The 14 in. Maxx Air Solar Roof Mount Ventilator is built for ventilating residential attic spaces up to 1,200 sq. ft. This solar attic fan features a galvanized steel dome, brushless DC motor for long life and ultra-quiet operation and a fully adjustable mounted solar panel to create a unit that is durable and achieves a more efficient operation by dialing in your perfect panel position to catch the most Sun exposure. Install involves no wiring into any AC power source and mounts to your roof using standard tools. A well-ventilated attic offers year-round benefits, making your home easier to cool and helping to prolong the life of roofing components during the Summer while preventing mold and mildew in the Winter. Our solar exhaust fan is an eco-friendly ventilation option and costs nothing to operate, saving you money.