Tornado Hybrid Rooftop Ventilator

Born in Australia and brought up in America, this rooftop has the best rain hat ever devised in the world.

The Aussies used vertical turbine blades to create the best rain deflector you can find. It starts turning in the slightest breeze and starts pulling air up at the same time so gravity air flow is immediate and plentiful.

The rotation of the turbine top deflects all rain drops and the harder the wind blows the faster the top turns to knock the rain away. Here is a view of the Aussie design and the Tornado design.