The paint shade or the material of the exterior of your house can affect the amount of heat (or cold air) that comes through the walls.The color of your home can affect heat absorption. Dark /dull colors can absorb 70 to 90 percent of the sun’s radiant energy, which can then be transferred into the home. Meanwhile, light-colored paint can help reflect the sun’s heat away from the home. i.e. White walls will absorb 35% less heat than black walls.
Building materials also adds to this. Brick or concrete walls may keep the interior cooler on a hot summer day than lightweight wall materials. In addition to choosing building materials or paint colors, there are other natural ways to help keep your house comfortable. Installing shades and planting trees at the south end of your house are also ways to help cool your home,