Three
years ago, I began volunteering with the U.S. Green Building Council
(USGBC), a non-profit organization that seeks to transform the
way buildings and communities are planned, designed, built, and
operated to enable an environmentally and socially responsible,
healthy, and prosperous environment. Green building is a collection
of design, construction, and operation practices that significantly
reduce or eliminate the negative environmental impact of development
on the environment and occupants
It is no exaggeration
to say that green building practices can have a drastic affect
on our environment for many years to come. Consider this: According
to the USGBC, in the United States alone, buildings account for:
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o
72% of electricity consumption;
o 39% of energy use;
o 38% of all carbon dioxide (CO2) emissions;
o 40% of raw materials use;
o 30% of waste output (136 million tons annually); and,
o 14% of potable water consumption. |
With this in mind,
I took an extensive course in green building technology in order
to pass the Leadership in Energy and Environmental Design test
and achieve the USGBC's LEED Professional Accreditation (LEED
AP). This certification enables LEED AP professionals to provide
third-party verification that a building or community was designed
and build using strategies aimed at improving performance in the
areas that matter most: energy savings, water efficiency, CO2
emissions reduction, improved indoor environmental quality, and
stewardship of resources and sensitivity to their impacts. Since
becoming a LEED AP professional, I've encountered many misconceptions
and misinformation about green building.
What is a Green Building?
A green building, also known as a sustainable building, is a structure
that is designed, built, renovated, operated, or reused in an
ecological and resource-efficient manner. Adopting green building
strategies enables consumers and builders to maximize both economic
and environmental performance.
How Do You Build Green?
There are almost
limitless ways to incorporate green building procedures, and
green construction methods can be integrated into buildings
at any stage, from design and construction, to renovation
and deconstruction.
When building a new structure, use the building site to take
advantage of the sun's natural energy. South-facing windows
offer passive solar heating in the winter, and provide natural
light year round. Using minimal glass in east-west facing
windows helps eliminate glare and cut down on unwanted solar
heating. Use double- or triple-paned windows with a low-e
coating to maximize insulation. |
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Figure
1 Chicago City Hall Green Roof
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In an existing structure
remodel, choose sustainable construction materials and products.
Look for reused and recycled content, zero or low VOC emissions
and toxicity, products made from sustainably harvested materials,
and products with recyclability, durability, and longevity.
Reuse and recycle construction and demolition materials. For example,
using inert demolition materials as a base for a parking lot keeps
these materials out of landfills and reduces construction costs.
Protect and retain existing landscaping and natural features.
Select plants that have low water and pesticide needs, and use
compost and mulches to save water and time.
Install high-efficiency lighting systems with advanced lighting
controls such as motion sensors and dimmable lighting controls,
and provide task lighting to reduce general overhead light levels.
A high-efficiency, in-duct filtration HVAC system can provide
a dramatic impact on indoor air quality.
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Why
Build Green?
There are so many ideas, directives, and opinions about going
green and acting environmentally that it is easy to feel overwhelmed.
While the end result of green building is a better, cleaner
world for your children and grandchildren, there are more
tangible and immediate benefits, too.
To Save Money. Let's face it-as much as we all may
want to protect the environment, we're also concerned about
our bottom line. The good news is that, with features such
as proper lighting, high-efficiency HVAC systems, and good
windows, green buildings can provide an energy savings of
up to 80% |
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Figure
2 Hawaii Gateway Energy Center is a net zero energy building
that actually exports energy. The building's cooling system
uses sea water to reduce energy consumption
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In fact, more efficient
lighting alone can provide an average investment return of 50-80%,
and the payback period can be in less than two years. Water-efficient
fixtures and appliances and native landscaping can dramatically
lower water bills and minimize the energy needs for hot water.
To Provide a More Productive Workplace for Your Employees.
A less quantifiable benefit of green building is improved employee
satisfaction and productivity. A variety of studies show that
buildings with good overall environmental quality can reduce the
rate of respiratory disease, allergies, and asthma, and can enhance
worker performance. In fact, one study found that the potential
financial benefits of improving indoor environments exceed costs
by a factor of 8 and 14 (Fisk and Rosenfeld, 1998). When
you think of the tremendous expense you have invested in your
employees, increasing worker productivity by a very small percentage,
reducing absenteeism by a day or two per year, or encouraging
your employees to work even a few additional minutes per day can
offer big dividends.
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To
Provide Regional Employment. The world is dependent on
a trade system that runs mainly on fossil fuels that emit
greenhouse gasses and contribute to global warming. The further
a product is shipped, the less green it is. Using locally-manufactured
products and materials contributes to a vibrant regional economy
and cuts down on shipping needs. |
To Be More Responsible
for the Environment's Health. There are two ways to look at
the creation of an object. One is to think of a stone dropping
into a pool of water. A splash is made, and ripples radiate in
all directions. Your building is the splash, and its ripples are
the energy it took to make it. You can never account for that
energy again; it has already spread throughout the environment.
The guiding principle behind the sustainable environment is to
make as few ripples as possible. While it may be a commonly accepted
fact that tearing down an old building is cheaper than working
around the complexities associated with existing structures and
utilities, the fact is that tearing down an existing building
disregards the ripples it took to make it in the first place.
Using an existing building is the greenest choice. Reusing all
or part of an old structure keeps materials out of the landfill
and saves the energy needed to build a new one.
The other way to look
at sustainability is that nothing ever really disappears. You
can never really throw anything away. All refuse either transforms
when you burn it or add it to another substance, or remains as
it is forever-even if it is in a landfill.
You can learn more
about the USGBC and read profiles on the more than 24 green buildings
in the region by going to the local chapter's website at
www.usgbc-cincinnati.org.
Chuck
Lohre, LEED AP, is a 30-year veteran of industrial marketing,
and is President and owner of Lohre & Associates, Inc. Marketing
Communications firm in Cincinnati, OH. A recent addition to his
marketing, branding, and communication services is an extensive
course in green building technology to pass the Leadership in
energy and Environmental Design test to achieve the USGBC's LEED
Professional Accredation (LEED AP). You can learn more about marketing
and the course at www.lohre.com,
or call (513) 961-1174.