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Paint Color and Room Temperature
Name: Joel
Status: student
Grade: 6-8
Location: IL
Country: N/A
Date: May 2006
Question:
Does paint color affect the room's temperature?
Replies:
In principle, it might, but there are many other factors that
are likely to be more important --
heat, insulation, drafts, and so on. The paint color more often
lends the "mood" of a room. Light and bright colors tending to be
more "energizing". Dark colors tending to be more "tranquilizing".
But these are psychological more than physical effects.
Vince Calder
Joel,
You undoubtedly have heard or experienced that, especially during
the summer months, dark painted cars are warmer than light colored
ones. This is because - all things being equal - white reflects more
sunlight (energy) than black.
The same could be said about a house, BUT the effect is not quite so
observable since there are so many other factors in a house that
have a much greater effect than the internally reflected energy:
insulation, air circulation, heat sources and their locations, etc.
Still - all things being equal - the color (and the amount of energy
reflected), in principle should have an effect.
Greg (Roberto Gregorius)
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Update: February 2012
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