtmosphereDr. Nocera said human activities, in energy nterms,terms right now are es ssentially a “12 8 12.8trillion watt light bulb.” Our energy thirst willprobably be 30 trillion w watts, watts or 30terrawatts, by 2050 wit the human thpopulation h di t ward 9 billi l ti heading tow d billion.
• - 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 30.0Then he turned to the sun, his research focus, whichbathes 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
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.
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
3. Energ Audits gy gLearning 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
Energy Audits rgyA. Professional Energy Audits1. Valuea) Determines Energy Efficiency of Buildings Energy-Using Systemsb) Identifies Health and Safety Issu ues, ues Building Durabilityc) Owners Should Identify any Kno own Indoor Environmental Problems,Humidity Issuesd) Assemble Years Worth of Energ Bills Year s gye) Identify Usage During Weekday ys2. Blower Door Testa) Powerful Variable-Speed Fan M Mounted into Frame of Exterior Doorb) Pressure Gauge to Measure Pre essure Differences Inside and Outc) Ai fl ) Airflow M Manometer and H t d Hoses to M to Measure the Airflow th Ai flas well
Ener Audits rgyA. Professional Energy Audits3. Duct Leakage Testing fting of Combustion Appliancesa) Leakage May Cause Back-Drafb) Properly Sealed Ductwork Increa ases Energy Efficiencyc) More Comfortable Living Spacesd) Calibrated, Portable Fan Pressur rizes the Ducts and Measures Airflow toIndicate Total Leakage
Ene ergy AuditsA. Professional Energy Audits4. Thermographic Inspectionsa) Infrared Scanning to Detect Thermal Defects and Air Leakage in BuildingEnvelopeb) Measures Surface Temperatures especially during Blower Door Testing s,c) Checks Insulation Effectivenessd) Do on New Construction as well
Energy AuditsB.B Hiring a Third Party1. No National Guidelinesa) Home Energy Rating System (HEERS) developed by Residential EnergyServices Network (RESNET)b) Used by Federal Government and Many Others d2. Hiring Guidelines ence in Testing for Energy Consumption,a) Gather Information about ExperieAccreditation,Accreditation Certificationb) Obtain Proof of Errors and Omiss sions Insurancec) Check References
Energy AuditsB. Hiring a Third Party3. Test- in/Test-outa) Homeowner Should be Present Both Times ) tb) Ideally Involve Three Steps: Fir Company Does Audit, Make the rstUpgrades, Different Company Tes Results of Upgrades stsc) Ethically, Company Must Disclo any Financial Interest in Upgrades ose4. Residential Auditsa) Local Utilities Often Offer Audits sb) Real Estate Licensees Should be Aware of Opportunitiesc) Should Not Make Recommenda ation for Specific Company5. Commercial Audits centivesa) Many States Offer Financial Incb) Licensees Should be Aware
Ene ergy AuditsC. Do It Yourself Audits1.1 Energy Star Home Energy Yards sticka) Requires Last Twelve Months of Utility Billsb) Basic Information About Property y2. Home Energy Saver (HES)a) Maintained by Lawrence Berkele National Laboratory eyb) Calculates Savings by Making Energy-Efficiency Improvementsc) Uses Zip Codes to Identify Applic cable Utility Costs for that Climate
Ener Audits rgyCommon Problems and Solutions1 . Inadequate Insulation Levels Allows Conditioned Air to Escape sb) Ice Dams: Frozen Water in Gutters Backs up Melting Water from WarmRoof .c) Recessed Lighting in Vaulted Ceilinggsc) Proper Insulation: Lower Energy Co osts and Prevention of Air Drafts2. Air Leakagea) R ) Requires M i More E Energy t R HVAC to Run Cb) Results in Uneven Air Temperatures in Different Parts of Room/House s3.3 Excessive Moisturea) Use Dehumidifier in Summer Month hsb) Install Air Exchanger4. Improperly Vented Appliancesa) Prevent Back Drafting: Flow of Fum into House and Not Up the mesChimneyb) C b M Carbon Monoxide E id Especially D i ll Dange erousc) Electrical Appliances Not As Danger rous
Audits in the Rea Estate Transaction alA. Role of the Real Estate Licensee1. Be the Source of the Resource, N the Source of the Information Not2. No Recommendations3. No Affiliation with SuppliersB. Useful for Sellers1. Determine If Feature or Appliance Adds To or Detracts From Asking ePrice2. Energy Saving2 Energy-Saving Features Added to Multiple Listing Service (MLS) oInformation yC. Useful for Buyers1. Consider Impact of Energy Technology2. May Choose to Pay More for Low Utility Costs wer
Preliminary Savings42% Less Energy Use35% Solar Power60% Less Potable Water78% Less Solid Waste4 tons CO2 Avoided