The MoffittVent™ is the most effective and efficient natural ventilation device on the market today. This large capacity ventilator exhausts large volumes of warm air without letting any rain in.  Wind direction and velocity do not negatively affect performance. In fact, higher winds can improve ventilation in many situations. The standard model can withstand winds up to 130 MPH at grade. Adjustments can be made to accommodate higher wind speed requirements.

Our team custom engineers each MoffittVent to meet local building codes, specific requirements, and customer requests. We regularly design to adapt for high snow loads, corrosive environments, or even painted a special color to match the other architecture. Ventilators mount on the ridge, the edge, or down-slope. If an industrial building needs a MoffittVent, our team will design one for it.

Moffitt has custom designed, manufactured, and installed The MoffittVent natural ventilator for over 60 years.

Standard Features
  • Throat sizes: 24” – 180”
  • Lengths: 10’ – 1000’+
  • Hot-Dip Galvanized Steel Frame
  • Galvalume sheeting with Mill Finish
  • Transverse baffles increase air flow through the unit.
  • 100% free area to face area ratio


Optional Features
  • Sheeting Options: Aluminum, Stainless Steel, Fiberglass
  • Sheeting Paint Options: Kynar® Exterior with Wash Coat Interior; Kynar® Interior and Exterior, other specialty coatings
  • Frame Options: Corrosion Resistant, Painted Frames, Stainless
  • Bird Screen
  • Damper: Manual, Motorized

Product Catalog

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Product Testing and Certification
  • Airflow performance test tunnel
  • Weather tightness
  • Wind
  • Damper cycling
  • High Temperature
Product Mounting
The MoffittVent™ can be ridge, flat, single slope, or down slope mounted.

Product Video

Hurricane Ian may impact operations at the main office in Jacksonville Beach. If you need immediate assistance, please contact your local office.Click Here to Find Your Local Moffitt Office