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Blueprint for Green Homes-Building with recycled
materials and energy-saving designs is on the rise.
By Diane Wedner for LA TIMES October 14 2001
http://www.latimes.com/classified/realestate/la-000081893oct14.story
Living room walls made of recycled newsprint and carpet pads. Kitchen
cabinets from glued-together chips of recycled wood. Counter tops
of used carpet, bottle
shards, vinyl records and computer parts. Garden walls from slices
of earth, resembling a multilayer chocolate cake.
Sound like some kitschy, post-hippie nod to better living through
the local dump? Not by a long shot.
"Green building," once only the domain of the granola
crowd, has gone mainstream, as architects, designers and developers
have spread the word about the
environmental, economic and health benefits of living green. "When
people understand the benefits of green building ... they never
go back to a conventional home
again," said David Johnston, president of What's Working, an
international design and consulting firm in Boulder, Colo.
While only a handful of cities have building codes or ordinances
that define green building, architects and builders agree that the
structures typically use engineered or
sustainable-yield lumber, energy-efficient heating and cooling units,
nontoxic paints and carpets, and water-conserving designs. Fewer
construction materials are
used, and those that are left over are recycled.
The "greenest" homes are positioned to maximize sun exposure
for natural heating and are well-ventilated to capture breezes.
They use recycled products for
cabinetry, decks, floors and walls, and solar technology, preferably
photovoltaic cells.
Experts haven't tallied the number of green homes nationwide, but
the movement has gained momentum in the last five years, so much
so that city architects from Los Angeles to New York are going green
with new fire and police stations, libraries and community centers,
as well as million-dollar homes and affordable-housing
projects.
Among the benefits espoused by green-building proponents are energy
and water conservation, healthy indoor air quality, cost savings
over time and the superior
construction of the buildings. Many who live in green buildings
also take pride in doing their part for the environment.
Santa Monica architects David Hertz and Stacy Fong began building
their own dream green house six years ago in Venice, when the trend
was just picking up
steam.
The married couple, parents to three children 10 years of age and
younger, installed solar panels (recycled from a commercial building)
to warm the four-bedroom
house and generate hot water.
Their radiant heating system uses solar panels to heat water, which
is delivered to storage tanks. Some of the heat then goes to a "heat
exchanger"--a tank that sends warm water into plastic tubes
embedded in the home's concrete floors and walls, bathtubs and showers,
even concrete furniture designed by Hertz. The warm water circulates
24 hours a day, seven days a week and utilizes only 60 watts of
power, the amount of energy used by a light bulb, Hertz said.
The house also boasts automatic skylights, which open when sensors
determine a temperature change indoors, letting in ocean breezes.
The seven-level, 2,700-square-foot house uses about 75% of the
energy that a traditionally built house would use annually, Hertz
said.
There are no carpets, drapes or decorative moldings to harbor mold,
Hertz said. The concrete floors are sturdy enough for the children
to ride bikes and skateboard in certain indoor areas, and can be
hosed down when they get dirty.
Hertz developed the lightweight concrete, called Syndecrete, which
is used throughout the house--on the floors, as counter tops and
tiles for the kitchen sink and
bathtubs. The product is composed almost entirely of recycled content,
such as ash from electronic components, used carpet, broken bottles,
scrap metal and
videotape recorders, among other "obsolescents of our society,"
as Hertz calls them.
"A lot of houses could be built anywhere--in any city, climate,
country," Hertz said. "Our house is built for this region,
this climate, with local materials."
Home builders, who traditionally have not embraced concepts that
cost more and have an "environmentally friendly" label
attached, have climbed on board the green
train, with some caveats, said Tom Hoyt, chief executive officer
of McStain Enterprises in Colorado.
McStain, which builds upscale homes, introduced its first green
project--a townhouse complex--in 1995, using small-dimension lumber
to cut down on construction
waste. Today the company installs high-efficiency furnaces in its
new homes, offers optional photovoltaic solar panels and builds
outdoor decks from recycled
plastics.
Insulation is derived from wet-spray cellulose (recycled newspaper
and wood fiber materials), and the carpets are made of recycled
soda bottles, which Hoyt claims are more stain-resistant and better
wearing.
"Green buildings are a little more expensive at first, but
you get the payback later," Hoyt said. "They last longer
and you get more back when it's time to sell."
Not all builders are as enthusiastic about green building, which
can add 3% to 15% to a home's price tag. The earlier in the building
process that "green" elements are incorporated, the less
expensive the project is, experts say. Those extra costs typically
are paid back over five years for residential buildings, and up
to 15 years for some commercial buildings, mainly through energy
savings. Some builders still are unconvinced, however.
