I’m a roofer and I’m here to tell you that roof colors matter. It depends on where you live. See when you’d want to choose reflective roof shingles and when you’d want to choose dark asphalt shingles for your house. And see how your energy bills will be different, based on the roof shingle colors you choose.
Radiant barrier roof sheathing has a highly reflective material facing the interior of your attic. It will seriously reduce your home’s energy consumption. If you like saving money and helping the environment you should really look into radiant barrier roof decking. Trust me you’ll be happy you did.