do roof window deflectors really work?
Thread Starter
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Senior User
Joined: Nov 2010
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do roof window deflectors really work?
I've read mixed reviews,
what's funny is searching for roof wings, aero shields, etc..
I can't hardly find any for sale on line
I must be using wrong keywords
what's funny is searching for roof wings, aero shields, etc..
I can't hardly find any for sale on line
I must be using wrong keywords
Lead Driver
Joined: Dec 2013
Posts: 9,762
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Are you talking about vent shades?
I used to have to use those down here so I could keep the window open a slightly without letting rain in. I had the back window blow OUT of a 2-door hatchback because it got too hot and the pressure had to release somewhere... Our trucks have vents in the back to prevent this... Had the window not just shattered in place I never would have believe it. (and it was protruding OUTWARD from the vehicle).
The hood deflectors are hit and miss. They help but are not 100%. I've run them and still had a rock hit the hood - but I have also seen many a rock hit them and bounce over the vehicle and into the persons windshield behind me.
I kinda don't know what you mean by roof wings or aero shield... So this is best I can do at the moment.
I used to have to use those down here so I could keep the window open a slightly without letting rain in. I had the back window blow OUT of a 2-door hatchback because it got too hot and the pressure had to release somewhere... Our trucks have vents in the back to prevent this... Had the window not just shattered in place I never would have believe it. (and it was protruding OUTWARD from the vehicle).
The hood deflectors are hit and miss. They help but are not 100%. I've run them and still had a rock hit the hood - but I have also seen many a rock hit them and bounce over the vehicle and into the persons windshield behind me.
I kinda don't know what you mean by roof wings or aero shield... So this is best I can do at the moment.
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From: Roll Tide, Roll
Beef cake. The roof mount air deflectors like on a big rig? If so its a waste of money. The trailer would have to be very close to it. Or the air will foil right back down with no help at all. Actually its a hinderence, you have more air drag on the deflector.
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Lead Driver
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Beefcake: Sorry I have no experience with those. Thanks for the clarification though!
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From: Roll Tide, Roll
Total waste of money as I stated earlier. You would need it very high as wide as trailer. And side curtains to do any good at all.
As Sam said. The back of trailer reducing vacuum is what needs disrupted.
As long as your trailer is the trailer bottom curtains would probably be a wiser thing to do.
As Sam said. The back of trailer reducing vacuum is what needs disrupted.
As long as your trailer is the trailer bottom curtains would probably be a wiser thing to do.
