The Red Dragon® RD 6009 Roof Dryers defrost, dry and get you back on the job with minimum effort. Our rugged design and user-friendly features make them the perfect choice for professional roofing contractors. Use them to dry surfaces after ponding water has been removed or to remove morning dew, frost or light debris. The Roof Dryers work by combining high heat (up to 350º F) and a 200 mph airstream to facilitate quick drying and reduce costly downtime. There are no electrical cords or danger of electrical shock.