Helios Fans DDF 355

The Helios DDF 355 is a roof-mounted ventilation unit designed for air inlet and outlet or direct connection to ventilation pipes with standard diameters. Its structure includes a large, circulating rolled lead flashing, allowing seamless adaptation to a wide variety of roof tile shapes and profiles typically found on pitched (saddle) roofs.

Built for durability, the DDF 355 features a sturdy support plate and components made of galvanized sheet steel, offering excellent protection against corrosion and environmental wear. The hood is finished in a distinctive brick-red coating, providing a visually harmonious integration with traditional roofing styles.

With easy installation and robust design, the Helios DDF 355 is an ideal solution for effective roof-level ventilation in residential and light commercial buildings.