The Maxx Air Solar Gable Mount Ventilator is built for ventilating residential attic spaces up to 1,500 sq. ft. and is a great fit for situations in which roof-mounting is impractical. Constructed using a durable galvanized steel shroud and solar panel with tempered cell casings that resist impacting wind, hail, and flying debris. Install using the provided mounting bracket system engineered to minimize vibration and ensure quiet operation. This exhaust fan is designed to prolong the life of composition roof shingles by lowering summer attic temperatures and helps to protect attic insulation against mold and mildew in the winter by removing moisure-filled air. This attic fan is an eco-friendly ventilation option and costs nothing to operate, saving you money! Install behind existing louvers or purchase our shutter model (CX2121AM), and add a thermostat (XXSOLARSTAT) for greater control.