Leed for-homes

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Leed for-homes

  1. 1. LEED for HomesTips for Successful Projects<br />Ann Edminster<br />M.Arch., LEED AP<br />Design AVEnues avedminster@designavenues.net | 115 Angelita Avenue | Pacifica, CA 94044 | 650-355-9150<br />© Design AVEnues 2009. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited.<br />
  2. 2. The Main Points<br />Understand the program<br />Understand the process<br />Use integrative design<br />Model early & often<br />Get the order right<br />Set expectations<br />Manage the process<br />
  3. 3. ± 90<br />PLATINUM<br />± 75<br />GOLD<br />± 60<br />SILVER<br />± 45<br />CERTIFIED<br />UNDERSTAND THE PROGRAM<br />Comply with all MANDATORY MEASURES, a.k.a. prerequisites<br />Meet or exceed category POINT “FLOORS”<br />Achieve minimum overall SCORE<br />
  4. 4. The Threshold Adjuster<br />… compensates for the overarching effect of home <br />size on resource use by adjusting the award level <br />point thresholds based on floor area. <br />
  5. 5. Home Size<br />In 1950<br />In 1970<br />1.6x 1950<br />297 SF/personaverage floor area 1,000 SF 3.37 people per household<br />478 SF/person average floor area 1,500 SF 3.14 people per household<br />In 2000<br />2.8 x 1950<br />840 SF/person average floor area 2,200 SF 2.62 people per household<br />
  6. 6. The Rating CategoriesID LL SS WE EA MR EQ AE<br />INNOVATION & DESIGN PROCESS<br />INDOOR ENVIRONMENTAL QUALITY<br />ENERGY & ATMOSPHERE<br />SUSTAINABLE SITES<br />LOCATION & LINKAGES<br />WATER EFFICIENCY<br />MATERIALS & RESOURCES<br />AWARENESS & EDUCATION<br />
  7. 7. Points, Floors, Prerequisites<br />POINTS: 22FLOOR: 5 PREREQS: 2<br />POINTS: 11 FLOOR: 0PREREQS: 3<br />POINTS: 38FLOOR: 0PREREQS: 8<br />POINTS: 21FLOOR: 6 PREREQS: 7<br />ID LL SS WE EA MR EQ AE<br />POINTS: 15FLOOR: 3 PREREQS: 0<br />POINTS: 16FLOOR: 2 PREREQS: 3<br />POINTS: 3FLOOR: 0PREREQS: 1<br />POINTS: 10FLOOR: 0 PREREQS: 0<br />
  8. 8. USGBC<br />PROVIDER<br />PROJECT TEAM<br />The Delivery System<br />GREEN RATER<br />
  9. 9. Roles & Responsibilities<br />PROVIDER<br /><ul><li> Oversight  Certification  Quality assurance  Liaison to USGBC</li></li></ul><li>Roles & Responsibilities<br />PROVIDER<br /><ul><li> Oversight  Certification  Quality assurance  Liaison to USGBC</li></ul>GREEN RATER<br /><ul><li> Preliminary review
  10. 10. LEED on-site verification
  11. 11. Navigational support
  12. 12. Certification administration
  13. 13. Consulting (sometimes)</li></li></ul><li>Roles & Responsibilities<br />PROVIDER<br /><ul><li> Oversight  Certification  Quality assurance  Liaison to USGBC</li></ul>GREEN RATER<br /><ul><li> Preliminary review
  14. 14. LEED on-site verification
  15. 15. Navigational support
  16. 16. Certification administration
  17. 17. Consulting (sometimes)</li></ul>HERS RATER<br /><ul><li> HERS on-site verification
  18. 18. Performance testing
  19. 19. Modeling (sometimes)</li></li></ul><li>Roles & Responsibilities<br />PROJECT TEAM<br /><ul><li>COMMIT (Contract Documents)
  20. 20. Plan and follow through
  21. 21. Document your decisions
  22. 22. Prepare submittals</li></li></ul><li>Roles & Responsibilities<br />PROJECT TEAM<br /><ul><li>Submittals
  23. 23. Durability forms
  24. 24. CIR/ID proposals
  25. 25. Accountability Forms
  26. 26. EPP information
  27. 27. O&M manual
  28. 28. Additional documentation</li></li></ul><li>UNDERSTAND THE PROCESS<br /><ul><li>Pre-construction
  29. 29. During Construction
  30. 30. Completion</li></li></ul><li>The LEED for HomesProcess<br />SELECT PROVIDER<br />SELECT GREEN RATER<br />REGISTER ONLINE<br />CONFER WITH GREEN RATER & REVIEW PLANS<br />BUILD GREEN HOME(S)<br />SUBMIT INITIAL PAPERWORK<br />DOCUMENTATION& FINAL VERIFICATION<br />PRE-DRYWALL VERIFICATION<br />COMPLETE HOME(S) & LANDSCAPE<br />PRE-DRYWALL VERIFICATION<br />COMPLETE HOME(S) & LANDSCAPE<br />Certification!<br />
