Selecting certain paint colors may improve a home’s energy efficiency. Certain paint colors also have a psychological impact, making rooms feel warm and cozy or cool.
Dark External Paint Colors
Dark external paint colors may absorb heat from the sun’s rays and aid in heating the home. These may raise energy costs because more energy is required to illuminate a dark room (see Reference 1).
Light Paint Colors
Light external paint colors may reflect the heat and aid in cooling the home. These may reflect the sunlight entering interior windows, allowing a home to rely on natural lighting. Natural lighting may reduce energy costs because less electricity is needed to light the home (see Reference 1).
A room painted with warm colors such as orange or red may feel warmer in the winter. The warm colors may reduce energy costs in the winter because less heat will be required to warm the room (see Reference 1).
Cool Paint Colors
Cool interior paint colors may reduce energy costs in warm climates. The pale colors will reflect the light and reduce the need for air conditioning (see Reference 1).
Least Energy-Efficient Paint Colors
Gray, dark blue and brown are the least energy-efficient paint colors. These absorb heat from the sun, making the room warmer. While this may be good in the winter, more energy may be required in the summer for cooling the room (see Reference 2).
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