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Green Building Techniques for RehabEmily Mitchell
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““What ought to be, can be, if we have the will to make it so.”What ought to be, can be, if we have the will to make it so.”- James W. Rouse- James W. Rouse
Extending Enterprise’s Vision
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Clear Cutting of Forested Land
Sprawl
Landfills at Capacity
Vacant and Abandoned Homes
Air Pollution
Drought and Desertification
Greenwashing
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IntegratedDesign
Energy Efficiency
Location and Neighborhood
Fabric
Materials Beneficial to the Environment
Operations and MaintenanceHealth
Water Conservation
Green Communities Criteria
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Building Typologies
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Broadway Crossings – Seattle, WA
Roanoke & Lee – Blacksburg, VARoanoke & Lee – Blacksburg, VA Westgate Terrace – Rochester, NYWestgate Terrace – Rochester, NY
Construction Types
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Geographic Locations
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Interdisciplinary approach to integration of green measures Overview of specifications and methods to accomplishing green
objectives
Category 1: Integrated Design Charrette
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Tremont Point, OhioTremont Pointe - Cleveland, OH
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Category 2: Site Planning and Layout
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Site Plan
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Context Map
KEY
----- .5 mile radius
● Schools
● Libraries
● Retail
● Doctor / Dental Clinics
● Grocery Store
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Atonatl Condominiums - Washington, DC
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Category 3: Site Improvements
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Spring Terrace – Austin, TX
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Toilet = 1.3 GPF or less, that meet performance
specificationwww.cwwa.ca/freepub_e.asp
Front load washers save 60%+
Showerheads = 2.0 GPM or less
Faucets = 2.0 GPM or less
Category 4: Water Conservation
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Minimum Energy Performance
New Homes (1-3 floors) - Energy Star Standards
Modeling to meet HERS requirements.
Mid-rise/high-rise - 15% better than ASHRAE 90.1
Modeling required, but no 3rd party testing.
Renovation - 15% improvement from existing
Requires energy audit and analysis.
Category 5: Energy Efficiency
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HERS Rating Certificate
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Tight Construction
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Improved Insulation Systems
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Poorly Installed Fiberglass Batts
What’s wrong with this picture?
Insulation
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HVAC System Efficiency
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Whole - building energy performance
Red Flags
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ENERGY STAR Appliances and Efficient Lighting
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Efficient Lighting
Red Flags
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Ripley Gardens – Minneapolis, MN
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Category 6: Materials Beneficial to the Environment
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Waste Reductions – delivery or disposal?
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Slides Courtesy of Tom Phillips, Seattle Housing Authority
Category 7: Healthy Living Environments
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Reducing VOCs
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Ventilation – Whole House and Exhaust
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62.1 applies to all spaces intended for residential structures except those within single-family houses, multifamily structures of three stories or fewer above grade.
62.2 applies to spaces intended for single-family houses and multifamily structures of three stories or fewer above grade.
ASHRAE Ventilation Standards
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Kitchens vented to the exterior
At least 100 CFM flow or 20 CFM continuous run
Kitchens Vented to Exterior
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Ventilation
Red Flags
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Red Flags
Moisture Mitigation
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Zone 1 - Highest Potential (greater than 4 pCi/L)
Zone 2 – Medium Potential (greater than 2 pCi/L)
Radon Mitigation
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Viking Terrace – Worthington, MN
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Manual & Orientation/Training
O&M info
Warranty procedures
Thermostat settings
Community amenities
What to expect
Category 8: Operations and Maintenance
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Project team indicates intent to meet criteria.
Identify mandatory measures and sufficient number of optional points
Submit documentation – site plan, context map
Inspections and testing conducted during construction to verify energy performance.
Key project team members certify that criteria has been built into plans and specs.
Follow-up inspections and performance testing conducted post-construction.
http://www.greencommunitiesonline.org/tools/certification_process.asp
Green Communities Certification Process
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Research Highlights
On average, it costs $5 per square foot to meet the mandatory Green Communities Criteria.
Buildings meeting the basic Criteria cut water costs by 20 percent and energy costs by 25 to 30 percent.
Healthier homes designed to reduce childhood asthma result in a 60 percent increase in symptom-free days; annual emergency room and urgent care visits fell by 67 percent.
Incremental Costs, Measurable Savings report available at: www.enterprisenextgen.org
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www.greencommunitiesonline.org