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(MS) - With winter utility bills still fresh in
their minds, many homeowners are look
ing forward to warmer weather with mixed
emotions. While they're eagerly anticipating
relief from winter heating costs, they're also
concerned about the alternative - the cost of
keeping their homes cool during the sum
mer months.
Fortunately, innovative new roofing tech
nologies are now available, which can dra
matically reduce the amount of energy need
ed to cool your home during the summer.
The result can be as much as a 20-percent
reduction in air-conditioning costs. What's
more, since these energy-saving roofs are
made of metal, they are also extremely dura
ble, lightweight, and resistant to most natu
ral hazards such as fire, wind and hail.
These energy-saving metal roofing systems
use advanced "cool roof" pigments, which
greatly increase the reflectivity of the paint
ed metal roof surface. Cool roofs reflect a
greater amount of the sun's infrared wave-
lengths, which account for more than half of
the solar energy striking the roof surface.
Most painted metal roofs reflect about 5 to 20 percent of this energy, but
cool-roof coatings can increase this reflectance level to nearly 60 percent.
The difference in temperature can be very dramatic, especially in medium
to darker colors. Yet since infrared energy is invisible, the roof color is unaf
fected.
"When less heat penetrates the roof, the attic remains cooler and, in turn, the
amount of summer heat leaking into the air-conditioned space is reduced,"
explained Tony Chiovare, president of Custom-Bilt Metals. His company
was one of the first manufacturers to incorporate cool roof technology in its
metal shingles, metal shakes and standing seam metal roofing products.
Cool roof technologies have been the subject of years of field tests by re
searchers from Lawrence Berkeley National Laboratory and the Department
of Energy's Oak Ridge National Laboratory. For example, in one recent dem
onstration project, metal shakes coated with Custom-Bilt Metals' TITAN®
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Saving money on energy bills could be as easy as
replacing your roof.
mate zone. The recently revised Chicago Energy Conservation Code also
addresses the issue, since cool roofs also have been shown to reduce the "ur
ban heat island" effect that contributes to urban smog and causes increased
demands on power plants.
Other testing, regulatory and rating systems also address cool roof tech
nology. These include the Leadership in Energy and Environmental Design
(LEED) Green Building Rating System, a voluntary rating system for overall
sustainable building administered by the U.S. Green Building Council; and
the Cool Roof Rating Council (CRRC), created in 1998 to develop testing
and labeling standards for roofing products. Underwriters Laboratories also
offers thermal reflectance testing of roofing products against Energy Star
requirements, as well as requirements of local and state energy codes.
Beyond immediate energy savings, cool roof technology also contributes
to long-term cost savings by increasing the life expectancy of the roof, Chi
ovare added. Because less heat is absorbed, the roof surface undergoes less
expansion and contraction, which extends the roof life and produces even
more cost savings.
Best of all, the savings do not come at the expense of aesthetic appeal. In
addition to standing seam metal roofs, today's metal roofing can faithfully
replicate the appearance of virtually any traditional roofing material, from
wooden shakes and shingles to slate and terracotta tile, Chiovare said. Other
attractive benefits include corrosion and fade resistance, as well as minimal
maintenance and exceptional resistance to wind, thanks to innovative new
designs that interlock adjacent panels for added strength.
"All these traditional metal roofing benefits are now enhanced by the en
ergy- and cost-saving advantages offered by cool roof finishes," Chiovare
concluded.
For more information on cool roof technology, go onlint to www.custom
biltmetals.com.
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Cool Roof finish were found to reduce the
amount of heat penetrating into a home's
attic by as much as 36 percent, offering sig
nificant savings in the energy required to
cool the home. In another case study involv
ing two identical 90,000-square-foot school
buildings in Georgia found a cool roof finish
provided energy savings of about SB,BOO for
the first year of operation.
"The energy savings have attracted the at
tention of builders, utilities, regulatory au
thorities and building code officials. Several
years ago, the federal Energy Star® program
was even-expanded to include roofing prod
ucts that meet or exceed minimum solar re
flectance standards. And now homeowners
could save even more with tax incentives
provided under the new Energy Bill that
passed a number of months ago," Chiovare
said.
Cool roofs are also recognized by the new
ly revised California Code of Regulations.
It establishes minimum levels of solar roof
reflectance for construction in California, de
pending on the building's use, design and cli-
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2006 SPRIN6 HOME 6 GARDEN
312 W