EarthCraft Virginia provides a certification process for new, residential construction that serves as a blueprint for healthy, comfortable homes that reduce utility bills and protect the environment. This state-wide program is a partnership between Southface Energy Institute the Home Builders Association of Virginia. 

 

The EarthCraft program was created approximately ten years ago, in Atlanta, Georgia, by collaboration of Southface Energy Institute and the Atlanta Home Builders Association. With national recognition and respect as a technically sound, voluntary green building program, EarthCraft House allows builders to raise the bar in quality construction, growth management and environmental stewardship.


To date, in Georgia, EarthCraft House has certified over 4000 homes. The EarthCraft House Program was brought to Virginia in 2006 to fill the need for an established green building process. With over 80 builders here in Virginia and growing, it is estimated that 300 homes will certify in 2008, coupled with over 30 multi-family projects representing over 1500 units.

 

How It Works?

Builders are guided through a design review to identify site planning and construction decisions.  A holistic, point-based worksheet is adopted addressing all aspects of energy efficiency, durability, indoor air quality, resource efficiency, waste management, and water conservation.  The worksheet provides an array of options that can be combined in various formulas to make projects certifiably green. An energy analysis confirms that each home will meet a higher standard and prove a 15% reduction in energy consumption over 2004 IECC. Ongoing third party verification ensures quality, from site preparation to final diagnostic house testing.

 

Why Build EarthCraft?

EarthCraft promotes diligent air sealing of the building envelope and its mechanical systems while still allowing for fresh air intake. Air sealing at little additional cost, provides a tighter building envelope and thus homes are more energy efficient and less costly to occupy. Because homes are tight and properly balanced, pollutants are eliminated, resulting in better indoor air quality. Resource efficient materials such as concrete with fly ash, cellulose insulation, carpet pad and carpet containing recycled materials are some of the options builders and homeowners can choose to defer wastes from landfills. With windows and insulation levels that meet or exceed conventional code requirements, water conservation measures, and the use of ENERGY STAR appliances, utility bills remain low after move-in. Homeowners boast of comfort and the security of owning a durable home. Not only is the EarthCraft certification healthy for the environment, but it’s healthy for the homeowner and their wallet.

 

ELEMENTS OF EARTHCRAFT HOUSE VIRGINIA

EarthCraft Virginia allows builders great flexibility in achieving environmental performance.  These are some of the most common measures builders choose to earn EarthCraft Virginia certification.

Earthcraft

 

 

 

 

 

 

 

 

 

 

 

 

       Earhtcraft House



 



 

 

 

 

 

 

 

 

 

 

 

 

   

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SITE PLANNING
• Erosion control site plan

• Mill cleared logs

• Tree preservation plan

• Protected tree save area (min
25% of development or lot)

• Tree planting (min 12 trees

per acre of developed land;
min 2” caliper)

 

RESOURCE EFFICIENT
DESIGN

• Floor joist @19.2” centers
• 2-stud corner with drywall
clips or alternative framing
• T-walls with drywall clips or
alternative framing

 

WATER-INDOOR
• High-efficiency water heater
• Tankless water heater

 

WATER-OUTDOOR
• Drought-tolerant landscaping
• Efficient irrigation system
with controls

 

ENERGY EFFICIENT
BUILDING ENVELOPE AND
SYSTEMS

Air sealing measures
• Chases sealed and insulated
• Bottom plate sealed to floor
or foundation
• Gaps in exterior wall
sheathing sealed
• Shower and tub drains sealed
• Scuttle holes weatherstripped
• Pass blower door test
Insulation
• Flat ceilings R38
• Foundation walls R13
• Slab insulation R10
Windows
• Windows NFRC certified
with label, and U-factor less
than 0.40
Heating and cooling
equipment
• Manual J calculation for
sizing heating and cooling
equipment
• Ductwork and air leakage
test
• Air handlers and duct
systems sealed with mastic or
mastic tape
• No ducts in exterior walls
• Pass duct leakage test

 

RESOURCE EFFICIENT
BUILDING MATERIALS

• Insulation (min 25% recycled
content)
• Engineered roof framing
• Roofing (min 30-year
warranty)
• Walls covered with builder
paper or housewrap (drainage
plane)
• Back-primed siding and trim
• Window and door pan and sill
flashing integrated with
drainage plane
• Window and door head
flashing integrated with
drainage plane
• Roof gutters discharge water
5’ away from foundation

 

INDOOR AIR QUALITY
• Combustion water heater
isolated from conditioned
space
• Gravel bed beneath slab
• Vapor barrier beneath slab
(above gravel) and in crawl
space
• Bathroom exhaust fans
ducted to outside
• Passive radon/soil gas vent
system
• Outside air intake
• 2” pleated filter or thicker

 

HOMEBUYER EDUCATION
• Review energy operations
with homeowner
• Environmental features
checklist for walk-through

 

BUILDER OPERATIONS
• Environmental checklist
provided to all subcontractors
• Certified Professional Home
Builder Certificate

 

HOMEBUYER EDUCATION
• Review energy operations
with homeowner
• Environmental features
checklist for walk-through

 

BUILDER OPERATIONS
• Environmental checklist
provided to all subcontractors
• Certified Professional Home
Builder Certificate


BONUS POINTS

• Location convenient to mass
transit
• Exceeds ENERGYSTAR by
30%
• Housing affordability

 

ENERGY EFFICIENT
LIGHTING/APPLIANCES
• ENERGY STAR dishwasher
• Indoor fluorescent fixtures

 

WASTE MANAGEMENT
• On-site grinding of wood and
drywall waste
• Central cutting area for
framing

 

EARTHCRAFT HOUSE
TOTALS
Certification requires 150 point total
with the points derived from energy
efficiency, including satisfactory
test results.