  31. 31. CONFER WITH GREEN RATER & REVIEW PLANS<br />PRE-CONSTRUCTION<br /><ul><li>Review design with Provider & Green Rater
  32. 32. Identify additional work needed
  33. 33. Estimate score and rating level
  34. 34. Promote per USGBC guidelines (optional)</li></li></ul><li>PRE-CONSTRUCTION<br />SUBMIT INITIAL PAPERWORK<br /><ul><li>Durability Risk Evaluation
  35. 35. Durability Checklist
  36. 36. HERS Report (energy modeling)
  37. 37. Waste Diversion Plan</li></li></ul><li>DURING CONSTRUCTION<br />PRE-DRYWALL VERIFICATION<br />PRE-DRYWALL VERIFICATION<br /><ul><li>Thermal bypass inspection
  38. 38. Durability / envelope measures (optional)
  39. 39. Site protections</li></li></ul><li>COMPLETION<br />DOCUMENTATION<br /><ul><li>Accountability forms 
  40. 40. O&M manual
  41. 41. Materials list
  42. 42. Calculations, etc.</li></li></ul><li>COMPLETION<br />MANDATORY TESTS<br /> Envelope air leakage<br /> Duct leakage<br /> Refrigerant charge<br />OPTIONAL TESTS<br /> Outdoor air flow<br /> Exhaust air flow<br /> Supply air distribution<br /> Irrigation system<br />& FINAL VERIFICATION<br /><ul><li>On-site verification
  43. 43. Performance testing
  44. 44. Paperwork verification
  45. 45. Scoring & rating
  46. 46. Certification</li></li></ul><li>USE INTEGRATIVE DESIGN<br />Courtesy of Duncan Prahl, IBACOS<br />
  47. 47. USE INTEGRATIVE DESIGN<br /> “Integrated design can reduce construction cost while providing significant sustainable design benefits. On the CSU Monterey Bay Library, by comparing a number of integrated structural, mechanical, and architectural schemes, we found that tradeoffs from one discipline more than offset added costs in another, while achieving energy savings of almost 40%.”<br />~ Scott Shell, EHDD Architects<br />Courtesy of Duncan Prahl, IBACOS<br />
  48. 48. “Any phenomenon is controlled both by the working of its smaller parts and by its role in the larger system of which it is a part.” <br /><ul><li>H.T. Odum (Environment, Power & Society, 1971)</li></li></ul><li>The integrative design process<br />Recognizes that each aspect of building design influences others<br />Envelope affects HVAC sizing<br />Windows affect lighting loads<br />Lighting affects cooling loads<br />Waste heat from one process can be pre-heating for another<br />© Eraxion | Dreamstime.com<br />
  49. 49. Keys to integrative design<br />Commit to the integrative design process<br />Hold a charrette<br />Have regular meetings<br />Establish communication protocols<br />Identify scope of responsibilities and interactions for all parties<br />
  50. 50. Build your team <br />Assess your team’s capabilities<br />Identify any voids <br />Fill the voids<br />Energy savvy?<br />© Dandanos | Dreamstime.com<br />
  51. 51. Who should be involved?<br />
  52. 52. Who should be involved?<br />Owner/developer<br />Architect<br />General contractor<br />MEP consultant(s)<br />Energy analyst<br />Landscape designer<br />Interior designer<br />Others …<br />© Pressmaster | Dreamstime.com<br />
  53. 53. Who should be involved?<br />Owner/developer<br />Architect<br />General contractor<br />MEP consultant(s)<br />Energy analyst<br />Landscape designer<br />Interior designer<br />Others …<br />One and the same?<br />© Pressmaster | Dreamstime.com<br />
  54. 54. The integrative design process<br />Develop a design concept<br />Test alternatives using parametric analysis – evaluate effect of one variable at a time on:<br />energy performance<br />constructability & cost<br />other aspects of design<br />Test different combinations<br />© Antonprado | Dreamstime.com<br />
