The lighter the material from which the roof is made, the faster it cools after direct sunlight ceases to shine on it. Metal roofs cool very easily and return to the same temperature as the surrounding air. Asphalt and ceramic roofs have a denser mass and therefore retain heat longer.

Keep in mind that the longer roofs stay hot, the more heat they transfer into the home. The insulating layer that is installed under the metal profiles also helps not to transfer excess heat inside the house. The color of the metal roof also affects its heating.