![]() That bathes the entire underside of the roof if combined with adequate soffit venting.Įvery 2 yrs or so I have to go up and adjust and lubricate the turbines on my roof as without fail one starts squeaking as it slowly turns. Passive ventilation with no moving parts is the way I would go, and a ridge vent is at the very peak (hottest part of the attic). Does the un-powered fan spin? Of course, but it's not drawing anymore air into the flow, and is actually slowing down the airflow by absorbing the energy needed to turn the blades. Take a fan, face it towards another fan, and turn it on. However, a turbine roof vent can cover the same area with only a few strategically placed vents. For instance, it needs to take up almost the entire length of a roof for a ridge vent to be effective. How a does a breeze pull anything but a miniscule amount of air out by venturi effect? Although turbine roof vents are visible from the ground compared to some of the other roof vents, they don’t take up a large space. Highlights: Color: Black Net free area: 50 sq-in Overall depth: 7. just like those little Christmas decorations that use the heat of a candle to spin the angels and ring the bells. The WeatherPro ProTurbo Vent has the same look and profile as a traditional whirlybird, but has no moving parts. Duraflo WeatherPRO 60PRO50BL PRO50 Roof Vent, Black. Available in premium WeatherPRO series, standard and specialty roof vents. Stands up to both extreme heat and cold weather, lasting the life of the roof. Made from high-grade polypropylene for durability and long life. ![]() Mine turn on hot summer days even when there is no wind. Duraflo Roof Vents provide exceptional protection against weather infiltration. Personally, I just don't get the idea/physics behind turbine vents.since there are no fins or vanes that extend into the attic space.
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