Because white attracts less sun, less sun would mean less heat making us use the air condtioner less?
Just my idea?
What do you think?
It would reduce heat gain on sunny days, but it probably would not last very long and would take a lot of paint. Also, if there is attic space between your ceiling and your roof, the impact would be even less. Finally, once it started flaking off, it would make a mess around your house.
ya sure, b'cause Reflective surfaces are artificially-
altered surfaces that can deliver high
solar reflectance (the ability to reflect
the visible, infrared and ultraviolet
wavelengths of the sun, reducing
heat transfer to the surface) and high
thermal emittance (the ability to
radiate absorbed, or non-reflected
solar energy). [1] Reflective surfaces
are a form of geoengineering.
The most well-known type of
reflective surface is the cool roof.
While it is true that cool roofs are
mostly associated with white roofs,
they come in a variety of colors and
materials and are available for both
commercial and residential buildings.
Note that today's "cool roof"
pigments allow metal roofing
products to be EnergyStar rated in
dark colors, even black. They aren't as
reflective as whites or light colors,
but can still save energy over other
paints.
Solar reflective cars or cool cars
reflect more sunlight than dark cars,
reducing the amount of heat that is
transmitted into the car’s interior.
Therefore, it helps decreasing the
need for air conditioning, fuel
consumption, and emissions of
greenhouse gases and urban air
pollutants. [2]
In California, over 95% of the cars
and small trucks are equipped with
air conditioners, burning fossil fuels
and producing greenhouse gas
emissions. The Heat Island Group at
Lawrence Berkeley National
Laboratory (LBNL) conducted the cool
cars project since 2010, sponsored by
the California Energy Commission
(CEC), with the goal of reducing air
conditioning usage of cars by
lowering cabin air temperatures.
Cool color parking lots are parking
lots made with a reflective layer of
paint. The project is being
undertaken by Jordan Woods of the
Berkeley Lab
maybe... but your neighbors might hate it, and it reflects heat at them, which may result in increased energy use overall
also if you've touched a white cars on a hot day you'll notice some are cool to the touch, others burns you like a hot stove. not all paints are created equal
finally, white cars are not cooler than black cars under the hot sun.
It won't amount to anything.
No.
Painting the roof shingles white?
Because white attracts less sun, less sun would mean less heat making us use the air condtioner less?
Just my idea?
What do you think?
