The 4SEASONS Flat Roof Solar Powered Vent is specifically engineered for flat roof applications, delivering reliable, maintenance-free ventilation powered entirely by the sun. It helps remove excess heat, moisture, and humidity from crawl spaces and roof cavities to improve air circulation and promote a healthier building envelope—without the need for electrical wiring. Equipped with a 10W high-performance monocrystalline solar panel, the vent provides dependable operation from dawn to dusk while delivering airflow of up to 400 CFM for spaces up to 500 sq. ft. After sunset, it continues to function as a weather-resistant passive roof vent. Built for long-lasting performance, the vent features a heavy-duty spun aluminum housing with a torch-ready detachable flashing, making it ideal for professional flat roof installations. The integrated insulated duct sleeve helps reduce condensation inside the vent assembly, while the high-efficiency brushless motor and optimized polycarbonate fan blade provide quiet, dependable airflow with minimal maintenance. CSA Certified and fully assembled, the 4SEASONS Flat Roof Solar Powered Vent offers a durable, energy-efficient solution for residential and light commercial flat roof applications.