Transcript Document

Green Building
• Is it a Fad?
• Will it pass from sight like energy
initiatives of the past?
• Or Is it a Viable Way to Build?
• If its here, what program is best?
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Who is this Guy?
What’s he all about?
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I am not a Tree Hugger
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I am not a Green Extraterrestrial
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I am not a Mad
Building Scientist
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I am the Building Consultant
From EarthCraft Homes
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EarthCraft House™
Sensibly Built for the Environment
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My name is Bob Congdon
[email protected]
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Green Building is not a Star Wars Concept
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What I believe about Building Energy Efficient,
Sustainable, Green Homes
• The non-profit affordable housing industry, says for-profit, affordable
housing builders as “doing well by doing good.” Building energy efficient,
sustainable buildings is the right thing to do—the American builders
thing to do, but it has to be cost effective to work.
• That every builder is entitled to make a profit. No profit-no Green
Building.
• That until builders learn how to profitably create Green housing, either
by law or the active pursuit of profit, Green Building will not be available
to the masses, where it should be, from affordable to high end custom.
• That not one house should be built or renovated without adhering to
practical, cost effective, Sustainable/Green/Energy Conserving
standards based on a cost vs. value evaluation.
• That not one new house, condominium, town house, or apartment
complex should be built in this country without conforming to, at the very
minimum, the Energy Star Thermal Envelope Standards
• Every Building Code will require Energy Conserving-Sustainable/Green
building practices incorporated into their programs over the next 5
years—it has already started.
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I am not going to blind you with
Building Science to show why
you should be doing this.
• Personally I hate the word Green Building—To me it
conjures up visions of Jules Verne and Dudley DoRight. It is not a builders term.
• It implies impracticality and some future Save the
Earth concept-not something we can do today.
• I deal in the real world. It has to make practical
and economic sense. If it doesn’t then it isn’t going
to get done. I am not into fru-fru.
• I like Cost Effective, Energy Efficient, Sustainable
Building. That’s got substance. It sounds like
something a builder would embrace.
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GREEN BUILDING
An effort to create hi-performance, EE
structures that improve occupant
comfort and well being while
minimizing environmental impact.
 Resource conservation during design and
construction
 Resource conservation during operations
 Protection of occupants health, well-being and
productivity
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Why Does Energy Conservation Matter?
• The cost of energy is going to continue to
accelerate and the only practical, short term
solution alive today is conservation.
• Building energy consumption is almost 40% of total
energy use in the US.
• Most states import energy from various producers
outside their region. Easier to conserve than to build
new plants.
• Residential energy consumption has significant
environmental impact. (per State)
– 21 million ton of carbon dioxide,47 thousand tons of
sulfur dioxide,68 thousand tons of nitrogen oxides
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Priorities for Sustainable
Construction
1.
2.
3.
4.
5.
Save Energy
Recycle Buildings
Create Community
Reduce Material Use
Save Water
6.
7.
8.
9.
Maximize Longevity
Protect and Enhance Site
Healthy Buildings
Minimize Construction and
Demolition Waste
10. Green Your Business
From Environmental Building News
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Builders
• As a Builder I know your concerns, pains and
practicality
• Builders have to make a profit.
• Profit by selling more houses, selling houses
quicker or increasing profit potential.
• You can go broke saving the world if you don’t
approach Green Intelligently
• But let me be clear, Energy Conserving,
Sustainable Building Practices are the correct way
to Build no if, ands or buts.
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This isn't Rocket Science 101
• Tightening up what we already do
• Demanding installations like they are intended.
• Tighten the building envelope, Tighten the duct
system, use sustainable materials that don’t have to
be replaced every few years.
• Approach it like it was yours on a budget.
• Look at it like you were going to own it and then
justify what you are doing, and how to make a
profit out of it.
• Doing it to a verified and recognized standard
• One great advantage—Less Call backs. More money
in your pocket.
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Cost vs. Value
The key to the entire process
To a Builder, no matter what program you think is the
greatest, it all comes down to cost to include vs. value
of return-profit. No profit-no houses built.
An actual study done on Cost vs. Value for Affordable
Housing
www.newecology.org
Let’s Look at the 4 programs available in Virginia
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NAHB Green Building Program
LEED’s & LEED’s for Homes
Energy Star
EarthCraft House Virginia
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NAHB Green Building Program
• Green Nation--The National Green Building Program
sets cost-effective guidelines for green building.
Source: BUILDER Magazine; Publication date:
– January 1, 2008 by Brian C. Catalde
• When 800 registered voters were asked last fall about
what would motivate them to either purchase a new
green home or “green” their existing home, 64
percent said that reduced energy costs would be the
biggest reason. With energy prices on the rise, now's
the time to improve the energy efficiency of
America's homes, and the NAHB is helping to lead the
way.
