Does the color of the shingle have an effect on roof temperature?
Yes. In fact, the temperature on the surface of a roof with light-colored shingles, compared to one with dark-colored shingles, can vary by as much as 40 degrees. This does not mean, however, that the selection of a lighter or darker shingle color will significantly affect attic temperature. Light-colored shingles are often thought to result in lower attic temperatures; for this reason, white is commonly used in warmer climates. However, the interior attic temperature should be affected very little if proper ventilation is in place.