DOES BUILDERS CHALLENGE

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OCTOBER 22, 2008
DOES BUILDERS CHALLENGE
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150
American Standard Existing Home
American Standard Home
100
85
ENERGY STAR
Tax Credit/2006 Building America Home
70
Heathers Home 55
St. John 52
Vaught Home 47
0
Net Zero Energy Home
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TEAM ASSEMBLY

• Builder

• Architect/Designer

• Landscape Design

• Home Energy Rater Verifier

• Modeling

• Lender Appraiser

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CHARACTERISTICS

• Less Energy

• Less Water

• Less Natural Resources

• Durable / Low-Maintenance

• Creates Less Waste

• Healthier More Comfortable

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CHARACTERISTICS

• Lower Energy Bills

• Lower Water Bills

• Reduced Greenhouse Emissions

• Improved Indoor Air Quality

• Increased Comfort

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DESIGN PRINCIPLES

• Building Should be Elongated on an East-West
  Axis
• to Control Hot Summer Sun

• Light Color, Highly Reflective and
  Low-Emissivity Roof

• Utilize Natural Breezes and Shading

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HIGH PERFORMANCE HOMES
Solar is a major contributor to energy
inefficiency but an easy problem to downgrade if
you dont mind a little window dressing. Awnings
may reduce the energy needed to cool a home by
almost 25 in Boston 40 in Sacramento 70 in
Seattle. Of course, shady conditions can also be
achieved with site planning for minimal solar
exposure, tree coverage and permanent
architectural overhangs or screens on the facades
of sunny elevations. Builder Magazine, September
2007
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PASSIVE SOLAR DESIGN
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PASSIVE SOLAR DESIGN
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PASSIVE SOLAR DESIGN
PORCHES
SOUTH ORIENTATION
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PASSIVE SOLAR DESIGN
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MATERIAL CHOICES

• Choose Recycled or Reclaimed Materials

• Choose Wind/Impact-Resistant, Durable Materials

• Build to Avoid Cuts and Sizes to Minimize Waste

• Optimize Material Selections that Provide
  Greater
• Energy Savings

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SIPS
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SIPS
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ICFS
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ADVANCED FRAMING

• 19.2" or 24" on-center framing, floor systems
• 19.2" or 24" on-center framing, bearing walls
• 24" on-center framing, roof systems
• 24 on-center interior partitions
• Single top plate walls
• Right-sized headers or insulated (box) headers
  (where required)
• Eliminate headers in non-bearing walls
• Doubling the rim joist in lieu of header (2x6 or
  deeper wall framing)
• Ladders blocking at interior-wall-to-exterior-wall
  intersections
• Two stud corner framing

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SPRAY FOAM INSULATION
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ROOFING
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SOLAR HOT WATER
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LIMIT OR ELIMINATE VOCS

• Low VOC Low Odor

• Long-Term Durability

• Maintain Performance

• Green Seal Certification

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HVAC AIR INFILTRATION

• Choose High Efficiency Equipment- SEER

• Use Programmable Thermostats

• Correct Ventilation

• Correct Sizing- Manual J

• Correct Ducts- Manual D

• Correct Sealing

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DUCT LOCATION
Oak Ridge National Laboratory
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HEALTH

• Maintain Indoor Relative Humidity (35-50)

• Use Low or No VOC Paints, Stains Adhesives

• Use Easy to Clean Materials

• Use Certified Green Carpets

• Eliminate Garages from Conditioned Spaces

• Use Green Guard Certified

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AIR FILTRATION SYSTEMS

• Minimum Efficiency Reporting Value MERV

• Higher the MERV Higher the Filtration

• Systems May Include HEPA Filter and Purifier

Lennox PureAir
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HEALTHY KITCHEN
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ENERGY STAR APPLIANCES
Energy Star identifies this washing machine as at
least 50 more efficient that most top load
machines
Appliances lighting can account for 20-40 of
home energy use
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ENERGY STAR LIGHTING
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CASE STUDIES
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2005 EVHA HOME - CONSTRUCTION

• SIP Walls (6 ½) and Roof (8 3/8)

• Sealing with Expanding Foam
• Splines
• Slab
• Wall/Roof Intersections

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2005 EVHA HOME - CONSTRUCTION

• House Wrap over Exterior SIP Walls

• All Window Door Penetrations Flashed

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2005 EVHA HOME - SITE

• House Nestled in Trees below Bluff

• Natural Windbreak from Cold North Winds

• Cool White Limestone and Grout

• AC units in Shade

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2005 EVHA HOME - ROOF
Voslite Roof Recycled Plastics
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2005 EVHA HOME - SHADING