• As advocates for buyers, it's up to the nation's home
builders to make sure the solution is not only
effective, but also less expensive than the problem
itself. Now, more than ever, we need to build on the
success of the local HBA programs that have resulted
in the construction of more than 100,000 green
homes nationwide.
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NAHB Green Building Program-Continued
•Following extensive testing and refinement, our
association and the NAHB Research Center are now
putting the finishing touches on the NAHB National Green
Building Program, which will be launched on Green Day,
Feb. 14, at the International Builders' Show (IBS). The
National Green Building Program includes a scoring tool
that helps builders identify and document green
construction techniques and features in the homes they
build. You can try it out at www.nahbgreen.org. This tool
is the heart of the new program, which also will include a
registry of green homes and builders as well as extensive
educational resources, providing the opportunity for all
of our members to build green.
•On Green Day, we will also introduce the new University
of Housing Certified Green Builder designation, which
will help identify people with considerable expertise in
green building.
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NAHB Green Building Program-Continued
The timing could not be better for two initiatives that will help pave the
way for authentic, cost-effective green building. We also surveyed
builders and developers last fall, and the vast majority of NAHB
members—90 percent—are interested in participating in a voluntary
green building certification program. Eighty percent say they would
choose the NAHB National Green Building Program over other national
programs such as the Green Building Council's LEED-H rating system.
A CLEAR LINE
But that certainly doesn't mean that green must be watered down. Green
comes in many shades, but for NAHB builders, there is a bright line: To
meet the minimum certification requirements under the NAHB program,
homes must meet energy-efficiency levels that are at least equivalent
to Energy Star, the federal EPA program that has enjoyed great success
in the marketplace. Over the past seven years, 750,000 homes have
earned the Energy Star label, indicating that they are at least 15
percent more efficient than required by current energy codes.
When a green home doesn't look or feel significantly different from one
built using more traditional construction methods, when builders have
the tools and resources to build them without significant material or
labor cost increases, and when consumers readily accept the finished
product, then green has arrived. And that's why—and how—the NAHB
National Green Building Program will bring green to the mainstream.
The time has come, and we're ready.
Brian Catalde
PRESIDENT, NAHB WASHINGTON, D.C.
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LEED® for Homes
• What is LEED for Homes?
• LEED for Homes is a green home rating system for assuring homes are
designed and built to be energy and resource efficient and healthy for
occupants.
• LEED can be applied to single and multi-family homes and is intended for
both market-rate and affordable housing. USGBC began the pilot test of
LEED for homes in August 2005.
• There are currently 10,250 homes across the U.S. involved in the LEED for
Homes program and 400 homes that have already been LEED certified as a
green home. There are 535 builders across the U.S. participating in the
LEED for Homes program.
• The rating system was launched in December 2007.
• What are the benefits of a LEED home?
• LEED certified homes are safer, healthier, more comfortable and more
durable than conventional homes. The benefits of a LEED home include
economic benefits such as lower energy and water bills; environmental
benefits like reduced greenhouse gas emissions; and health benefits such as
reduced exposure to mold, mildew and other indoor toxins. Also, LEED
homes fit into a family’s budget, the net cost of owning a LEED home is
comparable to that of owning a conventional home.
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LEED® for Homes--cont
• How can consumers compare green homes?
• One of the many challenges faced by a homebuyer is comparing a
green home to another home. Any one home can be called "green," but
how does the homeowner know that it really is green?
• LEED certification is something that consumers can look for to readily
identify green homes that have been third-party inspected,
performance tested and certified to perform better than conventional
homes.
• The LEED certification assures that the home you are purchasing was
designed to meet the highest criteria and is operating exactly the way
it is supposed to. Visit www.greenhomeguide.org for more information.
• What is the difference between LEED for Homes and other green home
building programs?
• There are currently more than 70 local or regional green home building
programs in the United States. Visit www.usgbc.org/leed/homes for a
complete list. Each of these programs is unique, with its own
specifications and requirements. LEED is the only national homes rating
system that clearly defines and establishes benchmarks for green
homes. It enables builders anywhere in the country to obtain a green
LEED rating that can be recognized by homebuyers nationwide. LEED is
a consensus based national system for green home building that is
developed and refined by a diverse committee of national experts and
experienced green builders.
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LEED® for Homes--cont
Why should I build a LEED home?
LEED has become recognized in the commercial building sector as the national system of
performance for green buildings and has rapidly gained recognition among the public at large.
LEED is designed to serve the residential construction industry.
Home builders using LEED will be able to differentiate their homes as representing the highest
quality of green homes on the market. Furthermore, the LEED certification will make it easy for
home buyers to readily identify high quality green homes.
How will the quality of LEED homes be assured?
The strength of the LEED program is rigorous third-party verification and documentation. Each
LEED home will undergo both on-site inspections to ensure that the LEED features have been
installed correctly, and thorough performance testing to ensure proper performance.