  55. 55. MODEL EARLY & OFTEN<br />Energy modeling: it’s not just about compliance – it’s a design tool!<br />
  56. 56. MODEL EARLY & OFTEN<br />© Kellyoptra | Dreamstime.com<br />Energy modeling: it’s not just about compliance – it’s a design tool!<br />
  57. 57. MODEL EARLY & OFTEN<br />NOT<br />© Kellyoptra | Dreamstime.com<br />© Brandonparry | Dreamstime.com<br />Energy modeling: it’s not just about compliance – it’s a design tool!<br />
  58. 58. Your energy consultant<br />Choosing a good one<br />Experience matters (relevantexperience)<br />Mindset matters (maybe even more!)<br />Collaborating<br />A member of the design team<br />Your mechanical engineer, possibly?<br />Needs to understand all the design opportunities<br />
  59. 59. When and why should you do energy modeling?<br />Before the charrette<br />During the charrette<br />To test design options <br />To qualify for tax credits & other incentives<br />To comply with green building programs<br />To capture the performance as accurately as possible!<br />EARLY & OFTEN!<br />
  60. 60. GET THE ORDER RIGHT<br /><ul><li> The Basics</li></ul>Siting<br />Massing<br />Orientation<br />© Gabigarcia | Dreamstime.com<br />
  61. 61. GET THE ORDER RIGHT<br /><ul><li> The Basics</li></ul>Siting<br />Massing<br />Orientation<br />Sun<br />Wind<br />Water<br />Neighbors<br />Trees<br />© Gabigarcia | Dreamstime.com<br />© Serg_velusceac | Dreamstime.com<br />
  62. 62. <ul><li> Minimize Occupant-driven Loads</li></ul>Can you control the stuff?<br />
  63. 63. <ul><li> Minimize Occupant-driven Loads</li></ul>Can you control the stuff?<br />Design can influence energy-use behavior<br />Cross-ventilation, etc.<br />Tassafaronga, David Baker + Partners<br />
  64. 64. <ul><li> Minimize Occupant-driven Loads</li></ul>Can you control the stuff?<br />Design can influence energy-use behavior<br />Cross-ventilation, etc.<br />Monitoring & feedback<br />Courtesy Lucid Design Group<br />Tassafaronga, David Baker + Partners<br />
  65. 65. <ul><li> Minimize Enclosure Loads</li></ul>It’s all about the envelope!<br />Mike Keesee, SMUD, Project Manager, The House of the Future<br />
  66. 66. <ul><li> Minimize Enclosure Loads</li></ul>Window orientation & size<br />Window shading<br />Window R-value(not U!)<br />Window SHGC<br />It’s all about the envelope!<br />Mike Keesee, SMUD, Project Manager, The House of the Future<br />
  67. 67. <ul><li> Minimize Enclosure Loads</li></ul>Window orientation & size<br />Window shading<br />Window R-value(not U!)<br />Window SHGC<br />Structure (thermal bridging)<br />It’s all about the envelope!<br />Mike Keesee, SMUD, Project Manager, The House of the Future<br />
  68. 68. <ul><li> Minimize Enclosure Loads</li></ul>Window orientation & size<br />Window shading<br />Window R-value(not U!)<br />Window SHGC<br />Structure (thermal bridging)<br />Air leakage<br />It’s all about the envelope!<br />Mike Keesee, SMUD, Project Manager, The House of the Future<br />
  69. 69. <ul><li> Minimize Enclosure Loads</li></ul>Window orientation & size<br />Window shading<br />Window R-value(not U!)<br />Window SHGC<br />Structure (thermal bridging)<br />Air leakage<br />Insulation quantity<br />Insulation quality<br />It’s all about the envelope!<br />Mike Keesee, SMUD, Project Manager, The House of the Future<br />
  70. 70. <ul><li> Minimize Equipment Loads</li></ul>Heating efficiency & sizing<br />Cooling efficiency & sizing<br />Duct leakage & sizing<br />Water heater efficiency <br />Hot water distribution<br />Lighting<br />Appliances<br />© Caraman | Dreamstime.com<br />
  71. 71. <ul><li>Integrate the Other Issues</li></ul>Indoor environmental quality<br />
  72. 72. <ul><li>Integrate the Other Issues</li></ul>Indoor environmental quality<br />Water efficiency<br />Plumbing<br />Plants <br />Irrigation <br />
