No. In fact, when you have proper roofing ventilation, it decreases your energy consumption. The flow of air helps to keep your home cooler during the summer and warmer during the winter. This lessens the need for you to have your heating and cooling system running full-blast year-round. If you are interested in cutting your energy costs, you need to contact Paradigm Roofing and have one of our licensed roofing contractors come and assess your roofing ventilation. You could potentially save hundreds of dollars a year by having proper ventilation.