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Leed for-homes
 

Leed for-homes

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    Leed for-homes Leed for-homes Presentation Transcript

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