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ENERGY SAVINGS > ENERGY EFFICIENT |
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"WHITE ROOFS ARE
HIGHLY ENERGY EFFICIENT" |
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A white PVC roof
can be a smart way to reduce energy consumption and save money for
you and your company. These types of roofs are highly
reflective against the suns light and extremely energy efficient
compared to other systems. Some benefits you will see:
- A reduction in building
energy consumption by up to 40% (found in yearly
heating and cooling)
- Improved insulation
performance to reduce winter heat loss and summer heat gain
- A Reduction of work load
passed on to your HVAC units each year extending the life of those
units
- Cooler temperatures for
factories that do not provide air-conditioning in their
manufacturing facilities
- Higher reflectivity and
less heat absorption by the PVC material will extend the materials
life
- Reduction of the amount of
CO2 emissions that cause global warming
How much you will save
depends on your location and current energy rates as well as other
factors specific to your buildings. For a detailed analysis of
your potential energy savings, CLICK HERE.
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Most white PVC roofs are Energy
Star compliant and approved by the EPA. This means you are
allowed to take advantage of State and Federal Government tax credit
programs, power company discounts (if offered locally), interest
free loan programs, and equipment rebate incentives. Other
roofing systems such as EPDM, TPO, and built up do not qualify for
these money saving benefits. These systems also do not have the
ability to save you money on your energy bill.
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SAVINGS
STUDIED. SAVINGS PROVED. |
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The Heat Island
Group has monitored buildings in Sacramento with
lightly colored, more reflective roofs. They found that these
buildings used up to 40% less energy for cooling than buildings with
darker roofs.
The Florida Solar Energy Center performed a
similar study, also showing up to 40% cooling energy savings.
Conversely, cool roofs can reduce
the heat island effect and save energy. In a study funded by
the U.S. EPA, the Heat Island Group carried out a detailed analysis
of energy saving potentials of light colored roofs in 11 U.S.
metropolitan areas. About ten residential and commercial
building prototypes in each area were simulated. They
considered both the savings in cooling and penalties in heating.
They estimated saving potentials of about $175 million per year for
the 11 cities. |
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What are the benefits of ENERGY STAR roof products?
Benefits of ENERGY STAR roof products include:
- Cost and energy
savings. Reflective roofs can reduce
roof surface temperature by up to 100oF preventing the sun's heat
from transferring into the home or building. ENERGY STAR labeled
roof products keep buildings cooler, reducing energy use, utility
bills, and air pollution.
- Downsized A/C
equipment. A reflective roof can reduce
peak cooling demand by 15%. The home or building owner may be able
to purchase a smaller, less-expensive cooling system.
- Extended roof
life. Roofs undergo significant
expansion and contraction as they heat and cool throughout the
day. Heat absorbed by the roof can also accelerate degradation by
ultraviolet rays and water. A reflective roof can reduce the
amount of thermal shock that occurs on the roof surface and make
the roof last longer.
- Decreased
pollution. When widely used in a
community, ENERGY STAR labeled roof products decrease air
temperature and cooling demands, which reduces the amount of smog
in the air and benefits the entire community.
- Reduced Heat
Island Effect. Roofs made of
non-reflective products cause the temperature of the air passing
over them to rise, resulting in an increase in the overall
temperature of the area, also known as a "heat island effect." The
elevated temperature leads to increased building and vehicle air
conditioning demand, increased levels of smog, and the associated
increased incidence of heat- and smog-related health problems.
Because ENERGY STAR labeled roof products lower surrounding air
temperature and decrease necessary cooling demands, they reduce
the amount of smog in the air. For more information on the heat
island effect go to:
http://yosemite.epa.gov/oar/globalwarming.nsf/content/actions.html
and
http://eetd.lbl.gov/HeatIsland
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FAQ ABOUT ENERGY
STAR RATED ROOFING SYSTEMS |
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How much can businesses expect to save by installing
ENERGY STAR labeled roof products?
Energy savings from installing ENERGY STAR labeled roof products
will depend on the geographic location and climate where it is
installed, existing insulation levels in the building, the type of
roof it replaces, the type of roof installed, and how well it is
kept clean and maintained. A savings calculator will help you
estimate savings. In general, cooling energy savings can be as high
as 50%. Additionally, a reflective roof can reduce peak
cooling demand by 10 to 15%. As a result, building owners may
be able to purchase smaller, less expensive HVAC systems.
Will
installing an ENERGY STAR compliant roof product save me money no
matter where I live?
Homes and buildings located in hot and sunny climates will realize
the greatest energy and cost savings. So, people living in southern
geographic areas that use more air conditioning will see greater
reductions in their energy bills than people living elsewhere in the
country.
Under
which circumstances will ENERGY STAR labeled roof products generate
the greatest savings?
In general, building owners will save the most money on energy bills
by installing an ENERGY STAR labeled roof product if their building
has the following characteristics: high air-conditioning bills, a
large roof surface as compared to the building's overall size, lower
levels of insulation, and/or a location in a hot, sunny climate. The
most cost-effective time to install an ENERGY STAR-labeled roof
product is when re-roofing, constructing new buildings, or
maintaining a roof by applying a coating.
Will
I save money by using reflective roof products if my home or
building already has a high level of insulation?
To be energy-efficient, a home or building should have adequate
insulation. A
map of suggested insulation levels is available from the
Department of Energy. But, you will notice greater savings on your
cooling bills if you install ENERGY STAR labeled roof products on a
building with a lower level of roof insulation. However, when
installing a reflective roof while constructing a new building,
doing a major renovation, or replacing your whole roof system, you
should consult with your contractor to maximize savings by making
sure an optimum level of insulation is installed.
Can I
expect the same level of savings over the entire lifetime of my
roof?
Due to normal wear and tear, some degradation of roof reflectivity
can be expected, particularly within the first few years after
installation. Flat roofs may accumulate more dirt and debris because
their slope is not great enough to allow washing by rain. Following
maintenance procedures minimizes degradation and maximizes energy
savings. Consult your roofing contractor or product manufacturer to
learn more about recommended maintenance procedures and schedules.
How
do ENERGY STAR Roof Products compare with standard roof products in
terms of durability?
EPA understands that the water tightness, durability, and longevity
of a roof are the primary concerns of building and homeowners. These
participating manufacturers must back their compliant roof products
with warranties that are comparable to their other roof products.
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