Who is responsible for rating a LEED home?
LEED homes are rated by LEED for Homes Providers, local organizations with
documented experience and expertise in their region's market. A LEED for Homes
Provider has three primary roles in a given market:
Marketing LEED to builders;
Providing green home rating support services to builders;
Training, coordinating, and overseeing LEED qualified inspectors and builder
support staff.
LEED for Homes Providers are located around the country and contracted through the
USGBC to provide services to builders. They have demonstrated outstanding
abilities and have a proven record of supporting builders in the construction of high
performance, sustainable homes. See the list of providers at
www.usgbc.org/leed/homes.
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LEED® for Homes--cont
What is the process for rating a LEED home?
Specified performance tests and inspections will be conducted by the LEED for Homes
Provider. When all of the LEED features have been verified, a rating certificate will
be issued to the builder for that qualified LEED home.
How much will it cost to earn a LEED Home rating?
Documentation and verification fees for LEED are established by each LEED for LEED for
Homes Provider. Fees for the initial verification tasks range from $500 to $2,000 per
home. The cost of verification will vary with size of the home, the LEED rating
sought (i.e., Certified, Silver, Gold, Platinum), travel time required by the rater, the
number of homes being built, and the builder’s experience with green home building
techniques. Certain areas may have cost incentives provided through utilities, state
energy organizations or corporate sponsors.
Where can I find out more about green home building?
There are many green home building resources available on the internet. Many of the
existing local green home building programs (listed online at
www.usgbc.org/leed/homes) offer training and educational information. USGBC has
launched a new Web site that features resources on green home building for
consumers. You can visit that Web site at: www.greenhomeguide.org
LEED contact information
For questions about LEED, please call the USGBC at 202-828-7422 or [email protected].
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Builders Pit Leed-H against NAHB
Green in One on One.
• Professional Builder-1/1/2008
• Michael Chandler: Chandler Design
Build-Mebane, N.C.
• Steve Glenn-Living Homes, Santa
Monica, Calif.
• About 5K
• Self-Certification
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EarthCraft House Virginia
• A Green Building program brought to VA
by the Virginia Home Builders
Association and Southface Institute
• A program developed by builders for
builders.
• An energy portion and a green portion.
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Scoring a House
• 12 categories
• Minimum total of 150 points
• Combination of energy efficiency and
environmentally responsible practices
• Innovation encouraged
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EarthCraft House
Categories
• Site Planning
• Building Envelope and
Systems
• Appliances/Lighting
• Resource Efficient Design
• Resource Efficient
Materials
• Waste Management
• Indoor Air Quality
• Indoor Water
Conservation
• Outdoor Water
Conservation
• Homeowner Education
• Builder Operations
• Bonus Points
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EarthCraft House
Home Buyer Benefits
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Higher quality
Less cost
Healthier
More comfortable
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Energy Efficient
Building Envelope
and Systems
Required: Home must meet or exceed Energy Star
Energy Star Homes
• National program to recognize homes that are 30% more
efficient than standard construction
• Requires energy modeling or Builder Option Package
(BOP) with blower door and duct blaster tests
– BOP items are marked with a star on worksheet
www.energystar.gov
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Air Leakage Test
EARTHCRAFT measures the amount of air that leaks through
the building envelope with a blower door test.
• Maximum leakage
cfm50 / sfbe < 0.50
• sfbe is square footage
of building envelope
surface area
• Address ventilation
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Duct Leakage Test
Required: duct connections sealed with mastic or
butyl tape
• Duct leakage less than
6% of conditioned floor
area
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Opinion on Benefit/Preference
of one program vs. another
• NAHB Green-Volunteer program-can be certified.
Basically developed for areas with no HBA backed
program. EarthCraft was brought to Virginia by the
Home Builders themselves. No volunteer program
without 3rd party verification will hold water with
the litigious, informed consumer of today.
• LEED’s: EarthCraft Virginia will be the provider.
Great sophisticated, paperwork orientated program
and expensive. People with deep pockets may
demand it. Kind of like be the first on your block.
Maybe it will come down in price. Great
commercial program.
• Energy Star—Great for Thermal Envelope, has no
Green portion. It has developed a healthy house
checklist. Part of the EarthCraft Program.
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EarthCraft Virginia
• To quote Tina Turner: Simply the best. Better than
all the rest
• 3rd Party verified. Reasonable pricing. Common
sense orientated. Developed by Builders for
Builders. Brought to State by Virginia HBA.
• Combines Energy Star with Green. You get a
Certificate from both.
• Developed in Conjunction with Southface Institute.
Who every other Green program imports information
from. They sit on top of the mountain.
• Super, personable, handsome, knowledgeable
technicians to work with.
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EarthCraft House™
Sensibly Built for the
Environment