Maxx Air Solar Roof Mount Ventilators are built for ventilating residential attic spaces up to 1,500 sq. ft. This solar attic fan features a steel dome and pre-mounted solar panel with tempered cell casings to create a unit that is resistant to impacting wind, hail, and flying debris. Install involves no wiring into any AC power source, mounts to your roof with 6 pre-punched anchor points for stability, and has a tiltable panel to achieve the ideal amount of sun exposure. 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! Link additional solar panels (CXSOLPANEL) for more efficient operation and add a thermostat (XXSOLARSTAT) to set an operating threshold for your roof fan.