• Barrier from Sun
• Controls Passive Solar Heat
• Catches Wind

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2005 EVHA HOME - SHADING
Deciduous Trees Provide Shade in Summer
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2005 EVHA HOME - SUNROOM

• Natural Draw

• Air-Lock Entry

• Windows Floor Passive Solar Gain

• Shut off when not in Use

• Limestone Walls Indirect Thermal Gain

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2005 EVHA HOME SUNROOM
FACILITATES NATURAL AIR FLOW
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2005 EVHA HOME FEATURES

• No VOC Paints Stains

• Concrete Floors

• Daylighting Windows Doors

• Cross Ventilation with Windows Doors

• Casement Windows Compression Seal

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2005 EVHA HOME
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2005 EVHA HOME - KITCHEN
TWO SMALLER DISHWASHERS
ENERGY STAR APPLIANCES
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2005 EVHA HOME - FIREPLACE
Xtrordinair Wood Burning Stove Outside
Combustion Air
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2005 EVHA HOME SAVINGS

• Average Monthly Energy Bill 133

• Total Electric Consumption

• All Electric Home

• 5,125 sf

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2006 EVHA HOME
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2006 EVHA HOME - SYSTEMS

• SIPs
• ICFs
• Icynene Foam

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2006 EVHA HOME - DAYLIGHTING
SOLAR TUBES
SOUTH FACING WINDOWS
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2006 EVHA HOME ATTIC FANS
2 SPEED ATTIC FANS WITH 2 PELLA AWNING WINDOWS
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2006 EVHA HOME FEATURES

• No VOC Paints Stains

• Regional Ash Cabinetry

• Tile Flooring

• Low Voltage Lighting

• Energy Star Appliances

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2006 EVHA HOME - TESTING
ENERGY STAR RATER GUARANTEED WATT SAVERS
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2006 EVHA HOME SAVINGS

• Average Monthly Energy Bill 108

• Total Electric Consumption

• 3,600 SF

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2007 EVHA HOME
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2007 EVHA HOME FEATURES

• Extremely Energy Efficient

• Green

• Healthy

• Quiet

• Comfortable

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2007 EVHA HOME PASSIVE SOLAR
PROPERLY SIZED PORCHES OVERHANGS
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2007 EVHA HOME SIPS
EASE OF INSTALLATION
TIGHT ENVELOPE
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2007 EVHA HOME SEALING
FILL VOIDS WITH EXPANDING FOAM
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2007 EVHA HOME FLASHING
FLASHING SEALING WINDOWS AND DOORS
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2007 EVHA HOME HIGH SEER HVAC
INFINITELY VARIABLE SPEED FAN WITH SEPARATE ZONES
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2007 EVHA HOME ROOF
DURABLE REFLECTS HOT SUMMER SUN
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2007 EVHA HOME WATER HEATER
SOLAR HOT WATER
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2007 EVHA HOME WINDOWS
LOW-E WINDOWS DOORS
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2007 EVHA HOME ATTIC FANS
DUAL ATTIC FANS DELAY USE OF AC
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2007 EVHA HOME ENERGY STAR
ENERGY STAR APPLIANCES LIGHTING
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2007 EVHA HOME DAYLIGHTING
REDUCES THE NEED FOR ELECTRICITY
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2007 EVHA HOME - DAYLIGHTING
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2007 EVHA HOME FEATURES

• No or Low VOC Paints Stains

• Regional White Ash Cabinetry

• Rainwater Collection

• PET Carpet, Bamboo, Concrete

• Xeriscaping

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2007 EVHA HOME FEATURES

• James Hardie Siding

• Impasse Termite Protection

• Sealed Combustion Fireplace

• Dual Flush Toilets

• Green Guard Countertops

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2007 EVHA HOME SAVINGS

• Average Monthly Energy Bill 75

• Total Electric Consumption

• 2,028 SF

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2008 EVHA HOME
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2008 EVHA HOME SIPS
STRUCTURAL INSULATED PANELS
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2008 EVHA HOME FEATURES

• SIP Walls Roof

• Crawl Space with Icynene

• Metal Roof

• Regionally Quarried Rock

• Pervious Driveways

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2008 EVHA HOME - DAYLIGHTING
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2008 EVHA HOME FEATURES

• No or Low VOC Paints Stains

• Regional Cabinetry

• Solar Hot Water

• PET Carpet Bamboo Flooring

• Xeriscaping

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2008 EVHA HOME SIPS
REFLECTIVE EXTERIOR FINISHES
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2008 EVHA HOME PASSIVE SOLAR
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2008 EVHA HOME SAVINGS

• Average Monthly Electric Bill 135

• 3,000 sf

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