  73. 73. <ul><li>Integrate the Other Issues</li></ul>Indoor environmental quality<br />Water efficiency<br />Plumbing<br />Plants <br />Irrigation <br />Materials<br />
  74. 74. <ul><li>Integrate the Other Issues</li></ul>Indoor environmental quality<br />Water efficiency<br />Plumbing<br />Plants <br />Irrigation <br />Materials<br />Site and stormwater protections<br />
  75. 75. <ul><li>Integrate the Other Issues</li></ul>Indoor environmental quality<br />Water efficiency<br />Plumbing<br />Plants <br />Irrigation <br />Materials<br />Site and stormwater protections<br />Renewable energy<br />
  76. 76. SET EXPECTATIONS<br />LEED for Homes is an above-codeprogram<br />It will require change from all parties<br />Anticipate needs for education<br />Document all agreements<br />
  77. 77. Focus on what’s different<br /><ul><li>Energy Star / Thermal Bypass Checklist</li></li></ul><li>Focus on what’s different<br /><ul><li>Energy Star / Thermal Bypass Checklist
  78. 78. Durability planning</li></li></ul><li>Focus on what’s different<br /><ul><li>Energy Star / Thermal Bypass Checklist
  79. 79. Durability planning
  80. 80. Waste planning</li></li></ul><li>Focus on what’s different<br /><ul><li>Energy Star / Thermal Bypass Checklist
  81. 81. Durability planning
  82. 82. Waste planning
  83. 83. Operations & maintenance manual</li></li></ul><li>Offer education & resources<br />HERS Rater shadowing<br />Diagnostic pre-testing<br />Trades training<br />Resource listings<br />Waste diversion opportunities & methods<br />Continuing education = competitive advantage<br />Learning curve = continuing education investment, not a cost of the project.<br />
  84. 84. Understand cost impacts<br />New practices<br /><ul><li>You’re no longer creating the same product, so the cost will probably change;how much depends on current practices.</li></li></ul><li>Hyundai? … or Honda?<br /><ul><li>More fuel-efficient
  85. 85. More durable
  86. 86. Better-designed
  87. 87. More comfortable
  88. 88. Superficially similar, but … </li></ul>Cost difference? Substantial.<br />
  89. 89. Honda? … or Honda with sunroof?<br /><ul><li>Same fuel efficiency
  90. 90. Same durability
  91. 91. Same design quality
  92. 92. Slight increase in comfort
  93. 93. Pretty much the same – </li></ul>Cost difference? Minor.<br />
  94. 94. Understand cost impacts<br />New practices<br />New baseline, new product, new price?<br />Learning curve<br />One-time investment benefits all future projects<br />
  95. 95. Understand cost impacts<br />New practices<br />New baseline, new product, new price?<br />Learning curve<br />One-time investment benefits all future projects<br />Program administration<br />Verification + Quality Management = VALUEADDED<br />
  96. 96. MANAGE THE PROCESS<br />Assign responsibility for every credit<br />
  97. 97. Manage the process<br />Assign someone to shepherdthe responsible parties<br />Check in with key parties monthly<br />Prompt for questions, documentation<br />© Koljambus | Dreamstime.com<br />
  98. 98. Manage the process<br />Provide research and tracking tools (MR2)<br />
  99. 99. Manage the process<br />Provide research and tracking tools (MR3)<br />
  100. 100. Manage the process<br />Provide research and tracking tools (WE3)<br />
  101. 101. Manage the process<br />Ensure every LEED measure being pursued is in the construction documents!<br />
  102. 102. Keys to success<br /><ul><li>Commitment
  103. 103. Capacity-building
  104. 104. Planning & organization
  105. 105. Selling the benefits
  106. 106. Ongoing communication</li></li></ul><li>Q & A<br />Thank you!<br />avedminster@designavenues.net<br />

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