The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems.
Rotary turbine roof vents.
Their economical design requires very little maintenance has a low structural impact and exhausts with virtually silent operation.
Rv 38 doc type.
Item 863694 model tob12sbr.
As soon as it starts to spin it vacuums air out of your attic.
Air vent airhawk 12 in aluminum externally braced roof turbine vent.
Because the rotary roof turbine vents are completely wind driven they require no electrical operating or wiring costs.
A turbine vents spins with the slightest breeze.
Roof turbines built in thermostat roof turbines alum root 12 b vent cap.
A turbine vent is a passive ventilation device.
They are an easy to install and energy smart vent option.
Wind turbine turbine roof vent 12 in.