The best place to start saving energy is at the top…Your Roof! When it’s time for a new roof, you also have an opportunity. An opportunity to reduce your monthly power bill! The Roof of your Sacramento area home is like a lid to your home. It needs to do two things: Prevent interior heated and cooled air from escaping. Keep heat gain to a minimum Speaking of the roof, we really mean everything above your ceiling. The attic and the temperature of the attic is our primary concern. If we can keep the attic as cool as possible in.