WhirlyBird Turbine Vents

Discussion in 'Roofing and Siding' started by nealtw, Aug 15, 2011.

  1. Aug 15, 2011 #1

    nealtw

    nealtw

    nealtw

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    Has anyone seen a study that shows these move more air than any other vent of the same size:rolleyes:
     
  2. Aug 15, 2011 #2

    oldognewtrick

    oldognewtrick

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  3. Aug 15, 2011 #3

    nealtw

    nealtw

    nealtw

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    I have checked it out, they don't make any claims like you would expect, if they really do better than flat vents.
     
  4. Aug 16, 2011 #4

    paul52446m

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    I have one 14"rd. wind vent in a attic that is 800 Sq.' At a 7 mi. an hr. wind, it will move 4 times more than the 12" sq vent that was there before. This was
    tested with a CFM tester that i use for balancing commercial kitchen in restaurants. Paul
     
  5. Aug 16, 2011 #5

    nealtw

    nealtw

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    Wind blowing over an open hole will vacume the air, what happens when it is stopped and I would like to know how that would compare on a day when there is no wind because that what really counts.
     
  6. Aug 16, 2011 #6

    paul52446m

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    Your right the wind moving over a hole can pull a vacuum, but the same wind turning the wind vane moves a lot more air. and on a no wind day most roof vents are 6 or 8', mine is 14" and because its a flat roof i put it two foot in the air. This creates more chimney
    action and moves more air. also it does not get under the snow and stop working like flat vents. I really like the wind vents
     
  7. Aug 17, 2011 #7

    nealtw

    nealtw

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    I'm just trying to settle an arguement for a couple of friends, everyone as an opinions and no one has proof. Still looking for that study or text book or something.
    Thanks Neal
     

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