"In California, buyers are primarily looking for location
first, desirable architecture second and a good floor plan third,"
said Robb Pigg, vice president of operations
at J.H. Shea. "Will they pay $10,000 extra for a home that
uses new technology and products? Probably not."
Nonetheless, many of Southern California's biggest builders are
incorporating some green strategies in their new houses. Shea Homes,
for example, often uses
sustainable forest products--lumber milled from small logs that
are harvested from renewable forests. The company also recycles
its construction waste, such as
Sheetrock, lumber and cardboard.
The builder includes energy-efficient appliances, heating and air
units in its homes, and in San Diego, the company has begun to install
high-tech solar cells on the
roofs of some of its new homes at an extra cost of about $3,000
per house.
One challenge facing builders is the lack of uniform guidelines
for green building, said Mike Hodgson, energy committee chairman
at the California Builders Industry
Assn., a building industry trade group.
Although still not officially recognized within the industry, the
new California Green Builder guidelines, created by the state's
Building Industry Institute, has
established minimum criteria for residential green building: energy
efficiency, air emissions, waste recycling and water conservation.
Builders who recycle 50% or more of construction waste, cut energy
costs, create landscapes that use 25% less water than typical homes,
among other initiatives,
may market themselves as green builders, Hodgson said. Forecast
Homes, Pardee Homes and Shea are among the California builders beginning
to embrace these
green principles, he said.
Builders aren't the only ones going green. Los Angeles established
a Sustainable Design Implementation program recently that provides
guidance for green projects,
said Deborah Weintraub, chief architect for the city.
Weintraub is co-writing a reference guide that will take the widely
used "green" rating system for commercial structures--Leadership
in Energy and Environmental
Design, written by the U.S. Green Building Council--and apply it
to Los Angeles' city codes and ordinances.
Meanwhile, several cities nationwide, including Los Angeles; Denver;
Austin, Texas; and San Francisco, have established sets of green
guidelines for residential
building to aid architects and builders in meeting standards considered
environmentally and energy-friendly.
Going way beyond minimal green standards, Santa Monica architects
Larry Scarpa and Angela Brooks recently remodeled their Venice house
as a quintessential
green home. The husband-and-wife team, lifelong "greenies,"
say they design all their buildings using green strategies, from
their modest Westside abode to the
44-unit affordable-housing complex their firm designed for the Community
Corp. of Santa Monica.
Colorado Court, in the heart of downtown Santa Monica and set for
completion early next year, will utilize high-tech solar panels
to produce electricity; a
low-energy, natural gas-powered turbine system that will provide
100% of the building's hot water needs; and extra insulation throughout
the building. The
development also will feature drought-tolerant plants, a drip-irrigation
system and an underground storm-water retention system that will
capture 95% of the site's
storm-water runoff.
"[The trend] is catching on," Scarpa said, "because
it's the right thing to do, and the houses are beautiful."
On the home front, Scarpa and Brooks' remodeled house, which is
only partially completed, incorporates solar panels that meet 100%
of their power needs,
recycled wood products for their cupboards and floors, walls made
of recycled newsprint and carpet pads, and pink, palm-sanded acrylic
skylights designed to vent the home's heat, which is released through
specially designed windows that bring in cooler outside air.
Santa Monica was among the first American cities to embrace green
building. It adopted a long-term environmental plan in 1994, whose
goals included storm-water
retention, high-density affordable housing, and other green building
initiatives, according to Susan Munves, coordinator for Santa Monica's
energy and green building
programs.
In addition to the Colorado Court project, the city is building
a new structure to house the Fire and Police departments, which
will incorporate a number of green
strategies and will be 36% more energy-efficient than California
codes call for, Munves said.
Casa Verde, an affordable-housing development in Hollywood, incorporates
cross-ventilation corridors and natural light, and framing made
of engineered wood
products, said Bill Roschen, the project's architect. Energy-efficient
heating and air systems are included in every unit, as are tiles
made from recycled materials.
With the advent of programs to increase environmental awareness,
the trend that five years ago was just a whisper has become the
talk of the town.
"Green building has become a part of the dialogue now,"
said Craig Perkins, director of environmental and public works management
for Santa Monica. "It is not
just an accessory; this is how building will be done from now on."
Resources for Green Building
For more information about green building, visit these Web sites:
* U.S. Green Building Council: http://www.usgbc.org
* Global Green USA: http://www.globalgreen.org
* Sustainable Building Industry Council: http://www.sbicouncil.org
* Green Building Alliance: http://www.gbapgh.org
* U.S. Department of Energy: http://www.eren.doe.gov
* Environmental Building News: http://www.buildinggreen.com
* Rocky Mountain Institute: http://www.rmi.org
* National Assn. of Home Builders: http://www.nahb.com
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