| Twelve
Oaks proposes to set a new standard as it embraces the first series
of issues set forth by the Leadership in Energy and Environmental
Design (LEED) for neighborhoods. These standards will create a strong
relationship between building location, design, and construction.
Building
America
Twelve
Oaks will focus on energy conservation initiatives via the United
States Department of Energy's Building America (BA) program. Field
support for this program is provided by the National Renewable Laboratory
in Golden, Colorado - assisting with technologies that result in
more energy efficient homes and reduced construction waste. Energy
efficient mortgages are also available for BA homes. The building
practices below will potentially be part of the specification of
each home at Twelve Oaks:
- Framing
with 2x6 studs spaced 24" on center and 7/9" sub-floor
sheathing results in less framing and sheathing material and less
construction waste of conventional housing. More space in the
wall cavity allows more thermal insulation with no decrease in
structural safety.
- Increase
insulation in the walls (R26), ceilings (R43), and foundation
(R11), reduces energy consumption and lowers utility bills.
- Extensive
sealing and caulking of each home's interior and exterior prevents
uncontrolled air leakage.
- Placement
of the heat ducts in the building's interior instead of in the
attic or outside walls helps prevent leakage of heated and cooled
air.
- Double-glazed
gas-filled windows with a low E-film decrease heat loss from the
building interior.
- Romex wiring
in combination with airtight electrical outlets in place of conduit
results in reduced drafts at electrical outlets.
- A ventilation
fan controlled by the residents brings fresh air into the home
when needed.
- A direct
vent, sealed-combustion 90% efficiency furnace and high-efficiency
power-vented, sealed combustion gas water heater prevent combustion
exhaust including carbon monoxide from escaping into the home.
- Compact fluorescent
lamps where possible.
- Setback thermostat.
- Low VOC paints.
- Energy Star
rated appliances.
- Formaldehyde-free
kitchen cabinets.
- Low flow
faucets and fixtures.
- Carpet squares
made of recycled content.
- Composite
(wood and plastic) decking materials.
- Native landscaping.
The
Results of Building America:
- Save Twelve Oaks homeowners an average
of $500 per year in consumer energy dollars.
- Reduce construction waste by 20%
- Mortgage companies will issue energy-efficient
mortgages to homeowners since less money is spent on utility bills.
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