Fresh Air Ventilators for Your Raleigh Home Fact: Proper attic exhaust and ventilation help remove moisture and heat build-up in the attic. Ventilation may make your home more comfortable during the sweltering summer months and help decrease the out of pocket expenses of using your AC system up to 12%. Yellow Dot Heating & Air Conditioning specializes]12] in environmentally-friendly solar powered exhaust fans and other forms of weatherization to help lower your energy use. Still curious? Find out more about Solar Powered Attic Exhaust Ventilation or to schedule your FREE Energy Audit, reach out to Yellow Dot Heating & Air Conditioning at 919-754-8686 today!